Tu as raison, la nervation alaire a un bug ! Mais ce serait quoi, alors ?
Je ne sais pas chez les Apocrites, mais chez les Symphytes il y a souvent des nervures en trop ou manquantes.
Ajouté moins d'une heure après :
Si c'est bien une Helconini, ce ne peut être que ce genre et donc cette espèce,
cf. la clé de cette tribu. Peut-elle être d'une autre tribu ?
1. Hind femur with a ventral tooth (figs. 36, 38, 40, 41)
2.
Marginal cell of hind wing distinctly widened apically (figs. 25, 40); occipital carina remains separated from hypostomal carina above
base of mandible, but connected near
apex of hypostomal carina below level of mandible
base;
antenna of 
with white band; medio-posterior depression of
scutellum wide and usually comparatively short (fig. 29); area in front of
tegula with a more or less developed carina and crenulate; pronope deep and usually close to anterior margin of
pronotum (fig. 27);
hind tarsus whitish;
propleuron flattened (except in Nearctic spp.) =>
Wroughtonia Cameron
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Marginal cell of hind wing (sub)parallel-sided or slightly widened apically (figs. 35, 37); occipital carina connected to hypostomal carina distinctly above level of
base of mandible (cf. fig. 17);
antenna of without white band; medio-posterior depression of
scutellum narrower and longer (cf. fig. 13); area in front of
tegula without carina and puct(ul)ate; pronope shallow, if deep then distinctly removed from anterior margin of
pronotum;
hind tarsus yellowish or dark brown;
propleuron at least partly convex =>
Helconidea Viereck
Ajouté moins d'une heure après :
TRIBE HELCONINI FOERSTER
Diagnosis. — Frons with medial lamella or triangular horn (fig. 9); vein 1-SR of fore wing distinct (figs. 5, 25, 35, 40), occasionally obsolescent in some Helcon tardator specimens; vein 2A of fore wing distinct (fig. 40) and usually mainly unsclerotized (figs. 25, 35, 37); propodeal spiracle situated medially (fig. 1); outer apex of fore tibia with large and wide lamella (figs. 3, 30); hind femur partly rugose ventrally (figs. 10, 38, 39); inner hind spur shorter or subequal to outer hind spur and narrower (fig. 10).
Contains three genera in the Palaearctic region: Helcon Nees, 1814, Wroughtonia Cameron, 1899, and Helconidea Viereck, 1914. Parasites of wood boring coleopterous larvae, belonging to the Cerambycidae, Buprestidae, Curculionidae, and Melandryidae (= Serropalpidae)
