Estheria decolor ( Pandellé, 1896 )

Zhang, Chun-Tian, Shima, Hiroshi, Liang, Hou-Can & Li, He-Nan, 2019, Four new species of Estheria Robineau-Desvoidy (Diptera: Tachinidae) from China and Nepal, with a review of the East Palearctic and Oriental species, Zootaxa 4603 (1), pp. 1-38 : 15

Estheria decolor ( Pandellé, 1896)

( Figs 7 , 19 , 31 , 43 , 59 , 85 , 98 , 113 )

Dexia (Dexiomorpha) decolor Pandellé, 1896: 153 . Type locality: Hyères, Var ( France). Holotype ♀ (MNHN) not examined. References: Herting & Dely-Draskovits (1993: 363; Palearctic catalog, as synonym of E. picta ); Cerretti & Tschorsnig (2012: 273, 285; as a valid species).

Diagnosis. Frons of male 1/9–1/7 of head width; parafacial with setulae; 1 st flagellomere yellow, rarely light brown; 4 presutural and 4 postsutural dorsocentral setae; lateral presutural black vitta sharply outlined, wedgeshaped, reaching level of medial posthumeral seta anteriorly; 2 katepisternal setae; scutellum entirely yellow, with 4 pairs of marginal scutellar setae; wing brownish around crossvein r-m; abdomen reddish-yellow, with a narrow black mid-dorsal vitta; tergites 3 and 4 each with two pairs of median discal setae.

Redescription. Body length: 11.0– 11.5 mm.

Male. Head. Frontal vitta black; fronto-orbital plate, parafacial and occiput covered with grayish-white pruinosity; lunule reddish-brown; 1 st flagellomere reddish-yellow except apex dark; palpus reddish-yellow. Frons 1/9–1/7 of head width; fronto-orbital plate and parafacial hairy; facial carina narrow; genal height about 0.8 of eye height; occiput usually with a row of black setulae below postocellar row; 1 st flagellomere about 1.2 times as long as pedicel; arista plumose, aristal hairs about as long as width of 1 st flagellomere ; prementum 3.0–3.5 times as long as wide.

Thorax covered with grayish-white pruinosity on dorsum and pleura, with 4 dark longitudinal vittae on dorsum, postpronotum at least partly reddish-yellow. Lateral presutural black vitta sharply outlined, wedge-shaped, reaching level of medial posthumeral seta anteriorly; two median presutural vittae narrow, separated by a distance 5 times the width of a vitta (posterior view); dorsum with 4–6 postpronotal setae, the three strongest nearly arranged in a triangle, 3 presutural and 3–4 postsutural acrostichal setae, 4 presutural and 4 postsutural dorsocentral setae, 3 postsutural intra-alar setae, 3 supra-alar setae, the first one short; scutellum with 4 pairs of marginal setae and 2 pairs of discal setae; 2 katepisternal setae, 1 anepimeral seta. Wing hyaline, brownish, yellow at base; tegula dark brown, basicosta reddish-yellow; crossvein r-m brownish-clouded; lower calypter yellowish-white, yellowish on margin, with short fringe on outer margin. Costal spine shorter than crossvein r-m, relative lengths of 2nd, 3rd and 4th costal sectors approximately 1.2:2.4:1; radial node with 4–5 setulae dorsally and ventrally; cell r 4+5 closed at wing margin, vein M with appendage at bend. Legs dark except trochanters and middle part of tibiae reddishyellow. Fore tibia with a row of anterodorsal setae on upper 2/3 and 2 posterior setae; fore claws and pulvilli longer than 5th tarsomere; mid femur with 3 strong anterior setae, mid tibia with 2 anterodorsal, 2 posterior and 2 ventral setae; hind tibia with 4 anterodorsal, 3–4 posterodorsal and 3 ventral setae, 2 apical dorsal setae, 1 apical anteroventral seta.

Abdomen ovate, reddish-yellow, with thick grayish-white pruinosity entirely covering tergites. Syntergite 1+2 excavated to posterior margin, with 1 lateral marginal seta and 3–4 lateral discal setae; tergite 3 with 2 median marginal setae, 1 lateral marginal seta and 2 pairs of median discal setae; lateral discal seta absent; tergite 4 with a row of marginal setae, 2 pairs of median discal setae, without lateral discal setae; tergite 5 with rows of discal and marginal setae and some irregular discal setae. Male terminalia as in Figs 7 , 19 , 31 , 43 .

