A Third Contribution to the Knowledge 

 of the Hymenoptera of Sarawak. 



By. P. Cameron. 



This paper is in continuation of one on the Hymenoptera 

 of Sarawak based on material collected by Mr. Robert Shelf ord, 

 M. A., published in the journal of the Straits Branch Royal 

 Asiatic Society in 1903 and another in 1903. 



Stirocorsia cariniceps, sp. nov. 



Black, the hind trochanters and femora red, the hind 

 tibiae thickly covered with white pubescence which gives it a 

 white appearance ; the fore wing fuscous-violaceous ; a hyaline 

 cloud extends from the base of the cubitus to near the base of 

 the radius and extending to the oppisite side of the wings, the 

 lanceolate cell being also hyaline ; the basal half of the hind 

 wings hyaline, the apical lightly f uscous-violaceous ; the stig- 

 ma and nervures black. Temples, pleura, sternum, apex of 

 abdomen and legs covered with white pubescence. $ . 



Length 13-14 mm. 



Kuching. November. 



On the sides of the vertex are 5 projections, rounded in front 

 and arranged one above the other like the steps of a stair ; the 

 upper part of the front closely, strongly rugosely punctured, 

 the lower is more irregularly and coarsely reticulated, with a 

 smooth space, longer than broad, in the centre above ; in the 

 centre below is a somewhat triangular depression — the broad 

 part above — and having, at the top, a large deep round fovea. 

 Front coarsely, irregularly punctured-reticulated, more closely 

 above than below, where the reticulations are more widely 

 separated and irregular ; in the centre near the apex is a large, 



R, A. Soc, So. 44, 1905. 



