THE CANADIAN ENTOMOLOGIST. 323 



T. pacifica Harvey, as idenlified by Mr. Dod, is altogether different 

 from any of the species above mentioned in appearance and structure. 

 For comparison the genitaUa are shown at figure 8 on the plate. 



My conception of the synonymy of our species of Tceniocainpa of the 

 instabilis section is as follows : 



T. instabilis Fitch. 



alia Auct., in error, not Guenee. 

 van hibisci Gn. 

 confluens Morr. 

 T, Brucei Smith. 

 %pacifica Auct. 

 T. malora Smith. 

 T. fiubilata Smith. 

 T. inflava Smith. 

 T. inherita Smith. 

 T. ^-fasciata Smith. 

 2\ proba Smith. 

 T. pacifica H arvey. 



TcBiiiocampa latirefia Dod has no type, and is impossible to apply 

 except as a synonym of the tx\\\xQ. pacifica Auct. series. 



I might add, in this connection, that I do not accept Mr. Dod's 

 reference of T. saleppa to T. presses, but must reserve my comments on 

 that point for another occasion. 



HOSTS OF STREPSIPTERA. 



BY CHARLES ROBERTSON, CARLINVILLE, ILL. 



Mr. W. Dwight Pierce has recently published a monographic revision 

 of the Strepsiptera, as Bulletin 66 of the U. S. National Museum. This 

 paper brings up a number of interesting points regarding some of the hosts 

 of these parasites. For some time I have had occasion to identify many 

 insect visitors of flowers, and, while no insects were collected and none 

 were carefully examined for that purpose, I have marked the specimens 

 on which the parasites were noticed, so that they could be taken out when 

 wanted. The result is that, while I have only recorded three cases, and 

 have made no effort to anticipate any one, I am able, with the records here 

 given, to be the first to record 30 per cent, of the known North American 

 Hymenopterous hosts, and my collection contains 36 per cent, of them. 

 That one man could do this in one locality, with a few observations in 



October. 1910 