Female. As male, except as follows: frons about 0.45 of head width; genal height 0.85–0.9 of eye height; 2–3 proclinate orbital setae; upper prevertical seta and ocellar seta stronger than upper frontal setae; outer vertical seta about 0.6 times as long as inner vertical seta. First flagellomere slightly longer than pedicel; prementum about 3 times as long as wide. Fore claws and pulvilli shorter than 5th tarsomere. Abdomen ovate, tergites 3 and 4 each with a pair of median discal setae; tergite 5 with a row of discal setae.

Material examined. China, Inner Mongolia: 1 ♂ ( IOZE1689762 ), Tumuertai , 5–31.VIII.1971, Y.-S. Shi leg. ( IZCAS) ; 1 ♂, Dongsheng , 11.IX.2006, M. Su leg. ( SYNU) ; 2 ♂♂, 1 ♀, Xilinguole Prefecture, Maodeng pasture, 12–26.VII.2015, A.-P. Liu leg. ( IGRCAAS) ; 2 ♂♂, 1 ♀, Wulanchabu, Siziwang Qi, Qianmen , 1–15.VIII.2015, A.- P. Liu leg. ( IGRCAAS) ; 1 ♂, Baiyinxile pasture, Jiuliu experimental field, 13.VII.2016, K.-L. Lu leg. ( IMU) ; 1 ♂, Hohhot, Wuchuan, Daqingshan , Shierdeng Village , 21.VII.2017, J. Gao leg. ( IMAU) . Spain: 1 ♂, 1 ♀, Salamanca prov., Villar de la Yegua , 9.VII.1990, H.-P. Tschorsnig leg. ( SMNS; det. H.-P. Tschorsnig) .

Distribution. China *, France, Spain.

Remarks. We identified this species by comparing European and Chinese specimens and using the key in Cerretti & Tschorsnig (2012). It appears to be very similar to E. picta (Meigen) , but differs in having narrower frons in male, lateral presutural black vitta sharply outlined, wedge-shaped, reaching to level of medial posthumeral seta anteriorly, inner presutural black vitta narrow, about 1/5 width of pruinose area between inner and outer vittae.

Figures

FIGURES 1–12. Male terminalia of Estheria spp. in caudal view. 1. E. hirtinerva sp. nov., paratype from Geka-Echu Mountains, Daocheng, Sichuan, China (SYNU). 2. E. prostata sp. nov., paratype from Gezan, Shangri-La, Yunnan, China (SYNU). 3. E. tibetensis sp. nov., paratype from Geka- Echu Mountains, Daocheng, Sichuan, China (SYNU). 4. E. wangi sp. nov., paratype from Napahai wetland, Shangri-La, Yunnan, China (SYNU). 5. E. acuta (Portschinsky), specimen from Hunyuan, Shanxi, China (SYNU). 6. E. cristata (Meigen), specimen from Baden-Willingen, Germany (SMNS). 7. E. decolor (Pandellé), specimen from Dongsheng, Inner Mongolia, China (SYNU). 8. E. flavipennis Herting, specimen from Xi Ujimqin Qi, Inner Mongolia, China (IZCAS). 9. E. maculipennis Herting, specimen from Dong Ujimqin Qi, Inner Mongolia, China (IZCAS). 10. E. magna (Baranov), specimen from Mt. Fenghuang, Fengcheng, Liaoning, China (SYNU). 11. E. pallicornis (Loew), specimen from Shule, Xinjiang, China (GSFPM). 12. E. petiolata (Bonsdorff), specimen from Kanas Lake, Burqin, Xinjiang, China (SEMCAS). Scale bars = 0.2 mm.

FIGURES 13–24. Male terminalia of Estheria spp. in lateral view. 13. E. hirtinerva sp. nov., paratype from Geka-Echu Mountains, Daocheng, Sichuan, China (SYNU). 14. E. prostata sp. nov., paratype from Gezan, Shangri-La, Yunnan, China (SYNU). 15. E. tibetensis sp. nov., paratype from Geka- Echu Mountains, Daocheng, Sichuan, China (SYNU). 16. E. wangi sp. nov., paratype from Napahai wetland, Shangri-La, Yunnan, China (SYNU). 17. E. acuta (Portschinsky), specimen from Hunyuan, Shanxi, China (SYNU). 18. E. cristata (Meigen), specimen from Baden-Willingen, Germany (SMNS). 19. E. decolor (Pandellé), specimen from Dongsheng, Inner Mongolia, China (SYNU). 20. E. flavipennis Herting, specimen from Xi Ujimqin Qi, Inner Mongolia, China (IZCAS). 21. E. maculipennis Herting, specimen from Dong Ujimqin Qi, Inner Mongolia, China (IZCAS). 22. E. magna (Baranov), specimen from Mt. Fenghuang, Fengcheng, Liaoning, China (SYNU). 23. E. pallicornis (Loew), specimen from Shule, Xinjiang, China (GSFPM). 24. E. petiolata (Bonsdorff), specimen from Kanas Lake, Burqin, Xinjiang, China (SEMCAS). Scale bars = 0.2 mm.

