648 HYMENOPTEROUS INSECTS— HOWARD AND ASHMEAD. vol. xviii. 



except venter, the membranous margins of first and second segments 

 and lateral dorsal spots on third and fourth segments, which are yellow 

 and sometimes confluent, is black; the plate of first segment is long 

 trapezoidal, more than twice as long as wide at apex and shagreened 

 ai)ically ; the second segment is as long as the fourth, feebly shagreeued ; 

 the third is verj- short. 



Male. — Length, 2..") mm. Agrees well with female, except that the 

 antenn;e are longer, entirely black, while the abdomen is smaller, nar- 

 rower and except the basal half of venter and lateral nmrgins of basal 

 segment, wholly black; the second segment, as well as the following, 

 smooth and polished. 



Eahitat. — Punduloya, Ceylon. 



Types. — Ko. 3270, U.S.IST.M. Thirty-six females and fourteen males 

 •bred by Mr. E. Ernest Green from larva of Tirachola plagiata, Walker. 



