BRUES: PARASITIC HYMENOPTERA. 99 



punctate line, the parapsidal furrows forming a semicircle; otherwise 

 sparsely foveate-punctate. Axillae rugose, more finely so laterally, 

 separated basally by a small fovea and from the scutellum by straight 

 oblique, foveate furrows; scutellum smooth along its centre; with 

 coarse, sparse punctures laterally. Propodeum with a few very large 

 irregularly placed shallow punctures, with a smooth longitudinal 

 impression on each side extending to the base of the hind coxa and 

 below this with a coarsely reticulate ridge; its sides below the ridge 

 irregularly wrinkled, nearly smooth. Mesopleurae pubescent in 

 front, smooth and shining behind ; obliquely raised at the middle and 

 depressed behind towards the propodeum. Abdominal petiole two 

 thirds as long as the thorax, transversely striate above, irregularly 

 rugose on the sides and below; with some stiff white hairs laterally, 

 the spiracles at the middle. Remainder of abdomen polished. Clasp- 

 ers short, no longer than broad with the apex regularly rounded and 

 beset with a short dense fringe of hairs; smooth basally, punctate 

 and hairy on apical half. Hind coxae transversely striate, with an 

 elongate smooth area externally near the base; femora with a promi- 

 nent tooth at basal third, middle and apical third ; two blunt denticles 

 follow after the basal tooth, several acute ones after the middle tooth 

 and a decreasing series of five after the apical tooth. Stigma rather 

 broad, half the width of the radial cell which is complete except at 

 extreme apex; cubital vein distinct almost to wing tip; transverse 

 median vein inserted one third of its length before the basal vein, so 

 that the petiole of the discoidal cell is very short; second discoidal 

 cell open below, but with the basal and apical sides complete, the 

 vein forming the apical side swollen below the tip. 



This is a typical member of the genus and apparently distinct from 

 its congeners, all of which occur in the Indo-Malayan region. In all 

 the genera of this undoubtedly old family the structural characters, 

 particularly of body proportions and sculpture, appear to be very 

 firmly fixed and to show scarcely any variation. I append a key, 

 based mainly on color, which will serve to distinguish the present 

 species from the others. 



1. Abdomen and most of body yellowish brown small species 5-8 mm. 



P. pygmaeus Enderl. 

 Abdomen, beyond base of second segment, black 2, 



2. Abdomen entirely black 3. 



Abdomen, black, the petiole reddish 6. 



3. Head black, orbits white or buff P. orbitalis, sp. nov. 



Head red or red and black, sometimes varied with yellowish. . . 4. 



