Psilomma, Forster, 1856

Chemyreva, V. G. & Kolyada, V. A., 2021, Review of the subtribe Psilommina (Hymenoptera: Diapriidae, Belythinae) from Russian fauna, Far Eastern Entomologist 436, pp. 1-34 : 26-27

Key to species of the genus Psilomma

1. Anterior scutellar pit bare inside ( Figs 81 , 88 ); head with sparsely pubescence above: pubescence of gena distinctly denser than pubescence of vertex and occiput ( Figs 82 , 86 ); male A3 without projection at base of emargination ( Figs 84 , 92 ) ................................... 2

– Anterior scutellar pit pubescent inside, covered by upstanding setae (Figs 94, 97, 101, 105); head with dense pubescence above: pubescence of gena, vertex and occiput similar (Figs 97, 101); male A3 with small projection at base of emargination (Figs 99, 106) ...... ........................................................................................................................................… 3

2. Pronotal anterior corners weakly projecting, rounded ( Fig. 82 ); medial furrow at the base of T2 deeper, wider and always longer than lateral furrows ( Fig. 81 ); S2 of female without round projecting at base in lateral view ( Fig. 79 ) .....................… P. calaris sp. n.

– Pronotal anterior corners strongly projecting, sharped ( Fig. 86 ); medial furrow at the base of T2 no deeper, no longer (rare slightly longer) and no wider than lateral furrows ( Fig. 88 ); S2 of female with round projecting at the base in lateral view .... P. dubia Kieffer

3. Face slightly wider than high (Fig. 95); female А9–А14 about as wide as long (Fig. 96); male antenna yellow or pale brown, А3–А14 with short recumbent pubescence (Figs 98, 99) .................................................................................................… P. fuscicornis Kieffer

– Face slightly higher than wide (Fig. 102); female А9–А14 distinctly longer than wide (Fig. 103); male antenna brown, А3–А14 with long semi-erect pubescence (Figs 104, 106) ...............................................................................................… P. fusciscapis Förster

Figures

Figs 79–85. Psilomma calaris sp. n., ♀ (79–83) and ♂ (84, 85): 79 – habitus, lateral

Figs 86–93. Psilomma dubia, ♀ (86–90, 93) and ♂ (91, 92): 86 – head and mesosoma,