Campyloneurus Szépligeti

Li, Yang, Achterberg, Cornelis Van & Chen, Xue-Xin, 2020, Two genera Campyloneurus Szépligeti and Iphiaulax Foerster in China, with the descriptions of fourteen new species (Hymenoptera, Braconidae, Braconinae), Zootaxa 4884 (1), pp. 1-67 : 4-5

Key to genera Campyloneurus Szépligeti , Cyanopterus Haliday, Craspedolcus Enderlein, Iphiaulax Foerster and Maculibracon Li, van Achterberg & Chen

Noted to the listed genera have been confused frequently because of similarities in body size and colour, colour pattern of wing membrane and shape of 1-SR+M vein of fore wing.

1. Propodeum more or less tuberculate medio-posteriorly; median carina of first tergite high and medial area steep anteriorly in lateral view; vein 1r-m of hind wing long, as long as or longer than vein SC+R1; vein cu-a of fore wing distinctly postfurcal and inclivous; upper valve of ovipositor with nodus, lower valve with small teeth; face granulate and shiny........................................................................... Maculibracon Li, van Achterberg & Chen, 2017

- Propodeum flattened medio-posteriorly; median carina of first tergite absent or low in lateral view; vein 1r-m of hind wing short, usually shorter than vein SC+R1; vein cu-a of fore wing subinterstitial or shortly postfurcal and perpendicular; ovipositor and face variable...................................................................................... 2

2. Ovipositor usually robust, its upper valve often strongly enlarged and without nodus and at least twice wider than lower valve in lateral view, lower valve without teeth and narrow, if ovipositor exceptionally slender or lower valve with very minute teeth then second metasomal tergite without medio-basal area or medio-longitudinal carina and scapus robust................................................................................................ Iphiaulax Foerster, 1863

- Ovipositor slender, its lower valve smooth or with distinct to minute teeth and its upper valve medium-sized and/or with small nodus, upper valve often not or weakly enlarged, if rarely obviously enlarged then second metasomal tergite with medio-basal area or complete medio-longitudinal carina; scapus variable, slender to robust..................................... 3

3. Ovipositor aberrant, its upper valve smooth and without nodus, lower valve usually without teeth and narrow, rarely lower valve with very minute teeth; scapus concave apico-laterally and more or less protruding ventrally; fifth tergite not protruding apico-laterally......................................................... Campyloneurus Szépligeti, 1900 (part)

- Ovipositor normal, its lower valve with distinct to minute teeth and its upper valve medium-sized and/or with small nodus; scapus usually concave apico-laterally and weakly to strongly protruding ventrally; corners of fifth tergite may be protruding apico-laterally........................................................................................ 4

4. First metasomal tergite without distinct median carina; clypeus without dorsal carina.......... Cyanopterus Haliday, 1835

- First tergite with median carina posteriorly; clypeus with weak dorsal carina...................................... 5

5. Vein 3-SR of fore wing 2.5–3.0 × vein 2-SR; first tergite with long and distinct median carina; fore wing slender (0.4–0.7 × its length surpassing metasoma); hind wing with 3–5 subbasal bristles; scapus elongate; face largely smooth; third tergite with distinct antero-lateral grooves....................................................................................................................................................... Craspedolcus Enderlein, 1920

- Vein 3-SR of fore wing often 1.5–2.6 × vein 2-SR; first tergite with short to medium-sized (and usually weak) median carina; fore wing robust (about 0.5 × its length surpassing metasoma); hind wing with 1–2 subbasal bristles; scapus often less slender; face often rugose or punctate; antero-lateral grooves of third tergite variable, weak to distinct.............................................................................................. Campyloneurus Szépligeti, 1900 (part)