Key to genera and subgenera

1. orb 1+3–4. Genae covered by long upcurved setae (Figure 12)……….........…….. g. Gymnopsidia Shewell

- orb 1+2. Genae covered by fine inconspicuous hairs... 2

2. fr not reaching below antennal base, almost not divergent (Figure 13).............. g. Gymnoprosopa Town.

- fr reaching to level of middle of pedicel, distinctly divergent (Figure 14) ….........…… g. Phrosinella R.-D.

a. Abdomen with checkering pattern; 2nd tarsomere of male fore tarsi with a tuft of long hairs (Figure 16) ……………....................…………sg. Euhilarella Town.

- Abdomen with distinct dark bands or spots at tergites (Figure 15); male fore tarsi with another chaetom ….. b

b. Frontal stripe as wide or wider than one of parafrontalia; R 1 bare dorsal; male fore tarsi without long hairs …...... ........................................................... sg. Phrosinella s. str.

- Frontal stripe distinctly narrower than one of parafrontalia (Figures 3 and 17); R 1 often haired dorsall............................................................................… c

c. r 4+5 hairy from base to the middle of its 2nd section dorsally (Figure 18); 5th abdominal tergite completely shining black (Fig. 19); male fore tarsi without long hairs …..................................…… sg. Caspiomyia Rohd.

- r 4+5 hairy only in its 1st section; 5th abdominal tergite more or less lightly dusted anteriorly (Figures 5 and 10); male fore tarsi with paired elongate apical setae at several tarsomeres (Figures 4 and 9)…............................ ...............................................……sg. Asiometopia Rohd.