*

212 47 3 2005 Rhyncaphytoptidae (Eriophyoidea) with key to subfamilies and genera. Acarologia 33: 75-84. 4. Keifer, H. H. 1960. Eriophyid Studies B-1. Bur. Ent., Calif. Dept. Agric.: 1-20. 5. Huang, K. W. 1992. Some new eriophyoid mites from Taiwan. Bull. Natl. Mus. Sci. 3: 225-240. 6. Huang, K. W. 1999. The species and geographic variation of eriophyoid mites on Yushania niitakayamensis of Taiwan, pp. 199-208. In: M. M. Yang [ed.], Proc. Symp. Insect Syst. and Evol. Dept. Entomol. Natl. Taiwan Univ. and Taiwan Museum. 251 pp. (in Chinese with English summary). 7. Huang, K. W. 2001. Eriophyoid mites of Taiwan: description of twenty-three species from Lanyu. Bull. Natl. Mus. Nat. Sci. 13: 37-63. 8. Lindquist, E. E. 1996. External anatomy and notation of structures, pp. 3-31. In: E. E. Lindquist, M. W. Sabelis, and J. Bruin [eds.], World Crop Pests, Vol. 6, Eriophyid Mites-Their Biology, Natural Enemies And Control. Elsevier Science, Amsterdam. 790 pp. * 2005 蟎 47:201 212 立 林 4 7 1 4 2 Diptilomiopus stephanus sp. nov. 金 Stephania japonica Diptilomiopus formosanus sp. nov. Syzygium formosanum Diptilomiopus cuminis Chakrabarti et al., 1992 Syzygium formosanum Diptilomiopus championus Huang, 2001 comb. nov. Bauhinia championii Acarhis castanopsis sp. nov. Castanopsis kawakamii, Apodiptacus styracus sp. nov. Styrax formosana Catarhinus palmifolies Huang 2001 Setaria palmifolia 林 索 ( ) *E-mail: eri@mail.nmns.edu.tw

Eriophyoid mites of Taiwan: description of seven species of Diptilomiopidae from Hueysuen 211 Fig. 4. Acarhis castanopsis sp. nov. ( ) A, Dorsal view; B, Legs and genital region, ventral view; C, Detail of some annuli in lateral view; D, Empodium. (scale A, B = 50 µm; C = 40 µm; D = 15 µm). LITERATURE CITED 1. Amrine, J. W. jr., Stasny, T. A., and Flechtmann, C. H. W. 2003. Revised keys to world genera of Eriophyoidea (Acari: Prostigmata). Indira Publishing Houses; Michigan. 244pp. 2. Boczek, J., and Chandrapatya, A. 2000. Studies on Eriophyoid mites. XXX. Bull. Polish Acad. Sci., Biol. Sci. 48: 135-143. 3. Chakrabarti S., Ghosh, B., and Das, B. 1992. New genera and species of

