Number 52: 1-6 ISSN X January 1998 A REVIEW OF THE GENUS SPINIPHORA MALLOCH (DIPTERA, PHORIDAE) FROM THE RUSSIAN FAR EAST. M.V.

Transcription

1 Number 52: 1-6 ISSN X January 1998 A REVIEW OF THE GENUS SPINIPHORA MALLOCH (DIPTERA, PHORIDAE) FROM THE RUSSIAN FAR EAST M.V. Michailovskaya Mountain-Taiga Station, Far Eastern Branch, Russian Academy of Sciences, Gornotayozhnoe, Primorskii krai, , Russia. Two new species Spiniphora dichotoma sp.n. (Primorskii krai) and S. leleji sp.n. (Kuril Islands) are described. A key to the males of the 3 recorded from Russian Far East species of Spiniphora is given. KEY WORDS: Diptera, Phoridae, new species, Far East. М.В.Михайловская. Обзор рода Spiniphora Malloch (Diptera, Phoridae) c Дальнего Востока России // Дальневосточный энтомолог N 52. С Описаны два новых вида: S. dichotoma sp.n. (Приморский край) и S. leleji sp.n. (Курильские острова). Дана определительная таблица самцов трех известных с Дальнего Востока России видов рода Spiniphora. Горно-таежная станция, Дальневосточное отделение Российской Академии наук, Горнотаежное Приморского края, , Россия. INTRODUCTION Twenty species of the genus Spiniphora have been reported from Nearctic (5), Palaearctic (12) and Oriental (5) Regions (Borgmeier 1968; Disney 1991). Two species S. bergenstammi (Mik) and S. excisa (Becker) are Holarctic. Three 1

2 species (S. atricostata Schmitz, S. nipponensis Beyer and S. okinawa Borgmeier) are known from Japan (Schmitz 1941; Beyer 1958; Borgmeier 1962). During study of the phorid flies fauna of the Russian Far East three species of this genus were recognized. In my paper (Michailovskaya, 1986) S. excisa Becker was erroneously identified as S. bergenstammi (Mik). Two new species are described below. Holotypes and paratypes of new species are deposited in the collection of the Institute of Biology and Pedology, Vladivostok, Russia. KEY TO THE MALES OF THE FAR EASTERN SPECIES OF SPINIPHORA 1 Hind tibia with 4 bristles: 1 dorsal near middle, 2 anterodorsals and 1 anteroventral (Fig. 1) Palps large and with short bristles. Hypopygium as Figs S. excisa (Becker) Hind tibia with 3 bristles: 2 anterodorsals (the upper one at basal third, other subapical) and 1 anteroventral at middle (Fig. 2) Yellow species: antennae, thorax, abdomen, legs yellow or brownish yellow. Four dorsocentrals bristles. Scutellum with four bristles of equal length. Costal ratios 7.1:3.3:1. Costal cilia short - 0,06 mm (Fig. 3). Hypopygium as Figs 8, 9. The right side of epandrium with elongate surstylus and with membranose bifurcated process. Hypandrium as Fig S. dichotoma sp.n. Species largely dark in color: antennae, thorax, abdomen, legs black or dark brown. Six dorsocentrals bristles. Scutellum with four bristles of unequal length. Costal ratios 2.9:1.1:1 (Fig. 4). Costal cilia 0,13 mm. Hypopygium as Figs 11, 12. The right side of epandrium with short broad surstylus, inner margins which deeply incised. Hypandrium as Fig S. leleji sp.n. Spiniphora excisa (Becker, 1901) Figs 1, 5-7 MATERIAL. 15, 8, Russia: Primorskii krai, 18 km SE Ussuryisk, Gornotayozhnoe, VI 1996 (M.Michailovskaya); 25, 10, from the same locality, VIII 1996 (M.Michailovskaya). DISTRIBUTION. Russia: Primorskii krai. Europe, USA. REMARKS. The specimens collected by water traps and reared from a dead snails. Spiniphora dichotoma Michailovskaya, sp. n. Figs 2, 3, 8-10 MATERIAL. Holotype -, Russia: Primorskii krai, 18 km SE Ussuryisk, Gornotayozhnoe, 20.VII 1995 (M.Michailovskaya). Paratypes: 6, 8, the same locality, 20.VII 1995 (M.Michailovskaya); 12, 5, the same locality, reared from dead snails, 24.VII 1990 (M.Michailovskaya), one of the paratypes was dissected for the study of details. 2

