Polycentropodidae, Ulmer, 1903

Chamorro, Maria Lourdes & Holzenthal, Ralph W., 2010, 2582, Zootaxa 2582, pp. 1-252 : 44

Key to Genera of New World Polycentropodidae

1. Spur formula 2,4,4............................................................. Cernotina Ross.

- Spur formula 3,4,4.......................................................................... 2

2(1) Fork 3 of forewing present................................................ Neureclipsis McLachlan.

- Fork 3 of forewing absent ( Fig. 2C)............................................................ 3

3(2) Fork 1 of forewing absent.................................................................... 4

- Fork 1 of forewing present ( Fig. 2C)............................................................ 5

4(3) Median cell of forewing open.................................................... Cyrnellus Banks.

- Median cell of forewing closed................................................ Nyctiophylax Brauer.

5(3) Hind wing discoidal cell closed............................................................... 6

- Hind wing discoidal cell open................................................................. 7

6(5) Fork 1 of hind wing absent............................................. Holocentropus McLachlan.

- Fork 1 of hind wing present............................................... Plectrocnemia Stephens.

7(5) Fork 1 of hind wing usually absent, R 2+3 unbranched ( Fig. 2D); median fork of hind wing petiolate (with respect to m-cu crossvein); forewing Cu 2 vein distally bent beyond arculus, recurving proximad and joining anal veins 2+3 (A 2+3) at arculus; forewing anal vein 1 (A 1) lightly pigmented, positioned anteriorly, approaching Cu 2 vein and distally meeting cu-a 1 and a 1 - a 2 crossveins (last 2 characteristics not present in P. nayaritensis or P. beccus )........................................................................... Polyplectropus Ulmer.

- Fork 1 of hind wing present, R 2+3 branched; median fork of hind wing rooted (with respect to m-cu crossvein); forewing Cu 2 vein not recurved but bent gradually towards arculus (15F); forewing A 1 as strongly pigmented as other longitudinal veins and fused with A 2+3 ..................................... Polycentropus Curtis.