Doryctobracon Enderlein

Wharton, Robert & Norrbom, Allen L., 2013, New species and host records of New World, mostly Neotropical, opiine Braconidae (Hymenoptera) reared from flower-infesting, stem-galling, and stem-mining Tephritidae (Diptera), ZooKeys 349, pp. 11-72 : 19-20

Doryctobracon Enderlein

Doryctobracon Enderlein, 1920: 144. Type species: Doryctobracon conjungens Enderlein, 1920 [a junior subjective synonym of Doryctobracon crawfordi (Viereck, 1911)]. Original designation.

Parachasma Fischer 1967: 7. Type species: Opius zeteki Muesebeck, 1958. Original designation. Synonymized by Fischer (1977: 949).

Diagnosis.

Mandible without basal lobe ventrally. Labrum varying from almost completely concealed to partially but distinctly exposed ventrad margin of clypeus. Clypeus with ventral margin varying from weakly sinuate, nearly truncate, to strongly sinuate. Malar space distinct, malar sulcus absent. Occipital carina completely absent. First flagellomere equal to or slightly shorter than second, with dense patch of placoid sensilla laterally. Propleuron without oblique carina dorsad propleural flange. Pronotum lacking pronope but sometimes with small median pit adjacent posterior margin. Notauli usually distinctly impressed anteriorly, weak to nearly absent in some species. Supramarginal carina absent. Mesoscutal midpit weak to absent. Precoxal sulcus, sternaulus, and postpectal carina absent. Hind tibia dorsal-posteriorly without basal carina. Tegula overlapping and concealing most of basal wing sclerite. Fore wing stigma broad, distally discrete, with r1 arising near its midpoint; second submarginal cell short; m-cu nearly always (95%) antefurcal to interstitial with respect to 2RS, rarely weakly postfurcal. Hind wing RS absent, at least basally; m-cu long, nearly reaching wing margin, well-pigmented. T1 with deep laterope; dorsope absent. T2 and following terga without sculpture. Ovipositor long, always extending well beyond apex of metasoma.

Remarks. Members of this genus are native to the New World and are readily recognized by the combination of a short second submarginal cell (Fig. 14), complete absence of the occipital carina (Fig. 1), unsculptured notauli, and position of fore wing m-cu relative to 2RS. Species of Doryctobracon most closely resemble those species of Diachasmimorpha Viereck with reduced occipital carinae but differ primarily in the position of fore wing m-cu, the larger tegula, and the elevated posterior margin of the pronotum dorsally. Fischer (1977) and Wharton (1997a) provide redescriptions of Doryctobracon . Wharton and Marsh (1978), Fischer (1977) and Wharton and Yoder (2012) offer keys to species. There are two well-defined species groups based on differences in propodeal sculpture ( Wharton 1997a). Hosts are known for nearly all described species, and all are parasitoids of larval Tephritidae , primarily of frugivorous species.