HYMENOPTERA FROM SARAWAK. 123 



Megdchile amstela, sp. uov. 



Long" : 12 mm. 



llab. Borneo. 



This species may be separated from tarea, with which it 

 agrees closely in colouration, as follows: — 



The clypeus distinctly narrowed, smooth and rounded above ; 

 the base of the mandibles broadly rounded, without a 

 projection in the middle, the outer side not strongly, 

 uniformly punctured. tarea Cam. 



The clypeus not distinctly narrowed above, where it is 

 strongly punctured, and where there is a smooth, 

 transverse keel ; the outer side strongly punctured ; 

 the inner side on the basal part projecting in the middle. 



anistela Cam. 



Head strongly, closely, rugosely punctured ; the top and 

 apex of the clypeus with a smooth, impunctate band ; its hair 

 black ; long and dense on the front and vertex, shorter on the 

 clypeus. The clypeus is distinctly separated from the face by 

 a smooth, shining band, the sides being also bounded by similar 

 bands ; its apex projects slightly and roundly at the sides. 

 Mandibles rugosely punctured, irregularly, strongly, longitudi- 

 nally striated towards the apex ; the apical edge and the lower 

 on the apical half, smooth and shining ; the apical tooth is 

 large ; the subapical is shorter and broader. Thorax closely 

 punctured; the hair on the pleurce, mesonotum and scuteilum 

 is black ; on the median segment it is long and soot-coloured ; 

 on the sternum pale fulvous. Wings hyaline, with a slight, but 

 distinct fulvous tinge ; the nervures are blackish, the stigma 

 dark rufous. Legs black ; the hair pale, mixed with black ; 

 on the base of the tarsi it has a slightly more rufous tint. The 

 abdomen is black; its basal three segments are banded with 

 bright ferruginous pile ; the other segments are thickly covered 

 with bright ferruginous hair, mixed with black in the middle : 

 the scopa is ferruginous. 



On the outer side of the apex of the tibite, in the middle, is 

 a longish, sharp-pointed spine. 



