90 HYMENOPTEUA FJIOM SARAWAK. 



fourth ; the second shortly beyond the middle ; the transverse 

 basal nervure is interstitial ; the accessory nervure in the hind 

 wing is received shortly beyond the cubital. Abdomen densely 

 pruinose ; there are two large marks, wider than long on the 

 base of the second segment, two marks on the base of the fourth, 

 two larger marks on the base of the sixth and the whole of the 

 seventh, yellow. The tibial and tarsal spines are \ellow. 



Allied to P. vayabundus Sm., which, inter alia, may be 

 known from it by the second cubital cellule being twice the 

 width of the third. 



Poijipilus Hiatus, sp. now 



Black, pruinose ; the wings fuscous-violaceous ; the first 

 recurrent nervure is almost interstitial ; the third cubital cellule 

 at the top shorter than, at the bottom longer than, the second. ? 



Long : 13-14 mm. 



Head wider than the thorax, the temples very narrow, the 

 occiput transverse. Eyes large, distinctly converging above ; 

 the ocelli in a triangle ; the hinder separated from each other by 

 about the same distance they are from the eyes. (Jlypeus 

 transverse at the apex in the middle ; the sides broadly rounded. 

 Prothorax large ; the basal part distinctly separated all round ; 

 at the sides it projects broadly. Median segment broadly 

 rounded from the base to the apex. Wings fuscous-violaceous, 

 the posterior lighter in tint ; the second cubital cellule at the 

 top is distinctly longer, at the top distinctly shorter, than the 

 third ; the transverse basal nervure is almost interstitial, as is 

 also the first recurrent (as in the Salius-Mygnimia section); the 

 second is received almost in the middle of the cellule ; the 

 accessory nervure in the hind wings is interstitial. Legs black ; 

 the tibial and tarsal spines black ; the long spur of the hinder 

 tibiae does not reach to the middle of the metatarsus. Abdomen 

 smooth ; the last segment thickly covered with long black hair. 



There is no transverse furrow on the second ventral 

 segment ; the meta-thoracic spiracles are large, raised and 

 bordered behind by a furrow ; the tibial and tarsal spines are 

 long ; the underside of the tarsi are thickly spined ; the tarsal 

 claws have a stout, sharp subapical tooth. 



Comes near to P. perplexus Sm. 



