Couplet 1.
History
Nixon (1957) - Subfamily Belytinae - Males (at the start)
Nixon (1957) - Subfamily Belytinae - Males (at the start)
Fourth antennal segment (second flagellar) with a feebly keeled emargination; notaulices absent
Fourth antennal segment never modified; a sexual modification almost always present on the third antennal segment; rarely no modification present at all; notaulices always present except in Synacra (part) and possibly the unknown male of Anommatium
future couplets
Marginalis reduced to a mere point,... ...
Pamis gen .n.
Marginalis very long, longer than t... ...
Cinelaptus gen. n.
Postscutellum, in profile, with a t... ...
Paroxylabis Kieffer
Post scutellum, in profile, without... ...
Aclista Foerster
Gaster with only 4 clearly defined ... ...
Aprestes n. gen
Side of scutellum with a free, hook... ...
Oxylabis
Side of scutellum without a free pr... ...
Belyta Jurine
Radial cell completely closed at ap... ...
Paroxylabis Kieffer
Propodeum very short, its medial ke... ...
Synacra Foerster
Propodeum normal and with a long me... ...
Rhynchopsilus
Eyes not polished, more distinctly ... ...
Opazon Haliday
Notaulices slightly divergent poste... ...
Cinetus Jurine
Notaulices evenly convergent, their... ...
Leptorhaptus Foerster
Pronotum with a more or less distin... ...
Belyta Jurine
Pronotum without an epomia; pronotu... ...
Acropiesta Foerster
Marginalis longer than its distance... ...
Pantolyta Foerster
Petiole fully 4 times as long as it... ...
Miota Foerster
Epomia sharply defined and extendin... ...
Aclista Foerster
Epomia represented at most by a sho... ...
Acropiesta Foerster
Dorsal areas of propodeum with at l... ...
Diphora Foerster
Dorsal areas of the propodeum witho... ...
Pantoclis
Half the apical circumference of th... ...
Acanosema Kieffer
Radialis virtually absent or showin... ...
Psilomma Foerster
Radialis better developed, either s... ...
Zygota Foerster