No. 487] 



A NEW SPECIES OF TELENOMUS 



429 



during their larval existtMice to nHiniiv no food for carrvini: on, 

 at least to a certain extent, tlieir rei)ro(luctive fun.-tion^. It is 

 not unhkelv. however, that their loiinvvity and rej)ro(hietive 

 capacity is increased by such food as they nn'^ht obtain under 

 natural conditions. 



Sr.MMAKY AXl) CoXCLrSIONS. 



1. A species of the proctotrypid genus Telenomus, helicAcd 

 to ])e new, is desci-ihed under the name Tclenonms ashmcadi. 



2. The species, although originally bred from the eggs of 

 pentatomid bugs of the genus Pentatoma, readily attacks the eggs 

 of species of the genera Thyanta and Euschistiis and such eggs 

 ordinarily produce adult j)arasites differing in size from the parent 

 in direct correspondence with the size of the host eggs. 



3. The develo[)ing ])arasite invaiiably occupies a fixed position 

 in relation to the embryo of th(> host, and emerges from the egg 

 through the end from which the bug nyini)h normally hatches. 



of pentatomid egi^s at >onie (h>tanee; four specimens w(mv as 



:.. 15efwe'en two and three minutes are re.piired for ..viposition, 

 after uhieh th.- >nrfaee of the hoM egg is marke.l bv the oxipositor 

 in a characteristic manner, presumably for aidi.ig in its sub.se- 

 (juent detection as unsuitable for attack by other parasites. 



6. The maximum number of pentatomid eggs known to have 

 been successfully parasitized l)y a single specimen of Telenomus 

 ashmeadi is 27; but there is evidence that this number may be 

 greatly exceeded. 