FIGURES 25–36. Estheria spp., phallic complexes in lateral view. 25. E. hirtinerva sp. nov., paratype from Geka-Echu Mountains, Daocheng, Sichuan, China (SYNU). 26. E. prostata sp. nov., paratype from Gezan, Shangri-La, Yunnan, China (SYNU). 27. E. tibetensis sp. nov., paratype from Geka- Echu Mountains, Daocheng, Sichuan, China (SYNU). 28. E. wangi sp. nov., paratype from Napahai wetland, Shangri-La, Yunnan, China (SYNU). 29. E. acuta (Portschinsky), speciumen from Hunyuan, Shanxi, China (SYNU). 30. E. cristata (Meigen), specimen from Baden-Willingen, Germany (SMNS). 31. E. decolor (Pandellé), specimen from Dongsheng, Inner Mongolia, China (SYNU). 32. E. flavipennis Herting, specimen from Xi Ujimqin Qi, Inner Mongolia, China (IZCAS). 33. E. maculipennis Herting, specimen from Dong Ujimqin Qi, Inner Mongolia, China (IZCAS). 34. E. magna (Baranov), specimen from Mt. Fenghuang, Fengcheng, Liaoning, China (SYNU). 35. E. pallicornis (Loew), specimen from Shule, Xinjiang, China (GSFPM). 36. E. petiolata (Bonsdorff), specimen from Kanas Lake, Burqin, Xinjiang, China (SEMCAS). Scale bars = 0.2 mm.

FIGURES 37–52. Male terminalia of Estheria spp. 37–48, 52. Sternite 5 in ventral view. 49–50. Epandrial complex in caudal (49) and lateral (50) views. 51. Phallic complex in lateral view. 37. E. hirtinerva sp. nov., paratype from Geka-Echu Mountains, Daocheng, Sichuan, China (SYNU). 38. E. prostata sp. nov., paratype from Gezan, Shangri-La, Yunnan, China (SYNU). 39. E. tibetensis sp. nov., paratype from Geka- Echu Mountains, Daocheng, Sichuan, China (SYNU). 40. E. wangi sp. nov., paratype from Napahai wetland, Shangri-La, Yunnan, China (SYNU). 41. E. acuta (Portschinsky), specimen from Hunyuan, Shanxi, China (SYNU); 42. E. cristata (Meigen), specimen from Baden-Willingen, Germany (SMNS). 43. E. decolor (Pandellé), specimen from Dongsheng, Inner Mongolia, China (SYNU). 44. E. flavipennis Herting, specimen from Xi Ujimqin Qi, Inner Mongolia, China (IZCAS). 45. E. maculipennis Herting, specimen from Dong Ujimqin Qi, Inner Mongolia, China (IZCAS). 46. E. magna (Baranov), specimen from Mt. Fenghuang, Fengcheng, Liaoning, China (SYNU). 47. E. pallicornis (Loew), specimen from Shule, Xinjiang, China (GSFPM). 48. E. petiolata (Bonsdorff), specimen from Kanas Lake, Burqin, Xinjiang, China (SEMCAS). 49–52. E. picta (Meigen), specimen from Dong Ujimqin Qi, Inner Mongolia, China (IZCAS). Scale bars = 0.2 mm.

FIGURES 53–64. Estheria spp., male heads in anterior view. 53. E. hirtinerva sp. nov., paratype from Solukhumbu District, Nepal (BLKU). 54. E. prostata sp. nov., holotype (SYNU). 55. E. tibetensis sp. nov., paratype from Pianma, Yakou, Lushui, Yunnan, China (SYNU). 56. E. wangi sp. nov., holotype (SYNU). 57. E. acuta (Portschinsky), specimen from Hunyuan, Shanxi, China (SYNU). 58. E. cristata (Meigen), specimen from Baden-Willingen, Germany (SMNS). 59. E. decolor (Pandellé), specimen from Dongsheng, Inner Mongolia, China (SYNU). 60. E. flavipennis Herting, specimen from Xi Ujimqin Qi, Inner Mongolia, China (IZCAS). 61. E. maculipennis Herting, specimen from Dong Ujimqin Qi, Inner Mongolia, China (IZCAS). 62. E. magna (Baranov), specimen from Baishilazi, Kuandian, Liaoning, China (SYNU). 63. E. pallicornis (Loew), specimen from Shule, Xinjiang, China (GSFPM). 64. E. petiolata (Bonsdorff), specimen from Briançon, Nevache, France (SMNS).

