Bacuma Cameron

Quicke, Donald L. J., Guy, Travis J., Noort, Simon Van, Broad, Gavin R. & Butcher, Buntika A., 2017, New species of Bacuma Cameron (Hymenoptera: Braconidae: Braconinae) from Kenya and West Darfur with a key to species, Zootaxa 4263 (1), pp. 43-71 : 45

Bacuma Cameron

Diagnosis. Body length (females) 11–25 mm. Antennae shorter than fore wing, distinctly widening after base. Terminal flagellomere blunt. Pre-apical flagellomeres considerably wider than long. Scapus cylindrical, longer ventrally than dorsally, with medio-ventral, apical false ledge. Face foveate-rugose. Clypeus separated from face by sculptured groove. Frons deeply impressed behind antennal sockets. Mesosoma smooth and polished with sparse setosity. Notauli smooth and impressed on anterior 0.5-0.8 of mesoscutum. Scutellar sulcus narrow, usually finely crenulate. Mesopleuron with deep, complete and often sharply-defined mesepisternal groove (see Huber & Sharkey 1993). Second submarginal cell long, vein 3RSa 1.9-2.6 × rs-m. Fore wing vein (RS+M)a (=1-SR+M) usually distinctly curved shortly after arising from 1-M, with 1RS distinct (but virtually straight and 1RS virtually absent in B. kayserae sp. nov.); vein 1cu-a interstitial or marginally postfurcal, straight or weakly curved, often distinctly reclivous; vein 2CUa (=3CU-1) distinctly angled and usually swollen posteriorly. Fore and mid tibiae with a longitudinal row of pegs and an apical transverse row of pegs, anteriorly. Metasoma merinotoid (i.e., long, more or less parallel-sided, rather rigid, with six well-exposed tergites: Quicke 1984), largely with foveate-rugose sculpture. Second metasomal tergite with a broad, smooth or striate, mid-basal triangular area and with a pair of sublateral, posteriorly converging or sub-parallel grooves. Tergites 3 and 4 (sometimes also 5) with midline often raised or ridge-like and longitudinally striate. Hypopygium large, acute and usually protruding posteriorly beyond tergites. Exserted part of ovipositor 1.5 to 3.5 × longer than metasoma; apex with a dorsal nodus and ventral serrations.

Biology unknown.

Table 1 summarises size and some colour features of the known Bacuma species.