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Robber flies of South Korea
Subfamily Dioctriinae
Key to the South Korean Species of the Genus Dioctria Meigen
1. Postpronotal lobe (humeral callus) yellow . . . 2
- Postpronotal lobe black . . . 3
2. 1st antennal segment 2 times as long as segment 2; wings faintly spotted black medially . . . Dioctria humeralis eoa Lehr
- 1st antennal segment less than 2 times as long as segment 2; wing clearly black on basal half only . . . Dioctria vainsteini Lehr
3. Abdomen jet black, evenly covered with fine yellow hair; hind femur yellow . . . Dioctria keremza Richter
- Abdomen with pale yellow markings; hind femur with distinct, broad black band, apices yellow . . . Dioctria aestivis Esipenko

Dioctria aestivis, male

Dioctria aestivis, female

Dioctria aestivis, female

Dioctria humeralis eoa, male

Dioctria humeralis eoa, male

Dioctria humeralis eoa, female

Dioctria keremza, male

Dioctria keremza, male

Dioctria keremza, female

Dioctria vainsteini, male

Dioctria vainsteini, male

Dioctria vainsteini, female
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