Robber flies of South Korea
Subfamily Trigonomiminae
Subfamily: Trigonomiminae Diagnostic features
Prosternum fused to proepisternum
Frons approximately of same width at level of antennal insertion and vertex, the latter excavated (eyes not noticeably more distant at vertex then at antennal level)
Postpedicel slender, whip-like
Small, delicate asetose flies

Fused prosternum
Key to the South Korean species of Damalis
1. Hind femur with distinct black band; anterior edge of wing black; 12-15 mm. . . . Damalis andron
- Hind femur yellow; wing entirely clear; 9-10.5 mm. . . . Damalis vitripennis
Damalis andron, male
Damalis andron, male
Damalis andron, female
Damalis vitripennis, male
Damalis vitripennis, male
Damalis vitripennis, female