288 M. W. R. de V. GRAHAM 



oval, nearly i -3 times as broad as high, with the vertex fairly strongly arched ; the genae hardly 

 curved but converging strongly towards the mouth. Eyes separated by about 1 -4 times their 

 own length. Malar space slightly less than half the length of an eye. Breadth of oral fossa 

 nearly 2-5 times the malar space. Clypeus (Text-fig. 208) relatively small, only about twice as 

 broad as long, its anterior margin with a rounded median tooth or tubercle, usually also with 

 some indication of a smaller tubercle on either side of the median one. Mandibles (Text-fig. 

 208) moderately large, somewhat falcate, with their lower margin sinuate ; teeth acute, the 

 lower (outermost) one long, the next two progressively a little shorter, the inner one very small. 

 Head, except clypeus and scrobes, which are polished and virtually smooth, with very fine 

 delicately engraved alutaceous sculpture, rather shiny. Antennae with scape as long or 

 practically as long as an eye ; combined length of pedicellus and flagellum about 1 -25 times the 

 breadth of the head ; pedicellus in profile about 1 -5 times as long as broad, slightly shorter than 

 the first funicular segment ; funicle of uniform thickness, slightly stouter than the pedicellus 

 in profile, its segments, except usually the fifth, at least very slightly longer than broad, the first 

 segment up to 1-5 times as long as broad ; clava slightly broader than the funicle, about three 

 times as long as broad, slightly shorter than the three preceding funicular segments together ; 

 sensilla of flagellum relatively sparse. 



Thorax about i-6 times as long as broad. Mesoscutum 1-5 to 1-7 times as broad as long, 

 moderately shiny, with very fine delicately engraved reticulation, whose areoles are nearly 

 isodiametric ; mid lobe with a few hairs, which arise from distinct pits ; notauli deep, nearly 

 straight. Axillae mainly sculptured like the mesoscutum, but their inner angles are more shiny 

 with the sculpture weaker or nearly obsolete. Scutellum slightly longer than broad, a little 

 longer than the mesoscutum, strongly convex in the transverse axis, bearing three to four pairs 

 of bristles in two longitudinal rows ; frenum marked off by a fine, superficial grooved line ; the 

 main portion of the scutellum has sculpture like that of the mesoscutum, perhaps very slightly 

 finer, but the frenum has rather wider-meshed reticulation ; the scutello-axillar sutures run 

 forward as straight lines to meet the hind margin of the mesoscutum somewhat mesad of the 

 hind ends of the notauli, the base of the scutellum being about one fifth the breadth of the 

 mesoscutum. Dorsellum shiny, virtually smooth. Propodeum unusually long, medially 

 almost half as long as the scutellum ; median carina fine, complete, the surface between it and 

 the spiracles shiny with at most some weak alutaceous sculpture ; plicae absent ; spiracles 

 circular, separated by about one third their diameter from the metanotum ; callus shiny and 

 almost smooth, with three to five bristles. Metapleuron and mesepimeron shiny, with some 

 very weak reticulation ; mesepimeron distinctly separated from the mesepisternum, ovate- 

 subtriangular, less than twice as long as broad ; the triangular area in front of the mesepimeron 

 is smooth and polished ; mesosternum, except laterally, polished and virtually smooth, its 

 mesolcus absent. Postspiracular sclerite moderately shiny, with moderately fine, slightly 

 raised reticulation. Legs not stout ; hind coxae rather slender, about 2-5 times as long as 

 broad, shiny and weakly alutaceous, their dorsal surface bare ; spur of mid tibia about two 

 thirds the length of the first tarsal segment. Fore wing about twice as long as broad ; costal 

 cell broad (length : breadth about 8 : 1), its lower surface sparsely hairy, its upper surface bare 

 except for a row of 6 to 11 hairs in the distal third ; basal cell bare except just near the pilose 

 basal vein ; speculum closed below, on the upper surface of the wing moderate-sized though not 

 extending below the marginal vein, on the lower surface more or less effaced by scattered hairs ; 

 there is sometimes a small bare area in the angle formed by the bases of the postmarginal and 

 stigmal veins, but usually this is absent ; wing beyond the speculum moderately thickly haired ; 

 marginal vein 1-2 to 1-4 times as long as the postmarginal vein and 2-25 to 2-35 times as long 

 as the stigmal vein, the latter slender ; stigma small, suboval, with a distinct uncus. 



Gastral petiole nearly as long as broad, about two thirds the median length of the propodeum, 

 shiny and almost smooth, its sides nearly parallel, diverging very slightly caudad. Gaster 

 obovate-subcircular, nearly as broad as but much shorter than the thorax, rounded apically, 

 depressed dorso-ventrally ; dorsally the surface beyond the basal tergite is slightly sunken, 

 ventrally the gaster is slightly convex ; the basal tergite occupies somewhat more than one 



