2i 4 M. W. R. de V. GRAHAM 



pedicellus, but thickening distad, its first segment quadrate, the second and third subquadrate, 

 the fourth usually very slightly transverse, the fifth and sixth slightly transverse ; clava 

 slightly more than twice as long as broad, its length about equal to that of the three preceding 

 funicular segments together ; sensilla long, in a single row on each segment, sparse on the 

 proximal segments but rather more numerous on the distal ones and on the clava. 



Thorax hardly more than i -5 times as long as broad, very strongly arched dorsally so that 

 the dorsellum and propodeum descend at an angle of nearly 90° relative to the plane of the 

 mesoscutum and scutellum. Pronotum with sides converging strongly forwards, the shoulders 

 not prominent. Mesoscutum about i-6 times as broad as long, moderately convex, its hind 

 margin very strongly sinuate, moderately finely reticulate discally where the sculpture is 

 distinctly raised, finely on the side lobes where the sculpture is almost alutaceous ; notauli 

 deep only in front, otherwise superficial. Scutellum almost as long as the mesoscutum, slightly 

 longer than broad, strongly convex, with fine reticulation which is hardly raised above the 

 general surface ; frenum marked off by a fine impressed line ; the grooved lines which separate 

 the scutellum from the axillae become deep anteriorly, where they curve round and join, so 

 that the scutellum touches the mesoscutum only at a point. Dorsellum nearly smooth, slightly 

 shorter than the frenum. Propodeum medially about half as long as the scutellum, almost 

 truncate posteriorly ; area between the spiracles shiny, finely reticulate with its sculpture only 

 slightly raised ; median carina fine, complete or slightly broken medially ; nucha a polished, 

 lunate strip ; spiracles subcircular, close to the metanotum ; spiracular sulci shallow, alutac- 

 eous ; callus polished externally, otherwise with numerous hairs arising from small tubercles. 

 Metapleuron shiny, alutaceous ; mesepisternum with a polished triangular area below the hind 

 wing, otherwise (including the mesepimeron) finely reticulate with slightly raised sculpture ; 

 mesosternum shiny, weakly alutaceous, mesolcus fine but distinctly impressed. Postspiracular 

 sclerite reticulate, finely below and more coarsely above, but without, or with only traces of, 

 an oblique carina. Legs somewhat short and stout ; hind coxae with a few hairs on their 

 dorsal surface. Fore wing twice as long as broad ; upper surface of costal cell bare or with 

 two to three hairs at its apex, its lower surface with a complete row of hairs plus some scattered 

 ones in the distal half ; basal cell bare except for a few hairs just below the submarginal vein, 

 open below ; basal vein pilose ; speculum closed below, on the upper surface of the wing 

 extending to the base of the marginal vein, on its lower surface with some scattered hairs ; 

 marginal vein 1-25 to 1-35 times the length of the stigmal vein ; postmarginal vein 1-4 to 1-5 

 times as long as the marginal ; stigmal vein weakly curved, thickening slightly towards the 

 stigma which is subcircular and large, its height about two-thirds the distance separating it 

 from the front edge of the wing. 



Gastral petiole almost cordiform, about two thirds the length of the propodeum, slightly 

 (up to 1 >5 times) broader than long, nearly smooth except posteriorly where it has a few very 

 fine weak transverse striae. Gaster ovate, slightly longer than and about as broad as the 

 thorax, 1 -8 to 2 times as long as broad ; dorsally hardly sunken ; the basal tergite occupying 

 about one third of the total length, with a large basal fovea, and having its hind margin some- 

 times weakly emarginate medially ; last tergite slightly broader than long ; ovipositor sheaths 

 hardly exserted ; ventrally convex, the hypopygium not visible but probably extending about 

 half way along. 



o\ Differs from the female as follows : 



Antenna (Text-fig. 165). Scape slightly shorter, its length somewhat less than the transverse 

 diameter of an eye, only about three times as long as its maximum breadth, slightly expanded 

 in its upper half, where there is an oblong, oblique shiny boss (on the outer aspect of the scape) 

 which extends nearly half way down ; combined length of pedicellus and flagellum slightly 

 greater than the breadth of the head ; pedicellus very slightly shorter, not or hardly longer 

 than the first funicular segment ; flagellum only very slightly clavate, proximal funicular 

 segments slightly elongate, the first about 1-5 times as long as broad, the fifth and sixth sub- 

 quadrate ; clava about three times as long as broad, tapering to a sharper point ; flagellum 