210 47 3 2005 Acarhis castanopsis sp. nov. (Fig. 4) Female: Body fusiform, 166 long, shield 38 long, 75 wide, shield lobe present, shield design with network of cells, with tier of 9 cells along anterolateral shield margin, 3 cells occurring in middle, 2 cells on rear of shield, open on posterior; scapular tubercles set ahead of rear shield margin, setae (sc) 4 long, directed forward, sc-sc 23, sc-sr 21; leg segment genua absent from both legs, fore and hind femoral setae absent, fore tibial setae (1') 6 long, set at basal 2/3; coxal area smooth, fore coxal sternal line absent; 1st coxal setae (1b) 16 long, 1b-1b 16 apart, 2nd coxal setae (1a) 6 long, 1a-1a 13 apart, 3rd coxal setae (2a) 33 long, 2a-2a 30 apart, 1b\1a 17, 1b-1a 9, 1a\2a 22, 1a-2a 9; claw ending as knob; empodium divided, 8 rayed. Opisthosoma: with wide median ridges, dorsal annuli with about 42 microtuberculate rings, 1st 3 dorsal annuli 10 long, ventral annuli with 86 microtuberculate rings; lateral tubercles and setae (c2) absent; 1st ventral setae (d) 39 long, d-d 42 apart; d\e 39, d-e 25; 2nd ventral setae (e) 11 long; e-e 23 apart, e\f 42, e-f 33; 3rd ventral setae (f) 28 long, f-f 28 apart; accessory setae (h1) present. Coverflap: 25 wide, 18 long, with many transverse lines in 2 ranks, genital setae (3a) 10 long, 3a-3a 20 apart. Male: Body 144 long, shield 41 long 70 wide, scapular seta 3 long, Dt-Dt 16 apart, Dt-Sr 22 long; genitalia 17 wide, 10 long, seta 6 long, 3a-3a 14 apart. Type data: Holotype, NANTOU: Renai, 8-Sep.-1992, Huang et Wang; ex Castanopsis kawakanii Hayata (Fagaceae). (deposited at NMNS). Paratypes, 2,1, data same as for holotype. Note: This new species is close to A. siamensis Boczek et Chandrapatya (2) but differs in shield design with 2 open cells on the rear of theshield, the coverflap with many transverse lines in 2 ranks, and bythe 6-rayed empodium. Catarhinus palmifolies Huang, 2001 Catarhinus palmifolies Huang, 2001 Specimens examined: 3, NANTOU: Renai, 3-Sep.-1992, K. W. Huang & C. F. Wang; ex Setaeria palmifolia (Koen.) Stapf (Poaceae). Distribution: Taiwan.

Eriophyoid mites of Taiwan: description of seven species of Diptilomiopidae from Hueysuen 209 Fig. 3. Apodiptacus styracus sp. nov. ( ) A, Dorsal view; B, Legs and genital region, ventral view; C, Detail of some annuli in lateral view; D, Empodium. (scale A, B = 50 µm; C = 40 µm; D = 15 µm).

208 47 3 2005 Apodiptacus styracus sp. nov. (Fig. 3) Female: Body fusiform, 193 long, shield 43 long, 69 wide, shield lobe present, shield design lacking median line, admedian lines from base to basal 2/3, converging to base, submedian lines absent; scapular tubercles set ahead of rear shield margin, setae (sc) 12 long, directed forward and upward, sc-sc 31, sc-sr 14; leg segments normal, fore and hind femoral setae absent, fore tibial setae (1') 7 long, set at 1/2; fore coxal area with longitudinal lines; 1st coxal setae (1b) 15 long, 1b-1b 14 apart, 2nd coxal setae (1a) 17 long, 1a-1a 10 apart, 3rd coxal setae (2a) 40 long, 2a-2a 33 apart, 1b\1a 15, 1b-1a 9, 1a\2a 22, 1a-2a 12; claw ending as knob; empodium divided, 6 rayed. Opisthosoma: with wide median ridges, dorsal annuli with about 58 rings, 1st 3 dorsal annuli 7 long, ventral annuli with 86 microtuberculate rings; lateral setae (c2) 18 long, c2-c2 72 apart, c2\d 77, c2-d 42; 1st ventral setae (d) 62 long, d-d 58 apart; d\e 60, d-e 42; 2nd ventral setae (e) 17 long; e-e 30 apart, f\f 53, e-f 44; 3rd ventral setae (f) 29 long, f-f 28 apart; accessory setae (h1) absent. Coverflap: 34 wide, 22 long, with about 30 longitudinal ridges, genital setae (3a) 13 long, 3a-3a 19 apart. Male: not seen. Type data: Holotype, NANTOU: Renai, 6-Oct.-1994, C. F. Wang; ex Styrax formosana Matsum. var. formosana (Styraceae). (deposited at NMNS). Paratypes, 2, data same as for holotype. Note: This new species is close to A. cordiformis Keifer (4) but differs in shield design which lacks a median line and by the 6-rayedempodium.

Eriophyoid mites of Taiwan: description of seven species of Diptilomiopidae from Hueysuen 207 Fig. 2. Diptilomiopus formosanus sp. nov. ( ) A, Dorsal view; B, Legs and genital region, ventral view; C, Detail of some annuli in lateral view; D, Empodium. (scale A, B = 50 µm; C = 40 µm; D = 15 µm).