3 Figs 1-4. Legs and wings of Spiniphora. 1, 2 hind tibiae; 3, 4 wings; 1 S. excisa; 2, 3 S. dichotoma sp.n.; 4 S. leleji sp.n. Scale = 0.1 mm DESTRIPTION. Male. Body length 3.2 mm. Frons dark brown with three reddish-yellow longitudinal striae: one in middle and two laterally. The anterolateral bristles on frons lower than pre-ocellars ones and this row of bristles concave. Third antennal segment light yellow, without darker apex, conical (0.38 mm) and about 2/3 eye length. Apical arista (0.48 mm long), pubescent. Palps yellow with 8-9 unequal bristles. Thorax yellowish-brown. Scutum with two pairs of dorsocentral bristles. Scutellum with four bristles of equal length. Mesopleurae bare. Venter of abdomen light-yellow. Tergites of abdomen black and yellow. II-V tergites yellow with black spots on the middle and laterally. VI tergite black with light hind margin. Tergite II with a cluster of the 8-10 of hairs on each side. Hind margin of the VI tergite with dorsal row of equal bristles. Hypopygium as Figs 8, 9 and largely brown with long yellowish anal tube. Right surstylus elongate, rounded at apex, with hairs. Lower it is long, thin faint unsclerotized lateral process which bifurcate posteriorly. Left surstylus short, broad with hairs. Hypandrium with two process, right forked (Fig. 10). Legs yellow. Fore tibia with dorsal bristle at 3

4 basal part and a longitudinal row of 7 spines below the bristles; mid tibia with a pair of bristles at basal fourth and one anterior bristle; hind tibia with three bristles: two anterodorsals (at basal third and subapical) and one anteroventral near middle (Fig. 2). Metatarsus of hind legs shorter than the next two segment together. Wing 2.25 mm long. Costal index Costal ratios 7.1 : 3.3 : 1. Costal cilia short 0.06 mm. A single axillary bristles. Wing membrane yellow. One hair is at base of the vein 3. All veins brown. Halters yellow. Female. Closely similar to male but has light yellow frons, third antennal segment smaller than in male and globose, tergites I-V of abdomen uniformly yellowish; Costal index 0.53, costal ratios 8.8 : 3.8 : 1. Body length 3.6 mm. ETYMOLOGY. The specific name refers to the characters of process on the right side of the epandrium. REMARKS. The new species most closely resembles the Japanese S. okinawa Borgmeier. However, the latter has black abdomen, the antero-laterals bristles at same level as the pre-ocellars, metatarsus of the hind legs longer than two next segments together, different costal ratios and anal tube short. The some specimens reared from a dead snails. Spiniphora leleji Michailovskaya, sp. n. Figs 4, MATERIAL. Holotype -, Russia: Kuril Islands, Kharimkotan, 8.VIII 1996 (A.Lelej). Paratypes - 2, Kuril Islands, Iturup, Ucromnaya bay 20.VIII 1996 (A.Lelej); one of the paratypes was dissected for the study of details. DESTRIPTION. Male. Body length 2.9 mm. Frons black (broad 0.48 mm, length side 0.28 mm). Pre-ocellar bristles on frons are a little higher than anterolaterals ones. The subglobose third antennal segment dark brown (length 0.23 mm; broad 0.20 mm). The subapical arista with short pubescence. Palps light brown, with 8-9 strong differentiated bristles. Thorax dark brown. Scutum with three pairs of dorsocentral bristles, anterior pair being a little shorter and thinner than posterior pairs. Scutellum with four unequal bristles. Abdomen with black tergites without light hind band. Venter dark brown. Each side of tergite II with cluster of the hairs. Hind margin of the tergite VI with dorsal row of the unequal bristles, which are a longer posterolaterally. Hypopygium largely dark brown and as Figs 11, 12. Right surstylus broad and little longer than left surstylus. The inner margin of the right surstylus with deeply split. Hypandrium (Fig. 13) with 2 very developed lobes, right forked. Anal tube yellow and short. Legs brown. Fore legs light. Fore tibia with 1 dorsal bristle and a longitudinal row of 8 spines below the bristles; mid tibia with a pair of bristles at basal part and one anterior bristle; hind tibia with 2 anterodorsals and 1 anteroventral bristles. Metatarsus of hind legs is longer than the next two segments together. Wing 2.4 mm long. Costal index Costal ratios 2.9 : 1.1 : 1. Costal cilia 0.13 mm long. Axillary ridge with 1 bristles. One hair is at base of the vein 3. All veins brown. Membrane tinged brown. Haltere with stem and knob largely brown. Female unknown. 4

