103 



larvoe it is not uiilikoly tluit those of tliis species are among them. It is 

 not unlikely to he found infesting rye also. 



Tonjiiiiis spV This is parasitic on the Isosoma larva^ infesting the stems 

 of Tricxspis. 



Another species of parasitic Hymenoptera has been determined as a 

 new species of a new genus of the family Encj/rtidn'. 



Euyijto)i>a nov. sp. This was reared from the stems of Eh/niKsi cdn- 

 (iflcni^is, the adults emerging in late August. 



Para ptcromal IIS imsomaiis Ashmead, nov. gen. et. sp. This is parasitic 

 on a cell inhaljiting Isosoiiki. affecting Eli/nnis. 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 

 hosts while the latter have been in the process of development and. now. 

 oviposit in the fully grown larva\ there being tlius two liroods of the 

 parasite to one of the host. 



Coccideiicijrttis fluriis .Vshmead.. nov. s]). This is (bmlitless connected 

 in some manner Avith a coccid that inhabits the stems of Ehjiniis. 



01i(josita. anicricana Ashmead, nov. sp. This is an egg parasite and 

 belongs to a genus not before reported from AmeiMca. A single species 

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



ElaaniKS tvcbstcii Ashmead. nov. sp. Ifeared from either the steins of 

 Elymus or from the stub1)lo of wheat, in t ither case it is prol)al»ly in some 

 way connected with some species of Isosoma. 



Xanthoencijrtus nUjroclants Ashmead, nov. gen. et. sp. Reared from 

 stems of EUjmus, but not probably 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. 



Pohjneura citripcs Ashmead, nov. sp. Reared from stems of Eragrustis 

 poiioklcs, an egg parasite Avhose exact host is unknown. 



Pedobiits tcchstcri Ashmead, nov. sp. Parasitic on a dipterous leaf 

 miner affecting Paiiieiiin prolifomi by mining in the tips of the leaves. 

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

 presumably done l)y the same dipterous insect, it is not at all unlikely 

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

 numbers from about I'rbana, Illinois. Only one other species of this 

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



