Belonopterygini, Navás, 1913

Tauber, Catherine A., 2021, The New World Belonopterygini (Neuroptera: Chrysopidae): descriptions of a new genus and species from the West Indies and comparisons among the genera, Zootaxa 4975 (3), pp. 509-543 : 541

Part 4. Key to New World Genera of Belonopterygini

1. Forewings and hindwings with distinct (red, black, or brown) markings.......................................... 2

1’. Forewings and hindwings without markings................................................................ 3

2. Wings narrow, with lanceolate tips, membrane marked with red tinge; venation without splayed pattern...................................................................................... Belonopteryx arteriosa (Gertstaecker)

2’. Wings moderately broad, with round tips; alar membrane marked with black or brown, not red; at least some parts of forewing with venation in splayed pattern.............................................................. Vieira Navás *

3. Body without bold, dark markings, usually stout.............................................. Nacarina Navás **

3’. Body with dark, bold markings, stout or delicate............................................................. 4

4. Prothorax heavy, shield-like, with four pairs of black spots dorsally; body stout................. Abachrysa eureka Banks

4’. Prothorax broad, but not particularly heavy, with two pairs of elongate black lines (one lateral, one sublateral), no spots; body delicate............................................................... Pantaleonius toschiorum Tauber , n.sp.