5 Figs Hypopygium of Spiniphora. 5-7 S. excisa; 8-10 S. dichotoma sp.n.; S. leleji sp.n.; 5, 8, 11 hypopygium, left lateral; 6, 9, 12 hypopygium, right lateral; 7, 10, 13 hypandrium, ventral. Scale = 0.1mm ETYMOLOGY. This species dedicated to Dr. A.S. Lelej, who collected the type series on Kuril Islands. REMARKS. S. leleji sp.n. is most closely related to S. atricostata Schmitz. The latter has a shorter bristles on the palps, shorter costal cilia, different costal ratios, swollen costal vein, light band on the hind margin of the abdominal tergites, differences of detail in the hypopygium. 5

6 ACKNOWLEDGEMENTS I am grateful to Dr. A. S. Lelej (Institute of Biology and Pedolody, Vladivostok) who allow me to examine his specimens collected in Kuril Islands and review this manuscript. I wish to express my thank to Dr. B.V. Brown (County Museum of Natural History, Los Angeles) for sending me necessary papers. REFERENCES Beyer, E.M Drei neue Phoriden aus Japan und Finnland. Notulae Entomo-logicae 38: Borgmeier, T Versuch einer Uebersicht ueber die neotropischen Megaselia-Arten, sowie neue oder wenig bekannte Phoriden verschiedener Gattungen (Dipt. Phoridae). Studia Entomologica 5: Borgmeier, T A catalogue of the Phoridae of the world (Diptera, Phoridae). Studia Entomologica 11: Disney, R.H.L Family Phoridae. In: Soos, A & Papp, L. (eds). Catalogue of Palaearctic Diptera (Dolichopodidae-Platypezidae). Budapest: Akademiai Kiado 7: Michailovskaya, M.V New data on the fauna of Phoridae (Diptera) of Primorskij Territory. Entomologicheskoe Obozrenie 65: (In Russian). Schmitz, H Phoridae. In: Lindner, E. (ed.). Die Fliegen der palaearktischen Region. 4(33):

