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1 Acarologia A quarterly journal of acarology, since 1959 Publishing on all aspects of the Acari All information: acarologia@supagro.inra.fr Acarologia is proudly non-profit, with no page charges and free open access Please help us maintain this system by encouraging your institutes to subscribe to the print version of the journal and by sending us your high quality research on the Acari. Subscriptions: Year 2018 (Volume 58): Previous volumes ( ): 250 / year (4 issues) Acarologia, CBGP, CS 30016, MONTFERRIER-sur-LEZ Cedex, France The digitalization of Acarologia papers prior to 2000 was supported by Agropolis Fondation under the reference ID through the «Investissements d avenir» programme (Labex Agro: ANR-10-LABX ) Acarologia is under free license and distributed under the terms of the Creative Commons-BY-NC-ND which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original author and source are credited.

2 PHYTOSEIIDAE (ACARI) OF LA REUNION ISLAND BY Serge QUILICI*, Edward A. UECKERMANN**, Serge KREITER *** and Jean-Franr;:ois VAYSSIERES * ACARI ACAROFAUNA PHYTOSEIIDAE PREDATORY MITES LA REUNION ISLAND (FRANCE) ACARI ACAROFAUNE PHYTOSEIIDAE PREDATEURS!LE DE LA REUNION (FRANCE). SUMMARY: Twenty three species of the family Phytoseiidae are known from La Reunion Island, of which 14 are newly recorded (1 0 Amblyseiinae, 2 Phytoseiinae and 2 Typhlodrominae). The sub-family Typhlodrominae is mentioned for the first time from the island. Additional host plants and locality records are also given for 5 species of Amblyseiinae already recorded, as well as for the newly recorded species. Brief descriptions of all the species are given. RESUME: Vingt-trois especes de la famille des Phytoseiidae sont desormais connues de l'ile de la Reunion, 14 d'entre elles etant signalees pour la premiere fois (10 Amblyseiinae, 2 Phytoseiinae et 2 Typhlodrominae). La sous-famille des Typhlodrominae est mentionnee pour la premiere fois dans l'ile. Des plantes h6tes et des localites de collecte supplementaires sont fournies aussi bien pour 5 especes d' Amblyseiinae deja mentionnees que pour les especes nouvellement signalees. Toutes les especes font l'objet d'une courte description. INTRODUCTION The phytoseiid fauna of La Reunion Island is still poorly known. In a study of the Tetranychidae and their predators, GUTIERREZ & ETIENNE (1986) mentioned only two species of Phytoseiidae: Amblyseius ovaloides (now Euseius ovaloides) Blommers and Phytoseiulus persimilis Athias-Henriot. In a more recent study, QUILICI et al. (1997) recorded 10 species from the island (8 Amblyseiinae & 2 Phytoseiinae). This small island shows a high level of endemism. Thus, there was a need for further investigations concerning the phytoseiid mite fauna of La Reunion Island and this paper gives new data on this subject. MATERIAL AND METHODS Predatory mites were collected from various cultivated or uncultivated biotopes in 1996 and 1997, during different seasons. Predatory mites were collected by beating the foliage of host-plants over a black plastic plate (diameter: 50 cm) set on a wooden handle (GROUT, pers. comm.). This system allows a better locating of collected mites after beating. Mites were then gently transferred with a fine paintbrush into small vials containing 70% alcohol. For the majority of samples, except those collected on vegetable crops, a standard methodology was used. A sampling unit consisted of five beatings of the vegetation for a given locality and * Centre International de Recherche Agronomique pour le Developpement (CIRAD) - Departement des productions fruitieres et horticoles (FLHOR), Laboratoire d'entomologie, Station de Bassin Martin, B.P. 180, Saint-Pierre cedex, La Reunion, France. ** Agricultural Research Council- Plant Protection Research Institute, Private Bag Xl34, Pretoria 000 I, Republic of South Africa. *** Ecole Nationale Superieure Agronomique (ENSAM), UFR d'ecologie animale et de Zoologie agricole, Laboratoire d' Acarologie, 2 Place Pierre Viala, Montpellier cedex 01, France.

