Pachygastrinae

Yang, Zai-Hua, Hauser, Martin, Yang, Mao-Fa & Zhang, Ting-Ting, 2013, The Oriental genus Nasimyia (Diptera: Stratiomyidae): Geographical distribution, key to species and descriptions of three new species, Zootaxa 3619 (5), pp. 526-540 : 527-528

Key to the Oriental genera of Pachygastrinae (modified after Yang & Yang 2010)

1 Abdomen elongate, slender............................................................................. 2

- Abdomen fat, nearly rounded....................................................... remaining Pachygasterinae

2 Scutellum with four spines.............................................................................. 3

- Scutellum without spines............................................................................... 7

3 Last antennal segment arista-like, bare; flagellomere round to oval shaped.............................. Evaza Walker

- Last antennal segment either densely covered with conspicuous setae or laterally flattened; flagellum oval to elongate, often cylindrical........................................................................................... 4

4 Antennal insertion on a frontal protrusion; vein r-m reduced to point............................................. 5

- Frons normal, without protrusion; vein r-m either absent or well developed........................................ 6

5 Flagellum kidney shaped, longer than pedicel; pedicel on inner side with a short extension into flagellum; antennae insert on a (long) conical, apically bipartite protuberance................................................ Trichochaeta Bigot

- Flagellum round to spindle shaped, nearly as long as pedicel; pedicel without extension; antennae insert on two (short) hemi- spherical protuberances.................................................................. Sathroptera Kertész

6 Crossvein r-m absent........................................................................ Tinda Walker

- Crossvein r-m distinctly present.............................................................. Rosapha Walker

7 Last antennal segment longer than rest of flagellum, densely haired; pedicel on inner side with finger-like extension beyond joint with flagellomere; vein R2+3 starting before r-m............................................ Salduba Walker

- Last antennal segment nearly equal in length, shape and pubescence to the other flagellomeres, much shorter than the rest of flagellum; pedicel without extension; vein R2+3 starting beyond r-m............................................ 8

8 Antennae widely separate at base, the distance between antennae about 1/4 the width of the head.................................................................................................. Parastratiosphecomyia Brunetti

- Antennae close together at base.......................................................................... 9

9 Face with conical, nose-like projection ( Fig.3 )............................................ Nasimyia Yang & Yang

- Face rounded, convex, without a nose-like projection........................................................ 10

10 Abdomen pedunculate............................................................. Stratiosphecomyia Brunetti

- Abdomen not pedunculate......................................................... Pseudomeristomerinx Hollis

Figures

FIGURES 1 – 4. Nasimyia eurytarsa sp. nov. adult: 1, male, dorsal view; 2, female, dorsal view; 3, male, lateral view; 4, female, lateral view.