206 47 3 2005 Specimens examined: 3, NANTOU: Renai, 8-Sep.-1992, K. W. Huang & C. F. Wang; ex Syzygium formosanus (Hayata) Mori (Myrtaceae). (deposited at NMNS). Distribution: India, Taiwan. Diptilomiopus formosanus sp. nov. (Fig. 2) Female: Body fusiform, 164 long, shield 32 long, 67 wide, shield lobe absent, shield design with network of cells, with tier of 12 cells along anterolateral shield margin, 5 cells occurring in middle, 4 cells on rear of shield; scapular tubercles and setae absent; leg segment genua absent from both legs, fore tibial and fore and hind femoral setae absent; coxal area smooth; 1st coxal tubercle and setae absent, 2nd coxal setae (1a) 17 long, 1a-1a 7 apart, 3rd coxal setae (2a) 27 long, 2a-2a 33 apart, 1a\2a 21, 1a-2a 13; claw ending as knob; empodium divided, 5 rayed. Opisthosoma: dorsum with median ridge, dorsal annuli with about 47 smooth rings, 1st 3 dorsal annuli 9 long; ventral annuli with about 64 microtuberculate rings; lateral tubercle and setae absent, 1st ventral setae (d) 9 long, d-d 40 apart; d\e 42, d-e 32; 2nd ventral setae (e) 6 long; E-e 18 apart, e\f 40, e-f 34; 3rd ventral setae (f) 22 long, f-f 25 apart; accessory setae (h1) present. Coverflap: 27 wide, 19 long, smooth, genital setae (3a) 6 long, 3a-3a 19 apart. Male: not seen. Type data: Holotype, NANTOU: Renai, 6-Oct.-1994, C. F. Wang; ex Syzygium formosanus (Hayata) Mori (Myrtaceae). (deposited at NMNS). Paratypes, 3, data same as for holotype. Note: This new species is close to D. cuminis Chakrabarti (3) but differs in presenting a tier of 4 cells on the rear of the shield and by the 5-rayed empodium.

Eriophyoid mites of Taiwan: description of seven species of Diptilomiopidae from Hueysuen 205 Diptilomiopus cuminis Chakrabarti et al., 1992 Diptilomiopus cuminis Chakrabarti et al., 1992 Female: Body fusiform, 188 long, shield 33 long, 63 wide, shield lobe present, shield design with network of cells, with tier of 12 cells along anterolateral shield margin, 5 cells occurring in middle, 2 cells on rear of shield; scapular tubercles and setae absent; leg segment genua absent from both legs, fore tibial and fore and hind femoral setae absent; coxal area smooth; 1st coxal tubercle and setae absent, 2nd coxal setae (1a) 15 long, 1a-1a 8 apart, 3rd coxal setae (2a) 28 long, 2a-2a 29 apart, 1a\2a 19, 1a-2a 11; claw ending as knob; empodium divided, 6 rayed. Opisthosoma: dorsum with faint median ridge, dorsal annuli with about 52 microtuberculate rings, 1st 3 dorsal annuli 9 long; ventral annuli with about 52 microtuberculate rings; lateral tubercle and setae absent, 1st ventral setae (d) 8 long, d-d 35 apart; d\e 43, Vt1-Vt2 46; 2nd ventral setae (e) 7 long; e-e 19 apart, e\f 48, Vt2-Vt3 42; 3rd ventral setae (f) 21 long, f-f 25 apart; accessory setae (h1) absent. Coverflap: 22 wide, 16 long, smooth, genital setae (3a) 8 long, 3a-3a 18 apart. Male: not seen. Specimens examined: 2, NANTOU: Renai, 8-Sep.-1992, K. W. Huang & C. F. Wang; ex Syzygium formosanus (Hayata) Mori (Myrtaceae). (deposited at NMNS). Distribution: India, Taiwan. Diptilomiopus cuminis Chakrabarti et al., 1992 Diptilomiopus cuminis Chakrabarti et al., 1992 Female: Body fusiform, 188 long, shield 33 long, 63 wide, shield lobe present, shield design with network of cells, with tier of 12 cells along anterolateral shield margin, 5 cells occurring in middle, 2 cells on rear of shield; scapular tubercles and setae absent; leg segment genua absent from both legs, fore tibial and fore and hind femoral setae absent; coxal area smooth; 1st coxal tubercle and setae absent, 2nd coxal setae (1a) 15 long, 1a-1a 8 apart, 3rd coxal setae (2a) 28 long, 2a-2a 29 apart, 1a\2a 19, 1a-2a 11; claw ending as knob; empodium divided, 6 rayed. Opisthosoma: dorsum with faint median ridge, dorsal annuli with about 52 microtuberculate rings, 1st 3 dorsal annuli 9 long; ventral annuli with about 52 microtuberculate rings; lateral tubercle and setae absent, 1st ventral setae (d) 8 long, d-d 35 apart; d\e 43, Vt1-Vt2 46; 2nd ventral setae (e) 7 long; e-e 19 apart, e\f 48, Vt2-Vt3 42; 3rd ventral setae (f) 21 long, f-f 25 apart; accessory setae (h1) absent. Coverflap: 22 wide, 16 long, smooth, genital setae (3a) 8 long, 3a-3a 18 apart. Male: not seen.