3 date. Mites were cleared with lactic acid, mounted on slides using Hoyer's medium and then identified using a phase contrast microscope. Specimens of each species are deposited in the mite collections of the three institutes to which the four co-authors belong. Numbers at the end of each collecting locality refer to S. QUILICI's collection (RQ) or to J.-F. V A YSSrERES' collection (RVA). The following abbreviation are used in this manuscript: F for female, M for male and N for nymphs. RESULTS AND DISCUSSION Fourteen phytoseiid species newly recorded for La Reunion Island are mentioned (10 Amblyseiinae, 2 Phytoseiinae & 2 Typhlodrominae). This brings to 23 the number of phytoseiid species known from La Reunion Island. Amblyseiinae Amblyseius herbicolus (Chant) Typhlodromus (Amblyseius) lzerbicolus CHANT, 1959: 84; Amb/yseius /zerbico/us, DANESHVAR & DENMARK, 1982: 5; McMURTRY & MORAES, 1984: 34; DENMARK & MUMA, 1989: 59. Amb/yseius de/eoni, MUMA & DENMARK, in MUMA et a/., 1970: 68 (synonymy, in agreement with DANESHVAR & DENMARK, 1982: 5); Amb/yseius impactus, CHAUDRI, 1968 (DANESHVAR & DENMARK, 1982: 5). This species can be distinguished by the following combination of characters: Dorsal shield smooth weakly-sclerotized with setal arrangement typical for Amblyseius; setae z2, z4, z5, Z1, S2, S4, S5 and mostj setae minute; setae j 1, j3, s4, Z4 and Z5 whiplike and long to very long; ventrianal shield elongate and vase-shaped, with 3 pairs of preanal setae and a pair of distinct pores; elongate fundibuliform spermathecal cervix with a greatly swollen atrium; L-shaped spermatodactyl with a weakly-bifurcate toe on the foot; leg IV with three long macrosetae. SPECIMENS EXAMlNED: Colimac;ons, Dec. 31, 1996, on Prunus persica (L.) (RQ 3329); Sans-Souci, April 16,1997,1 FonLantanacamaraL.(RQ3193)and4F on Litsea chinensis Lam. (RQ 3199); Petite France, 98 Aprill6, 1997,2 F on Zea mays L. (RQ 3203) and 1 F on Cryptomeria japonica (L.f.) D. Don (RQ 3207); Mare a Poule d'eau, Jan. 21, 1998, 1 F on Tetranychus sp., on Sechium edule (Jacq.) Sw. (RVA 594). This species seems very common in spider mite and false spider mite infestations. Amblyseius largoensis (Muma) Amblyseiopsis /argoensis MuMA, 1955: 266; GARMAN, 1958: 76; Amb/yseius largoensis, EHARA, 1959: 293; MuMA et a/., 1970: 69; DENMARK & MUMA, 1973: 238; 1989: 55; ScHICHA, 1981b: 105; McMURTRY & MORAES, 1984: 34; Typh/odromus (Amblyseius) /argoensis, CHANT, 1959: 96; Amblyseius largoensis (MUMA), DELEON, 1966: 90. This species can be recognized by the following combination of characters: Dorsal shield smooth weakly-sclerotized with setal arrangement typical for Amblyseius; setae z2, z4, Zl and S2 minute, equal to one-another; setae j I, j3, s4, Z4 and Z5 whiplike and long to very long; remaining setae minute; elongate and vase-shaped ventrianal shield with lateral margins flaring markedly at anus to make shield widest at this point, with 3 pairs of preanal setae and a pair of pores; spermatheca with parallel-sided cervix; leg IV with 3 long macrosetae; spermatodactyl L-shaped, but with a small closed-angle. For the collection data and remarks on this species see QuiLICI et al. (1997). Amblyseius neolargoensis VAN DER MER WE Amblyseius (Amb/yseius) neo/argoensis V AN DER MER WE, 1965: 59. The dorsal setae of La Reunion specimens are shorter than those of the South African specimens, placing it in the range of A. largoensis (Muma) and A. herbicolus (Chant). However, the spermatheca and position of preanal pores are typical of A. neolargoensis. This species can be distinguished by the following combination of characters: Dorsal shield smooth, setal arrangement typical for Amblyseius, setaejl,j3, s4, Z4 and Z5 long to very long with the rest very short; peritremes reach antero-lateral to setaej3; ven-

4 trianal shield with preanal pores almost between setae JV2, as opposed to closely associated with and posteriad of setae JV2 in A. largoensis and A. herbicolus; spermatheca with cervix slender and almost parallel-sided, as opposed to broader and parallelsided in A. largoensis and flared towards vesicle in A. herbicolus; fixed chelicera! digits with 9 teeth in La Reunion specimens (as opposed to 11 in the South African specimens) and movable digit with 3 or 4 teeth; macrosetae present on Sgel, 11, Ill and IV, Sti Ill and IV and StiV. SPECIMENS EXAMINED: Sainte-Marie, April 24, 1997, 1 F on Sida sp. (RQ 3641); Bassin Plat, Jan. 24, 1998,3 F on Tetranychussp., on Sechium edule (Jacq.) Sw. (RVA 623). Amblyseius tamatavensis Blommers Amblyseius tamatavensis Biommers, 1974: 144; ScHICHA, 1981a: 40; DENMARK & MUMA, 1989: 13; A. maai, TSENG, 1976: 123 (Synonymy, according with DENMARK & MuMA, 1989: 13); A. aegyptiacus, DENMARK & MATTHYSSE, 1981, in MATTHYSSE & DENMARK, 1981 : 343 (Synonymy, in agreement with DENMARK & MuMA, 1989: 13). This species belongs to the tamatavensis group within the