FIGURES 83–91. Estheria spp., male heads in lateral view. 83. E. acuta (Portschinsky), specimen from Hunyuan, Shanxi, China (SYNU). 84. E. cristata (Meigen), specimen from Baden-Willingen, Germany (SMNS). 85. E. decolor (Pandellé), specimen from Dongsheng, Inner Mongolia, China (SYNU). 86. E. flavipennis Herting, specimen from Xi Ujimqin Qi, Inner Mongolia, China (IZCAS). 87. E. maculipennis Herting, specimen from Dong Ujimqin Qi, Inner Mongolia, China (IZCAS). 88. E. magna (Baranov), specimen from Baishilazi, Kuandian, Liaoning, China (SYNU). 89. E. pallicornis (Loew), specimen from Alashanzuo Qi, Helan Mountain, Halawu, Inner Mongolia, China (SYNU). 90. E. petiolata (Bonsdorff), specimen from Briançon, Nevache, France (SMNS). 91. E. picta (Meigen), specimen from Dong Ujimqin Qi, Inner Mongolia, China (IZCAS). Scale bars: 0.5 mm (Figs 87–89); 1 mm (Figs 90–91).

FIGURES 92–106. Estheria spp., male habitus in dorsal (92–104) and lateral (106) view; head in anterior view (105). 92. E. hirtinerva sp. nov., paratype from Solukhumbu District, Nepal (BLKU). 93. E. prostata sp. nov., holotype (SYNU). 94. E. tibetensis sp. nov., paratype from Pianma, Yakou, Lushui, Yunnan, China (SYNU). 95. E. wangi sp. nov., holotype (SYNU). 96. E. acuta (Portschinsky), specimen from Hunyuan, Shanxi, China (SYNU). 97. E. cristata (Meigen), specimen from Baden- Willingen, Germany (SMNS). 98. E. decolor (Pandellé), specimen from Dongsheng, Inner Mongolia, China (SYNU). 99. E. flavipennis Herting, specimen from Xi Ujimqin Qi, Inner Mongolia, China (IZCAS). 100. E. maculipennis Herting, specimen from Dong Ujimqin Qi, Inner Mongolia, China (IZCAS). 101. E. magna (Baranov), specimen from Baishilazi, Kuandian, Liaoning, China (SYNU). 102. E. pallicornis (Loew), specimen from Alashanzuo Qi, Helan Mountain, Halawu, Inner Mongolia, China (SYNU). 103. E. petiolata (Bonsdorff), specimen from Briançon, Nevache, France (SMNS). 104–106. E. picta (Meigen), specimen from Dong Ujimqin Qi, Inner Mongolia, China (IZCAS).

FIGURES 107–118. Estheria spp., male habitus in lateral view. 107. E. hirtinerva sp. nov., paratype from Solukhumbu District, Nepal (BLKU). 108. E. prostata sp. nov., holotype (SYNU). 109. E. tibetensis sp. nov., paratype from Pianma, Yakou, Lushui, Yunnan, China (SYNU). 110. E. wangi sp. nov., holotype (SYNU). 111. E. acuta (Portschinsky), specimen from Hunyuan, Shanxi, China (SYNU). 112. E. cristata (Meigen), specimen from Baden-Willingen, Germany (SMNS). 113. E. decolor (Pandellé), specimen from Dongsheng, Inner Mongolia, China (SYNU). 114. E. flavipennis Herting, specimen from Xi Ujimqin Qi, Inner Mongolia, China (IZCAS). 115. E. maculipennis Herting, specimen from Dong Ujimqin Qi, Inner Mongolia, China (IZCAS). 116. E. magna (Baranov), specimen from Baishilazi, Kuandian, Liaoning, China (SYNU). 117. E. pallicornis (Loew), specimen from Alashanzuo Qi, Helan Mountain, Halawu, Inner Mongolia, China (SYNU). 118. E. petiolata (Bonsdorff), specimen from Briançon, Nevache, France (SMNS).