7 SHORT COMMUNICATION Yurshenko G.I. & Turova G.I. ON BIOLOGY OF THE TACHINID-FLY CARCELIA MATSUKAREHAE SHIMA (DIPTERA, TACHINIDAE) IN PRIMORYE TERRITORY - Far Eastern Entomologist N 52: 7-8. Г.И. Юрченко, Г.И. Турова. О биологии тахины Carcelia matsukarehae Shima (Diptera, Tachinidae)) в Приморском крае // Дальневосточный энтомолог N 52: 7-8. A tachinid-fly Carcelia matsukarehae Shima is known as a parasite of Dendrolimus spectabilis Butler in Japan [1] and Siberian moth (Dendrolimus superans sibiricus Tschetv.) in the Russian Far East [2, 3]. But its biology in the local conditions still remains unstudied. The current work was fulfiled under financial support by Forest Management of Primorsky region. This report is based on material, obtained in during Dendrolimus superans sibiricus population observations in several permanent investigation areas in Dal nerechyenskii, Chuguyevskii, Arseniyevskii, and Yakovlevskii districts of Primorskii krai.the investigations were conducted mainly in cedar-broadleaved stands of m a.s.l. The stands have the next composition: 2-6 units of Pinus koraiensis, to 4 units of Abies nephrolepis and Picea ajanensis, besides that oak, linden, maples and other decidious trees are presented. Siberian moth larvae were collected and calculated mainly by method of shake off the second storey trees cm d.b.h. on the fabric. Larvae were reared on branches in nature or in laboratory on the cutted branches. According to our data Carcelia matsukarehae is widely distributed throughout several southern and central districts of the Primorye territory and inhabits cedar-broadleaved stands of various types located on the slopes and river vallies. It is important to note its populations are more abundant in stands that were cutted partly for a long time. Now they have moderate density and the coniferous share consists no more than one half of decidious in the first storey composition (no more than 6 units among 10). The northern limit of C. matsukarehae is not clear because there were no comprehensive studies of Siberian moth northwardly from the named districts during the last years. In southern Primorye C. matsukarehae produces two generations. The first generation larvae overwinter in the Siberian moth larvae of 2nd-5th instars (mostly of 3rd-4th instars) and leave them from early May to mid-june. Adult tachinid-flies emerge in June and July. From mid-june they infest Siberian moth larvae of 5th and 6th instar, but adult larvae emerge from Siberian moth pupae in the second decade of August. Adult tachinid-flies of the second generation emerge 7-10 days later, occuring in August-September and infest the new larvae of Siberian moth. C. matsukarehae not found in pupae, that were obtained from the larvae collected in May and early June. Only 3% of pupae were infested in the larvae sample of June 17-21; we assume that they were infested by second generation of C. matsukarehae. Usually one tachinid larva grows in one host larva, but it was not so rare to find two specimens of parasite in one big 5th instar host larvae. In one pupa there were 1-25 specimens of C. matsukarehae (8 specimens in average). Tachinid-flies grew in puparia about 20 days in May but only 7-10 days in June and July under hot weather. 7

8 Some part of new hatching tachinid-flies of both sexes were carried into the glass boxenclosures covered with meshy material. Water, sweet top-dressing, cutted shoots of fir and oak, some larvae of Siberian moth and Lymantria dispar were placed inside too. Periodic dissection of females being in the boxes, revealed a great number of the mature eggs after 8-10 days; it reached 180 eggs. In three females had been living in the box more than 14 days, there were larvae besides the eggs. 1. Shima, H A new species of the genus Carceliopsis Townsend (Diptera, Tachinidae), reared from Dendrolimus spectabilis Butler (Lepidoptera: Lasiocampidae) Kontyu 37(2): Kolomieyts, N.G. & Artamonov, S.D Dvukrylye nasekomye - entomofagi lesnykh shelkopryadov. Nauka Publ., Novosibirsk: 151 pp. (In Russian). 3. Yurchenko, G.I. & Orlov, Yu.M [Siberian moth and its control in cedarbroadleaved forests of Far East]. In: Zashchita khvoinykh nasazhdenii ot vreditelei i boleznei. Kaunas: (In Russian). Author s address: Far East Forestry Research Institute, Volochaevskaya str., 71 Khabarovsk, , Russia. Far Eastern entomologist (Far East. entomol.) Editor-in-Chief: S.Yu.Storozhenko Editorial Board: A.S.Lelej, Yu.A.Tshistjakov, N.V.Kurzenko Address: Institute of Biology and Pedology, Far East Branch of Russian Academy of Sciences, , Vladivostok-22, Russia. FAX: (4232) entomol@online.marine.su