sub genus Amblyseius (DENMARK & MuMA, 1989). It can be distinguished by the following combination of characters: Dorsal shield smooth with setal arrangement typical for Amblyseius; setae z2, z4, Z1, S2, S4, SS and mostj minute; setaej1,j3, s4, Z4 and Z5 whiplike and long to very long; setae s4, Z4 and Z5 and macrosetae on leg IV very long, with dimensions between those of A. anomalus Van der Merwe and A. obtusus Koch; ventrianal shield smooth, moderately elongate and perfectly coat of arms-shaped, with 3 pairs of preanal setae and a pair of very distinct pores; elongate fundibuliform spermathecal cervix with a ductus major making an elongate and enlarged vesicle just under the atrium; L-shaped spermatodactyl with a weakly-bifurcate toe on the foot. SPECIMENS EXAMINED: Bassin Plat, Dec. 11, 1996, 1 F on Carica papaya L. (RQ 3312); Entre-Deux, March 11, 1997, 1 F on Parthenium hysterophorus L. (RQ 3607); western area (Savannah, Etang-Sale), 99 April to June, 1997, 1 F, 2 Non Mangifera indica L. (RQ 3711). This species is known from Madagascar and Nigeria (DENMARK & MuMA, 1989) and from various provinces of South Africa (EL-BANHAWY, 1997). In Nigeria, it was found associated with Tetranychus neocaledonicus Andre, Oligonychus gossypii (Zacher) and Brevipalpus californicus (Banks) (MATTHYSSE & DENMARK, 1981). In Madagascar, it has been collected on Citrus limon (L.) Burm., Phaseolus sp., Leonotis sp. and Ipomoea sp. (DENMARK & MuMA, 1989), while it was found occasionally on citrus in the Natal and Western Cape provinces of South Africa (EL BANHAWY, 1997). In the laboratory, A. tamatavensis has been successfully reared on Oligonychus coffeae (Nietner) and T neocaledonicus plus pollen and honey (BLOMMERS, 1976). Euseius hima (Pritchard & Baker) Amb/yseius (Amb/yseius) hima PRITCHARD & BAKER, 1962: 257; BLOMMERS, 1976: 89. Although the preana1 setae of this species are not transversely aligned, MoRAEs et al. (1989) considered it as a Euseius sp., as it fits all the other features of the genus, as defined by McMURTRY (1983). This species may be recognized by the following characters: Dorsal shield slightly reticulated with most setae smooth and equal to subequal in length, except for setae Z5 which are the longest and slightly serrated and J5 the shortest; lateral setae slightly longer than the dorso-central setae; peritremes reach to level of setae z2; spermatheca with proximal two-thirds of cervix broad but suddenly narrows before it joins the vesicle; leg IV with 3 macrosetae, howevet~ those on the tibia and genu are not distinctly long. SPECIMENS EXAMINED: Hauts de Trois-Bassins, Chemin forestier, March 26, 1997, 1 F on Rubus alcaefolius L. (RQ 3185); Les Colima9ons, March 26, 1997, 1 F, 1 M on R. alcaefolius (RQ 3191); Salazie, April 30, 1997, 3 F on Solanum auriculatum Aiton (RQ 3208 & 3212), 2 F on R. alcaefolius (RQ 3209), 1 F on Lantana camara L. (RQ 3210); Piton Sainte Rose, May 28, 1997, 1 F on L. camara (RQ 3230).

5 Euseius ovaloides (Blommers) SPECIMENS EXAMINED: Les Colima9ons, Dec. 31, 1996, 1 F on Prunus persica (L.)(RQ 3329). Amblyseius (Amblyseius) ova/aides BLOMMERS, 1974: 147; Amb/yseius ova/aides, SCHICHA & GUTIERREZ, 1985: 177. This species belongs to the genus Euseius and can be distinguished by the following combination of characters: Dorsal shield reticulate anterolaterally with 17 pairs of short setae, except j 1 and moreover Z5; ventri-anal shield constricted anteriorly, with arrangement of the three preanal setae characteristic of Euseius and one pair of visible pores; spermatheca with major duct ill-defined, a small atrium, a tubular cervix, suddenly widened terminally; 3 macro setae on leg IV and 2 on leg Ill. SPECIMENS EXAMINED: La Confiance, April 30, 1997, 3 F, 2 M, 1 Non Rubus alcaefolius L. (RQ 3216); Bassin Plat, Dec. 11, 1996, 4 F, 3 N on Carica papaya L. (RQ 3312); Bassin Martin, Dec. 11, 1996, 1 Non Vitis vinifera L. (RQ 3314) and 3 F, 3 Non C. papaya (RQ 3315); Bass in Plat, Jan. 8, 1997, 3 F on Zea mays L. (RQ 3326); Les Colima9ons, Dec. 31, 1996,2 F on Prunus persica (L.) (RQ 3329); Ravine des Cabris, Jan. 15, 1997, 1 F on Terminalia catappa L. (RQ 3338) and 1 F ori Syzygium cumini (L.) (RQ 3340); Entre Deux, March 11, 1997, 3 F on Parthenium hysterophorus L. (RQ 3607) and 2 F on Ageratum conyzoides L. (RQ 3611); Sainte-Marie, April 24, 1997, 2 F on Sida sp. (RQ 3641), 2 F on Panicum maximum L. (RQ 3646); Grande Chaloupe, April24, 1997,4 F, 1 Non Phyllanthus sp. (RQ 3648), 1 F, 1 Non Jatropha cure as L. (RQ 3650). Euseius rhusi (Van der Merwe) Amblyseius (Amblyseius) rhusi VAN DER MERWE, 1965: 63. Euseius rhusi is characterized by the almost smooth oval dorsal shield with all the dorsal setae very short ( m), except for setae j 1 (28 11m) and Z5 (25 11m) which are the longest; peritremes reach antero-lateral to setae j1; spermatheca with proximal fourth buldged and the rest very slender but