The Hymenoptera of the Georgetown Museum. 115 



pait of the front to the clypeus, it becoming narrowed below, the clypeus, 

 labrum and mandibles dark red. A stout keel runs down the basal half oi 

 the metanotum in the centre ; it then bifurcates to the outei edge of the apex ; 

 the inner half of the base is shagreened, the outer edge bears stout irregular 

 transverse striae. Female. Length, 5 m.m. 



Thickly covered with short white pubescence. The vertex, sides of 

 front and the face strongly, but not closely punctured ; the frontal depression 

 finely, closely transversely striated. Basal slope of pronotum transversely 

 aciculated, punctured sparsely round the edges. Mesonotum and scutellum 

 strongly, closely punctured ; the latter gradually narrowed from the base 

 to the apex ; its sides furrowed. The sides of the metanotum are broadly 

 rounded, without teeth. Prcpleura? aciculated, the upper h?lf depressed, 

 finely, closely striated at the apex ; there is a longish oval fovea on the lower 

 basal part. Mesopleura? raised to a point in the centre, the basal slope smooth, 

 the apical with oblique irregular stria?, the top at the base and the lower part 

 at the apex with short stria?, the top with the stria? more regular and distinct 

 than the lower edge ; the centre below forms a triangle and is strongly 

 punctured. 



This is not a typical Ceratosmicra, the metanotum not being toothed 

 laterally, nor is the antennal scape dilated above . The latter is long, slender 

 and extends clearly above the top of the vertex. 



Sayella quadrilineata, sp. n. 



Pallid yellow, the ocellar region, occiput except at the eyes, 3 broad lines 

 down the mesonotum, the central of equal width, a line, slightly narrower 

 than that on the middle of the mesonotum, down the middle of the scutellum, 

 a narrower line round the base of the metanotum, the lower parts of the meso 

 and metapleu.ra? broadly, and the apex of the 2nd and the whole of the fol- 

 lowing abdominal segments, black, the black on the abdomen of a deeper 

 tint than on the thorax ; legs : the 4 anterior whitish yellow, the femora 

 slightly infuscated in the middle, the hind legs rufo-testaceous, the apical 

 fourth of the coxa?, an irregular spot on the outer, apical part of the 

 femora, the base and apex of the tibia?, and the tarsi whitish yellow ; 

 the femoral teeth small, black, about 16 in number, the basal about 

 twice the size of the next. Parapsida' furrows deep. Apex of scutellum 

 broadly rounded. Base of metanotum with a moderately broad striated 

 belt, the stria? stout and clearly separated ; this is followed by a 

 row of small area?, those in the centre square ; the outer of these not 

 clearly separated ; next, on either side, are 2 area?, the outer the larger, 

 rounded on the outer side, the inner much narrowed towards the outer, 

 apical side ; next are 2 larger area?, the inner, or central much the larger, 

 twice longer than it is wide at the apex, the base gradually rounded to a 

 point, projecting into the 3rd row of area?, the outer is large, as long as it 

 is wide at the apex, which is rounded inwardly. Metapleura? widely, irregu- 

 larly reticulated. Abdominal petiole nearly as long as the thorax and almost 

 twice the length of the rest of the abdomen ; it is dilated beyond the middle, 