204 47 3 2005 Fig. 1. Diptilomiopus stephanus sp. nov. ( ) A, Dorsal view; B, Legs and genital region, ventral view; C, Detail of some annuli in lateral view; D, Empodium. (scale A, B = 50 µm; C = 40 µm; D = 15 µm).

Eriophyoid mites of Taiwan: description of seven species of Diptilomiopidae from Hueysuen 203 Diptilomiopus championus (Huang, 1992) comb. nov. Rhyncaus championi Huang, 1992 Diptilomiopus septimus Huang, 2001 (syn. nov.) Specimens examined: 2 7, Nantou: Renai, 2-Nov.-1990, K. W. Huang; 2, Taichung, Hoping, 9-Sep.-1993, K. W. Huang & C. F. Wang; 3, Kaohsiung: Tengchih, 20-Jul.-1993, K. W. Huang & C. F. Wang; ex Bauhinia championi (Benth.) Benth. (Fabaceae). (deposited at NMNS). Note: This species was misidentified as Rhyncaus by Huang in 1992 (5). Diptilomiopus stephanus sp. nov. (Fig. 1) Female: Body fusiform, 179 long, shield 27 long, 52 wide, shield lobe present, shield design with network of cells, with a tier of 12 cells along anterolateral shield margin, 5 cells occurring in middle, 2 cells on rear of shield; scapular tubercles and setae absent; leg segment genua absent from both legs, fore tibial and fore and hind femoral setae absent; coxal area smooth; 1st coxal tubercle and setae absent, 2nd coxal setae (1a) 12 long, 1a-1a 8 apart, 3rd coxal setae (2a) 34 long, 2a-2a 24 apart, 1a\2a 16, 1a-2a 9; claw ending as knob; empodium divided, 11~12 rayed. Opisthosoma: dorsum with median ridge, dorsal annuli with about 67 rings, with microtubercles on lateral ridges, 1st 3 dorsal annuli 9 long; ventral annuli with about 80 microtuberculate rings; lateral tubercle and setae absent, 1st ventral setae (d) 30 long, d-d 37 apart; d\e 41, d-e 29; 2nd ventral setae (e) 25 long; e-e 23 apart, e\f 49, e-f 42; 3rd ventral setae (f) 27 long, f-f 20 apart; accessory setae (h1) absent. Coverflap: 23 wide, 15 long, with about 21 short longitudinal ridges, genital setae (3a) 6 long, 3a-3a 16 apart. Male: not seen. Type data: Holotype, NANTOU: Renai, 6-Oct.-1994, C. F. Wang; ex Stephania japonica (Thumb. ex Murray) Miers (Menispermaceae). (deposited at NMNS). Paratypes, 3, data same as for holotype. Note: This new species is close to D. cuminis Chakrabarti (3) but differs in the coverflap with about 21 short longitudinal ridges, and by the 11~12 rayed empodium.