flared before it joins the vesicle; fixed chelicera! digit with 3 teeth and the movable digit with 1 tooth; leg IV bears 3 macrosetae. Kampimodromus spinosus (Meyer & Rodrigues) Amblyseius spinosus MEYER & RODRIGUES, 1966: 224. The reticulated, rectangular dorsal shield with most dorsal setae serrated, except for setae j1, j4, j5, z5 and J5 (S4 absent); setae Z5, Z4, s4, S2, S4, j3 and z4 (in that order) which are much longer than rest of dorsal setae; the spermatheca with lopsided, swollen cervix which suddenlly narrows and then flares towards the vesicle; the fixed chelicera! digits bearing 9 teeth and the movable digits bearing 3 teeth and leg IV bearing 2 macrosetae (Stand Sge) terminating in small knobs, distinguishes this species from the other species in this genus. SPECIMENS EXAMINED: Salazie, April30, 1997, 3 F, 1 Non Lantana camara L. (RQ 3210); Cilaos, Feb. 19, 1997, on L. camara L. (RQ 3182). Neoseiulus barkeri Hugues Neoseiulus barkeri HUGHES, 1948: 142 & 1976: 343; Typhlodromusbarkeri, NESBITT, 1951: 35; Typhlodromusbarkeri, CHANT, 1959: 61; Amblyseius barkeri, ATHIAS-HENRIOT, 1961: 440; A. mckenziei, SCHUSTER & PRITCHARD, 1963: 268. This species can be identified by the following combination of characters: Dorsal shield sclerotized, mostly smooth throughout, anterolaterally with few striae; smooth and short setae, except Z4 and Z5 which are longer and serrated; ventrianal shield only slightly longer than wide, subpentagonal, subquadrate in the preanal area, with lateral margins convex, 3 pairs of preanal setae and a pair of small pores between and caudad to the third setae; spermatheca with broad major duct, bifid and narrow atrium as wide as cervix base and almost tube-like, or truncate cone-shaped cervix, which may be bulged before it joins the atrium, with 1 side straight and the other curved; leg IV with 1 macrosetae on basitarsus; ventrianal shield of male with 4 pairs of preanal setae and a pair of small pores.

6 SPECIMENS EXAMINED: Entre-Deux, Jan. 29, 1998, 1 F on Tetranychus evansi Baker & Pritchard, on Luffa acutangula (L.) Roxb. (RVA 590); Piton Saint-Leu, March 3, 1998, 1 F on Tetranychus rooyense Meyer on Cucumis anguria L. (RVA 631). This species has been used largely in the last twenty years in experiments for biocontrol of thrips, particularly the onion thrips Thrips tabaci Lindeman on glasshouse cucumber (HANSEN & GEYTI, 1987; HAN SEN, 1988; BRODSGAARD & HANSEN, 1992) and the western flower thrips, Frankliniella occidentalis Pergande. It has been commercially mass-produced in Europe since the beginning of the eighties (RAMA KERS & LIEBURG, 1982). Selection for non-diapause strains was also carried out within the species (VAN HouTEN et al., 1995). As a thrips predator, it is known to be more effective on first stage larvae of its prey (BAKKER & SABELIS, 1986). This species has not been officially introduced in La Reunion within a classical biocontrol program. However, as it is commercially available in Europe, its presence on the island might be the result of releases of mass-produced mites on crops. Neoseiulus bayviewensis (Schicha) For the collection data and remarks on this species see QUILICI et al. (1997). Neoseiulus fallacis (Garman) Iphidulusfa/lacis GARMAN, 1948: 13; Typhlodromusfa/lacis, NESBITT, 1951 : 24; Amb/yseiusfal/acis, ATHIAS-HENRIOT, 1958b: 34; Typhlodromus (Amblyseius) fallacis, CHANT, 1959: 74; Amblyseius (Typhlodromopsis) fallacis, MuMA, 1961: 287. The characters of La Reunion specimens of N fallacis are: Dorsal shield reticulated; elongate dorsal setae and setae Z4 and Z5 longest and serrated; other setae moderately long; ventral shields reticulated; sterna! shield with posterior margin straight and ventrianal shield triangular with elliptical preanal pores close together almost between setae JV2; ventrianal shield of males with three pairs of preanal setae; spermatheca cup-shaped; fixed chelicera! digit with 3 subapically and 2 proximal teeth and movable digit with 3 teeth; leg IV with one long macroseta. SPECIMENS EXAMINED: Bras-Long/Entre-Deux, Jan. 29, 1998, 14 F, 2 M, 1 N on Luffa acutangula (L.) Roxb. (RVA590, 595 & 633). Amblyseius bayvie1vensis SCHICHA, 1977: 394. According to ScHICHA (1977) this species is closely related to N bellinus (Womersley) and N thwaitei (Schicha). However, the following combination of characters distinguishes it from these two species: Dorsal shield smooth, as opposed to completely reticulated in N bellinus and only laterally reticulated in N thwaitei; sterna! shield with three pairs of setae in N bayviewensis and N bellinus, but on the interscutal membrane in N thwaitei; fixed and movable chelicera! digits with three and two teeth, respectively in N bayviewensis and N thwaitei while N bellinus has only one tooth on the movable digit; cervix of spermatheca bell-shaped; leg IV with 2 short, pointed macrosetae on Sge and Sti and a long macroseta (almost twice the length of latter 4) on St, with a small knob distally; N thwaitei has only 2 macrosetae with the 1 on Sge knobbed distally (Sti absent); N bellinus has only 1 long pointed macroseta on St. Neoseiulus scapilatus (Van der Merwe) Amblyseius scapilatus VAN DER MERWE, 1965: 71. VAN DER MERWE (1965) and UECKERMANN & LooTS (1988) considered setae R1 situated on the dorsal shield as one of the distinguishing features of this species. However, subsequent collections included specimens with Rl on the interscutal membrane. N scapilatus can be differentiated by the following combination of characters: Lightly imbricated dorsal shield with lateral setae slightly longer to twice as long as dorsocentral setae, setae Z4 and Z5 are slightly serrated, equally long and also the longest setae; peritremes reach antero-lateral to setae jl; spermatheca with atrium buldged, proximal third of cervix slender and the rest a broad tube which flares before it joins the vesicle; fixed chelicera! digit with 3 teeth and the movable digit with 1 tooth; leg IV with 2 macrosetae, absent from Sti.

7 SPECIMENS EXAMINED: Les Colimac;ons, March 26, 1997, 1 F on Litsea chinensis Lam. (RQ 3187). Neoseiulus teke (Pritchard & Baker) Amblyseius (Amb/yseius) teke PRITCHARD & BAKER, 1962: 239; VAN DER MERWE, 1968: 141. This species exhibits the following characters: Dorsal shield reticulated, with all setae long and serrated, except for setae j 1 and J5; ventral shields also reticulated; peritremes slightly shorter in the Reunion specimens, reaching antero-lateral level of setae j3 oppose to antero-lateral level of j 1 in the African specimens; spermatheca similar to that of N. scapilatus; fixed chelicera! digit with 4 teeth and the movable digit with 2 teeth; leg IV with 1 macroseta on basitarsus. SPECIMENS EXAMINED: Hauts de Trois-Bassins, Chemin forestier, March 26, 1997, 1 F on Solanum auriculatum Aiton (RQ 3184); Sans Souci, April16, 1997, 1 N on Rubus alcaefolius L. (RQ 3195); Saint Philippe, May 14, 1997, 2 F, 2 M, 1 NonS. auriculatum (RQ 3220); Sainte-Marie, April24, 1997, 1 F on Schinus terebenthifolius Raddi (RQ 3636); Piton Saint-Leu, March 3, 1998, 4 F on Tetranychus rooyense Meyer, on Cucumis anguria L. (RVA 631). This species is present in South Africa (V AN DER MERWE, 1968; EL-BANHAWY, 1997), where it is found occasionally on citrus in the Natal province (EL BANHAWY, 1997). Paraphytoseius multidentatus Swirski & Shechter Paraphytoseius mu/tidentatus SWIRSKI & SHECHTER, 1961 : 113; BLOMMERS, 1976: 87; MATTHYSSE&DENMARK, 1981 : 342; McMuRTRY & MoRAES, 1984: 27; MoRAEs & MESA, 1988: 82. Amblyseius (Paraphytoseius) multidentatus EHARA, 1967: 77; EHARA & LEE, 1971: 69; EHARA & BHANDHUFALCK, 1977: 79. Paraphytoseius bhadrakaliensis (Gupta), P. narayanani (Ehara & Ghai), P nicobarensis (Gupta), P. orientalis (Narayanan, Khaur & Ghain), P parabilis, P. santurcensis DeLeon, P. subtropicus (Tseng) and P. urumanus (Ehara) (Synonymies in agreement with MATTHYSSE & DENMARK, 1981: 342) This species can be identified by the following combination of characters: Dorsal shield with pores near z5 very pronounced; large serrate setae j1, j3, Z4, Z5, s4, r2, Rl long to very long; remaining setae smooth and short; ventrianal shield elongate with a pair of minute pores; leg IV with 4 distinct rod-shaped macrosetae; spermatheca with a long and slender major duct, a knob-like atrium and a platter-shaped cervix; spermatodactyl short. SPECIMENS EXAMINED: Hauts de Trois-Bassins, Chemin forestier, March 26, 1997, 1 M, 4 N on Rubus alcaefolius L. (RQ 3185); Les Colimac;ons, March 26, 1997, 2 F, 1 N on R. alcaefolius (RQ 3191 ); Sans Souci, April16, 1997, 1 F on R. alcaefolius (RQ 3195); Petite France, April 16, 1997, 1 F on R. alcaefolius (RQ 3202); Salazie, April 30, 1997, 1 F, 1 M on R. alcaefolius (RQ 3209); Piton Sainte-Rose, May 28, 1997, 2 F on Schinus terebenthifolius Raddi (RQ 3225); Sainte-Rose, May 28, 1997, 1 F on Lantana camara L. (RQ 3231), 5 F, 1 N on R. alcaefolius (RQ 3232). Phytoscutus reunionensis (Ueckermann & Loots) Amblyseius (Trochoseius) reunionensis UECKERMANN & LOOTS, 1985: 132. CHANT & McMurtry (pers. comm.) place PRIT CHARD & BAKER's (1962) lphiseius (Trochoseius) species under the genus Phytoscutus. Phytoscutus reunionensis can be differentiated from the other species in the genus by the following combination of characters: setae z2 longer than distances to setae z4, but shorter than z2 of P. eugenus (Ueckermann & Loots); ventrianal shield squarish, reticulated and bears three pairs of setae; opisthogastric integument with 3 pairs of setae (ZV1, ZV3 and JV4), N5 absent; 2 pairs of metapodal shields present with one very small and the larger one ring-like; cervix of spermatheca funnel-shaped; macrosetae present on Sge 11, Ill and IV, Sti Ill and IV and St IV. For the collection data and remarks on this species see Quruc1 et al. (1997).

