HYMENOPTERA FROM SARAWAK. 79 



and of the third with a broad band of depressed clear white 

 pubescence ; the basal ventral segment has a straight, rounded 

 keel iu the centre ; its sides are stoutly punctured ; its apex has 

 an oblique slope ; the pygidium is closely punctured and covered 

 with black hair ; its apex is depressed ; there is no defined area 

 on it ; the epipygium is flat, closely and strongly punctured and 

 has its sides margined. 



Comes close to M. gracillima, »Sm. 



Mutilla mamblia, sp. now 



Black, the scape of the antennae, the thorax and the femora 

 rufous, two oval spots of silvery pubescence on the base of the 

 second abdominal segment; the whole of the third segment 

 covered with depressed silvery pubescence ; the sides of the 

 pygidium fringed with silvery hair. 9 . 



Long : 11 mm. 



Hab. Kuching, Sarawak. 



This species comes near to M. prosper pitid Sm.- which dif- 

 fers from it in having the legs ferruginous except that the 

 knees and tarsi are slightly fuscous ; the pubescence on the 

 thorax is reddish-brown. The present species conies close to 

 M. gispa Cam. but, apart from the difference in colour- 

 ation, it may le known from it by the perfectly smooth pygi- 

 dium. 



Scape of antennas rufous, covered with pale fulvous hair ; 

 the Hagellum black, stout : the third joint twice the length of 

 the fourth which is shorter than the fifth. Head nearly as wide 

 as the thorax; closely rugosely punctured: the punctures 

 longer than broad; the antennal tubercles black. Face an I 

 clypeus smooth and shining, sparsely covered with long p le 

 fulvous hair. Mandibles rufous, black at the apex ; the palpi 

 blackish fuscous, darkest at the base ; the subapical tooth 

 straight and oblique at the apex. Thorax twice longer than 

 broad, slightly narrowed in the middle ; the base rounded with 

 the edge irregular ; the apex transverse, the sides above rjund- 

 ed ; the sides of the median segment sharply denticulate ; the 

 outer edge of the pronotum is stoutly keeled above ; the pleura? 

 smooth, impunctate ; the upper part of the thorax is covered 

 with longish black hairs. Legs black ; all the coxae, trochan- 