202 47 3 2005 species to Acarhis, 1 species to Apodiptacus and 1 species to Catarhinus. The family Diptilomiopidae was established by Keifer in 1944. This family has about 190 species in 29 genera of the Diptilomiopinae and 128 species in 20 genera of the Rhyncaphytoptinae is known from different parts of the globe and to infest different host plants. It is easy to differentiate them from all other members of the Eriophyoidea by the large gnathosoma in comparing to the body size, and by the chelicerae which is abruptly curved and bent down near the base. To date, there are 25 species of Diptilomiopidae known to occur in Taiwan (7). Among them, there are 7 genera each with a single species, i.e., Asetacus, Bucculacus, Cheiracus, Mediugum, Norma, Rhynacus and Rhyncaphytoptus, the genera Catarhinus and Rhinophytoptus with 2 species, the genus Diptacus with 3 species, and the genus Diptilomiopus with 11 species. Specimens are deposited in the National Museum of Natural Science (NMNS), Taichung, Taiwan. All measurement are in micrometers (µm). The terminology and abbreviations in the diagrams follow those of Lindquist (8) and Huang (6). In the text, the measurement of the oblique distance between tubercles is indicated by a back slash (\), and that of the straight distance between tubercles is indicated by a dash ( ) (6). Key to Species of the Diptilomiopidae from Hueysuen, Taiwan (modified from Amrine (1) ) 1. Empodium divided, usually deeply...diptilomiopinae... 2. -. Emopodium entire... Rhyncaphytotpinae... Catarhinus palmifolies Huang, 2001 2. Scapular setae and tubercles absent...... 3. -. Tubercles of scapular setae present...... 6. 3. Shield design with tier of 12 cells along anterolateral shield margin, 5 cells occurring in 2nd row......... 4. -. Shield design with tier of 7 cells along anterolateral shield margin, 7 cells occurring in 2nd row, 2 cells in 3 rd row, and 1 cell on rear of shield......... Diptilomiopus championus (Huang, 2001) comb. nov. 4. Shield design with 4 cells on rear of shield.........diptilomiopus formosanus sp. nov. -. Shield design with 2 cells on rear of shield...... 5. 5. Coverflap smooth; with 7-rayed empodium...... Diptilomiopus cuminis Chakrabarti et al., 1992 -.Coverflap with longitudinal ridges; with many-rayed empodium......... Diptilomiopus stephanus sp. nov. 6. Opisthosomal lateral seta (c2) absent...acarhis castanopsis sp. nov. -.Opisthosomal lateral seta (c2) present; opisthosoma with 3 dorsal longitudinal ridges......... Apodiptacus styracus sp. nov.

47 201-212, 2005 201 Eriophyoid Mites of Taiwan: description of seven species of Diptilomiopidae from Hueysuen (Acari: Eriophyoidea) Kun Wei Huang* Department of Zoology, National Museum of Natural Science, Taichung 404, Taiwan (ROC) (Accepted for publication: Mar. 11, 2005) ABSTRACT Huang, K. W.* 2005. Eriophyoid mites of Taiwan: description of seven species of Diptilomiopidae from Hueysuen (Acari: Eriophyoidea). Plant Prot. Bull. 47: 201 212 In this work, the author describes and illustrates 7 species of Diptilomiopidae in 4 genera, including 4 new species, 1 new combination and 2 known species, from Hueysuen, central Taiwan. They are: Diptilomiopus stephanus sp. nov. (infesting Stephania japonica), D. formosanus sp. nov. (infesting Syzygium formosanum), D. cuminis Chakrabarti et al., 1992 (infesting Syzygium formosanum), D. championus (Huang, 2001) comb. nov. (infesting Bauhinia championii), Acarhis castanopsis sp. nov. (infesting Castanopsis kawakamii), Apodiptacus styracus sp. nov. (infesting Styrax formosana), and Catarhinus palmifolies Huang, 2001 (infesting Setaria palmifolia). A key to the genera and species of Diptilomiopidae from Hueysuen is provided. (Key words: Diptilomiopidae, new species, new combination, Hueysuen, Taiwan) *E-mail: eri@mail.nmns.edu.tw INTRODUCTION This paper is the ninth part of a series of taxonomic work on eriophyoid mites from Hueysuen Experimental Forest, Nantou County, central Taiwan. The mites belong to 4 genera of 2 subfamilies of the Diptilomiopidae. Among them, 4 species belong to Diptilomiopus, 1