io;3 



birvH' it is not unlil^cly that those of this species are amons' tliem. It is 

 not nnlikely to be fonnd infesting rye also. 



Tori/iint.s spV This is parasitic on the Isosoma hirvo? infesting the stems 

 of Tri€iisi>is. 



Another species of parasitic Hymenoptera has been determined as a 

 new species of a new genus of the family Enc\irtidu\ 



Eiiriitoina nov. sp. This was reared from the stems of Eli/iniis cdii- 

 (idciisis, the adults emerging in late August. 



J'draptcromaliis iso.snniatis Ashmead, nov. gen. et. sp. This is parasitic 

 on a cell inhaliiting Isosohki. affeeting EJijiiivs. The adults appear in late 

 summer and at once proceed to oviposit in the occupied cells of the 

 Isosomas. That is to say, they have developed in the bodies of their 

 liosts while the latter have l)een in tlie process of development and. now. 

 oviposit in the fully grown larv;i\ there being tluis two broods of the 

 parasite to one of the host. 



Coccideiirj/rtiis [hinis Ashmead. nov. sp. This is doubtless connected 

 in some manner with a coccid that inhabits the stems of Eli/iiiiif!. 



OHyosita (oiicricaiia Ashnu-ad, nov. sp. This is an egg parasite and 

 l)elongs to a genus not before reported from America. A single species 

 is known from Europe and three from the island of Ceylon. 



Elasuiii-s irclislcri Aslimead, nov. sp. Reared from either the stems of 

 Elymus or from the stubble of wheat, in either case it is probably in some 

 way connected with some species of Isosoma. 



Xfiufhov)ie!j)tiix iitfirocldnm Ashmead, nov. gen. et. sp. Reared from 

 stems of Ehjiiuts. )»ut not proliably in connection with the Isosomas. 



The following were reared in considerable numbers from leaves and 

 stems of grasses about Champaign and Urbana, Illinois, within which the 

 host insects were feeding, and doubtless are to be found in Indiana also. 



Poh/iicin-d citriprs Ashmead, nov. sp. Reared from stems of Eraijrostis 

 poaoidcs. an egg parasite Avhose exact host is unknown. 



I'cdohiiis wehstcri Ashmead, nov. sp. Parasitic on a dipterous leaf 

 miner affecting I'diiirinii prolifdriii l»y mining in the tips of the leaves. 

 As I have found the same leaf attack in various localities in Indiana, 

 presumably done liy tlie same dipteroiis insect, it is not at all unlikely 

 that tlie parasite is also found in Indiana, as I have reared them in great 

 numliers from about T'rliana, Illinois. Only one othei- species of this 

 genus is known, and it is also a dipterous parasite. 



