Melastrongygaster fuscipennis Shima

Shima, Hiroshi, 2015, Melastrongygaster, a new genus of the tribe Strongygastrini (Diptera: Tachinidae), with five new species from Asia, Zootaxa 3904 (3), pp. 427-445 : 436

Melastrongygaster fuscipennis Shima sp. nov.

Figs. 13–14 , 19–22

Differing from M. atrata as follows: Shining black marking on fronto-orbital plate extending below upper 1/3 and inner 1/2 of parafacial; frons slightly wider on upper portion, about 2.5 times as wide as base of arista at the narrowest portion, in profile about 2.3 times as long as face; parafacial nearly as wide as (slightly narrower than in profile) 1st flagellomere at middle height; lower portion of face weakly warped forward; gena about 1/3 (about 2/ 9 in profile) as high as eye height; inner vertical seta fine and long, about 1/2 as long as eye height; postocular setae fine and short; antenna about 3/4 as long as face, pedicel with a long seta which is about 2/3 as long as whole antenna, 1st flagellomere only slightly longer than pedicel. Three presutural dorsocentral setae; 2 katepisternal setae; scutellum with long and rather strong erect hairs, discal setae indistinct among hairs, sometimes an additional strong seta present behind subapical scutellar seta. Wing hyaline, tinged with brown; lower calypter brownish, more darkened medially and basally; base of vein R4+5 with 1 fine setulae dorsally or without it; relative lengths of costal sectors 2nd, 3rd and 4th approximately as 2:6:2.5; last section of vein CuA1 about 4/7 as long as dm-cu crossvein. Mid tibia with 1 anterodorsal, 2 posterodorsal, 1 posteroventral and 1 ventral setae. Abdomen with thin grayish pruinosity on anterior 1/2–2/5 of 3rd and 4th tergites, still thinner pruinosity on anterior 1/2 of 5th, pruinosity very thin on mid dorsal portion of 3rd and 4th tergites.

Male terminalia: Epandrium with 2 pairs of strong setae; surstylus straight, nearly parallel-sided and rounded at apex, with fine short pile on inner basal 1/2; bacilliform sclerite very short and fused posteriorly with inner wall of surstylus; cerci in dorsal view in form of narrow “X”, close together on basal 1/2, in lateral view broad at base and narrowed to basal 2/5, apical portion weakly curved ventrally.

Female. Unknown.

Body length: 6.6–7.1 mm.

Holotype male, Huangliangshan, 1800–1900 m, Luchun, Honghe, Yunnan, China, 9.iii.1995, B. Yang ( IZCAS).

Paratype: 1 male, Fenshuiling, 1950–2250 m, Jinping, Honghe, Yunnan, China, 7.iii.1995, H. Shima ( KUM).

Etymology. This species is named after its pale brownish tinged wings.

Distribution. China (Yunnan).

Figures

FIGURES 11 – 14. Habitus of adults. 11 – 12. Melastrongygaster chaoi sp. nov., male. 11. Lateral view. 12. Head in lateral view. 13 – 14. Melastrongygaster fuscipennis sp. nov., male. 13. Lateral view. 14. Head in lateral view.

FIGURES 19 – 22. Male terminalia of Melastrongygaster fuscipennis sp. nov. 19. Epandrium, surstylus and cerci in dorsal view (hairs omitted). 20. Same in lateral view (hairs omitted). 21. Hypandrium, postgonite and phallus in lateral view. 22. 5 th sternite in ventral view (hairs on left side omitted). Scale: 0.1 mm.