8 Phytoseiulus persimilis Athias-Henriot, 1957 Phytoseiulus persimilis ATHIAS-HENRIOT, 1957: 347; Phytoseiulus riegeli, DossE, 1958: 48; Phytoseiulus tardi, LoM BARDINI, 1959: 1. This species belongs to the genus Phytoseiulus and can be identified by the following combination of characters: Dorsal shield lightly or moderately sclerotized and creased or imbricate; dorsal setae j3, z4, s4, Z1, Z4, Z5j4, j5 and j6 long and weakly serrated, the remaining dorsal setae being short to very short; ventrianal shield oval, creased and with a pair of minute pores and no preanal setae; spermatheca with a cervix vesicular, flaring towards the vesicle, its proximal part swollen, atrium minute, major duct cylindrical; 3 distinguishable macrosetae on the leg IV, St IV being smooth; spermatodactyl of typical form, foot terminal, heel obscure, and lateral process small, but with toe large and spatulate; ventrianal shield of the male with 3 pairs of preanal setae. SPECIMENS EXAMINED: Les Colimac;:ons, March 26, 1997, 1 F, 1 M on Litsea chinensis Lam. (RQ 3187); Bassin Plat, Oct. 22, 1996, 3 F, 1 M on Leucaena leucocephala (Lamarck) de Wit (RQ 3334); Ligne Paradis, Nov. 28, 1997, 3 M on Tetranychus sp., on Lycopersicon aesculentum L. Roma cv. (RVA 573); La Possession, Dec. 3, 1997, 3 F, 1 M, 1 Non Tetranychus sp., on Citrullus lanatus (Thunb.) Sugar baby cv. (RVA 575); Ligne Paradis, Nov. 20, 1997, 1 F on Tetranychus urticae Koch, on L. aesculentum var. Roma (RVA 576); Entre-Deux, Jan. 29, 1998, 6 F, 2 M, 1 Non Tetranychus evansi Baker & Pritchard, on Luffa acutangula (L.) Roxb. (RVA 605); Saint-Joseph, Oct. 25, 1997, 4 F on thrips and tetranychids, on Solanum melongena L. (RVA 607); Montvert-les-Bas, Sept. 9, 1997, 4 F, 1 N, on Cucumis sativus L. (RVA 608); Entre-Deux, Jan. 29, 1998, 1 FonT evansi, on L. acutangula (RVA 590). Proprioseiopsis tulearensis (Blomrners) Amblyseius (Proprioseiopsis) tulearensis BLOMMERS, 1976: 100. P tulearensis belongs to the genus Proprioseiopsis Muma, 1961, in which setae J2 are absent and genu II bears eight setae. This species can be identified by the following combination of characters: Dorsal shield brownish and smooth, not exceptionally sclerotized; setae short except s4, Z4 and Z5; ventrianal shield midly imbricate, moderately elongate, coat of armsshaped, with a slight constriction in the lateral part of the anal area, 3 preanal setae and small pores in the middle; Spermatheca with a long major duct, constricted in the middle, a short atrium and a cervix caliciform; 3 moderately long macrosetae on leg IV and shorter ones on genu II and Ill. SPECIMENS EXAMINED: Hauts de Trois-Bassins, Chemin forestier, March 26, 1997, 1 F on Solanum auriculatum Aiton (RQ 3184); Sans Souci, April16, 1997, 1 F on Rubus alcaefolius L. (RQ 3195); Petite France, April16, 1997, 2 F on R. alcaefolius (RQ 3202); Basse Vallee, May 14, 1997, 1 F on Litsea chinensis Lam. (RQ 3218); Bassin Plat, Jan. 8, 1997, 6 F on Capsicum frutescens L. (RQ 3319) and 3 F on Solanum nigrum L. (RQ 3320); western area (Savannah, Etang-Sale), April to June, 1997, 1 F on Mangifera indica L. (RQ 3711). Typhlodromips reptans (Blomrners) Amblyseius (Amblyseius) reptans BLOMMERS, 1974: 145. This species belongs to the genus Typhlodromips and can be recognized by the following combination of characters: Dorsal shield laterally reticulate with setae rather short except Z4 and Z5, which are moderately long and serrated; ventrianal shield pentagonal with 3 pairs of preanal setae and 2 distinct pores; spermatheca with a short atrium and a cervix long and slender, parallel-sided for most of its length; 3 long macrosetae on leg IV; 2 macrosetae on leg Ill and one on genu II and I longer than normal setae but more dagger-like; ventrianal shield fused with peritremal shields of the male with 3 pairs of preanal setae and 5 pairs of pores; spermatodactyl process L-shaped. SPECIMENS EXAMINED: Sans-Souci, April 16, 1997, 1 F on Lantana camara L. (RQ 3193), 5 F, 1 M on Rubus alcaefolius L. (RQ 3195); Salazie, April 30, 1997, 1 F on R. alcaefolius (RQ 3209), 1 F on Solanum auriculatum Aiton (RQ 3212); Piton Sainte-Rose,

