Stratiomyinae

Li, Zhu, Yang, Ding & Zhang, Tingting, 2016, Review of the genus Rhaphiocerina Lindner (Diptera: Stratiomyinae), with description of a new species, Zootaxa 4111 (1), pp. 53-60 : 54

Key to known genera of Stratiomyinae from China

1 4 veins including CuA1 arising from discal cell (i. e. crossvein dm-cu absent)......................................2

- At most 3 veins vein arising from discal cell, CuA1 separated from discal cell by crossvein dm-cu...................... 3

2 Apical antennal flagellomere modified into a slender arista; abdomen as long as wide or wider.................. .. Oxycera

- Apical antennal flagellomere not arista-like, not markedly different from preceding flagellomeres; abdomen much longer than wide....................................................................................... Oxyceroides

3 Body with distinct blue to green metallic luster.............................................................. 4

- Body without distinct blue to green metallic luster............................................................ 5

4 Vein M3 absent; two M veins arising from discal cell; scutellum without spines.......................... Prosopochrysa

- Vein M3 present; three M veins arising from discal cell; scutellum with pair of distinct marginal spines.......... Nothomyia

5 Antennal flagellum basally oval with subapical arista, arista longer than remaining flagellomeres combined; postocular rim distinct in both males and females............................................................. Rhaphiocerina

- Antennal flagellum rod-like, apical flagellomere maybe slightly modified but not arista-like; postocular rim in males invisible................................................................................................... 6

6 Vein R2+3 absent, apparently fused with vein R1; discal cell very small, fused with vein Rs (i.e., crossvein r-m absent).................................................................................................. Oplodontha

- Vein R2+3 present, discal cell large, not fused with vein Rs (i.e., crossvein r-m present)............................... 7

7 Vein M3 weak, distinctly fainter than vein M2 or CuA1, often entirely absent (i.e., two M veins arising from discal cell), vein M1 also usually weak, especially at base near discal cell; scape at most twice as long as pedicel.................. Odontomyia

- Vein M3 as developed as vein M2 and CuA1, (i.e., three M veins arising from discal cell), vein M1 also usually developed; scape 3–5 times as long as pedicel..................................................................... Stratiomys