9 May 28, 1997, 1 F on L. camm a (RQ 3230); Sainte Rose, May 28, 1997, 2 F on L. camara (RQ 3231 ), 1 F on R. alcaefolius (RQ 3232). Phytoseiinae Phytoseius (Pennaseius) amba Pritchard & Baker Phytoseius (Pennaseius) amba PRITCHARD & BAKER, 1962: 224; BLOMMERS, 1976: 85; Phytoseius (Phytoseius) amba, DENMARK, 1966: 49; Typhlodromus (Pizytoseius) amba, VAN DER MER WE, 1968: 101; Phytoseius amba, SWIRSKI & RAGUSA, 1978: 408; Pennaseius amba, MATTHYSSE & DENMARK, 1981: 352. This species belongs to the P hongkongensis group, according to DENMARK ( 1966), and can be recognized by the following combination of characters: Dorsal shield slender and smooth with dorsal setae j 1, j3, z3, Z4, Z5, s4, s6 and r3 long to very long and serrated, the rest are smooth and very short; peritremes reach antero-lateral to setae j3; slender ventrianal shield constricted laterally, with preanal pores; sterna! shield with posterior margin slightly convex; spermatheca with a broad major duct, short broad atrium, cervix slender proximally but strongly flared towards vesicle; fixed and movable chelicera! digits with 2 and 1 teeth, respectively; leg IV with four macrosetae, those on St, Sti and Sge are irregularly expanded and distally knobbed (variable) but the one on the tarsus is only knobbed distally. SPECIMENS EXAMINED: Petite France, April16, 1997, 4 F on Rubus alcaefolius L. (RQ 3202). It is known from Zai:re, Ruanda-Burundi, South Africa, Zimbabwe, Madagascar, Nigeria and Kenya, where it was collected on various plants. Phytoseius (Phytoseius) crinitus Swirski & Shechter Phytoseius (Dubinine/lus) crinitus SwiRSKI & SHECHTER, 1961: 102; Phytoseius crinitus, AMITAI & SwrRSKI, 1966: 21; SWIRSKI & AMITAI, 1966: 11; DENMARK, 1966: 66. This species is one of the two species belonging to the crinitus group, according to DENMARK (1966), and was classed by this author in the subgenus Dubininellus. However, CHANT & McMURTRY (1994) 104- recognize only 3 species groups in this genus and consider Phytoseius (Dubininellus) Wainstein, 1959 as a synonym of the horridus species group Denmark. This species can be distinguished by the following combination of characters: Dorsal shield chitinized, reticulated and bearing 15 pairs of setae; setae s4 much longer than the remaining setae of the dorsal shield; s4 > Z4 > Z1 > Z5 and all these setae fiat, broad, serrated-plumose, with a long slit or line dividing each lengthwise; the lateral margins of the ventrianal shield are constricted posteriad of the 3 pairs of preanal setae; spermatheca elongated with cervix longer than broad, slightly constricted before the vesicle, with a bulbous atrium, thick major duct, large receptacle and minor duct; leg IV with three spatulate macrosetae; short spermatodactyl L-shaped with a small closed-angle. SPECIMENS EXAMINED: Hauts de Trois-Bassins, Chemin forestier, March 26, 1997, 2 F on Rubus alcaefolius L. (RQ 3185); Salazie, April 30, 1997, 1 F on R. alcaefolius (RQ 3209); Ravine des Cabris, Jan. 15, 1997, 1 F on Rubus idaeus L. (RQ 3341). P crinitus was previously known only from Hong Kong, where it was recorded on various plants: Psidium guajava L., Fortune!la sp., Ficus hirta Vahl, Celtis chinensis Bunge, Rhodomyrtus tomentosa (Aiton) Hassk., and Homalium conchinchinensis (Lour.) Druce (SWIRSKI & SHECHTER, 1961; AMIT AI & SWIRSKI, 1966; DENMARK, 1966; SWIRSKI & AMITAI, 1966). Phytoseius (Phytoseius) intermedius Evans & McFarlane Plzytoseius (Dubininellus) intermedius EVANS & McFAR LANE, 1961: 587;DENMARK, 1966:70;CJUPTA, 1977:636. Phytoseius (Phytoseius) yira, PRITCHARD & BAKER, 1962: 227. Phytoseius (Phytoseius) intermedius, (EVANS & McFAR LANE) EHARA, 1972: 170; EHARA, 1975: 27; BLOMMERS, 1976: 82; PRASAD, 1974: 171. Most setae on the elongated dorsal setae are serrated, except for setae j4, j5, j6, J5 and z5, setae s4, s6, Z4 and Z5 are the longest, setae J2 and R 1 are absent; peritremes reach antero-lateral to setae j1; vaseshaped ventrianal shield without preanal pores; leg IV devoid of macrosetae.

10 For the collection data and remarks on this species see QUILICI et al. (1997). Platyseiella longicervicallis (Moraes & McMurtry) Paraphytoseius longicervicallis MoRAEs & McMURTRY, 1989, in Moraes et al., 1989: 131. Platyseiella longicervicallis differs from the other species in this genus in that setae r3 and Nl are situated on the interscutal membrane and ventrianal shield, respectively, ventrianal shield without preanal pores. This species and P platypilis (Chant) have the absence of setae J2 and Rl in common. For the collection data and remarks on this species see QUILICI et al. (1997). Typhlodrominae Kuzinellus scytinus (Chazeau) Typhlodromus scytinus CHAZEAU, 1970: 6. This species belongs to the genus Kuzinellus of the tribe Paraseiulini Wainstein (CHANT & McMURTRY, 1994) and can be recognized by the following combination of characters: Dorsal shield toughly sclerotized, squamose on the opisthosoma; setae smooth and medium-sized, except Z4 and Z5 which are longer, serrated and distally dilated in a subcircular lobe; ventrianal shield smooth, subpentagonal with 4 pairs of preanal setae and a pair of central pores; Spermatheca with a major duct enlarged distally, an enlarged horseshoe-shaped atrium and a calice with a long pedoncule and enlarged distally; one macroseta on basitarsus IV with capitate extremity. SPECIMENS EXAMINED: Cilaos, Feb. 19, 1997, 1 F on Lantana camara L. (RQ 3182); Hauts de Trois Bassins, Chemin forestier, March 26, 1997, 2 F on Sida sp. (RQ 3653) Clavidromus transvaalensis, MuMA & DENMARK, 1968: 238; MuMA et al., 1970: 128; Typhlodromus transvaalensis, CHANT & BAKER, 1965: 5; SCHICHA, 1981a: 36. Typhlodromus jackmickleyi, DELEON, 1958: 75; VAN DER MERWE, 1968: 23 (Synonymy, according to MuMA & DENMARK, 1968). Typhlodromus pectinatus, ATHIAS-HENRIOT, 1958a: 179 (Synonymy, according to MUMA & DENMARK, 1968). This species is characterized by the following characters: Reticulated dorsal shield with all setae rather long, serrated and knobbed or blunt distally, except for setae SS and J5 which are very short and smooth; peritremes reach antero-lateral of j3; sterna! shield with two pairs of setae and posterior margin with a prominent lobe; ventrianal shield with three pairs of setae and no preanal pores; fixed and movable chelicera! digits with 2 and 1 teeth respectively; spermatheca with a kidney-shaped atrium, cervix proximally slender but gradually flare towards the vesicle; genu II with 8 setae and leg IV with 3 distally knobbed macro setae. SPECIMENS EXAMINED: La Confiance, April 16, 1997, 1 F on Rubus alcaefolius L. (RQ 3216). Described in the genus Kampimodromus by NEs BITT (1951), this species is now assigned to the subgenus Anthoseius De Leon of the genus Typhlodromus, and the species group transvaalensis Schicha & Corpuz-Raros by CHANT & McMURTRY (1994). T. transvaalensis appears to be widely distributed (MuMA & DENMARK, 1970; CHANT & McMURTRY, 1994). In South Africa, it is found occasionally on citrus in the Northern Province of Zebediela (EL BANHAWY, 1997). According to MuMA & DENMARK (1970), the species is unusual, as it can be found on the ground in litter, above ground on various species of trees and shrubs, and occasionally on mammals. It prefers habitats with decaying organic matter and nothing is known about its food habits. ACKNOWLEDGEMENTS Typhlodromus (Anthoseius) transvaalensis (Nesbitt) Kampimodromus transvaalensis NESBITT, 1951: 55. Neoseiulus transvaalensis, MUMA, 1961: 295. To Serge GLENAC (CIRAD-FLHOR Reunion) who collected the majority of the specimens; to Marie-Stephane TIXIER and Philippe AuGER (ENSAM-INRA, France) for reading carefully and giving valuable comments on the manuscript; to

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