30(i 



THE CANADIAN ENTOMOLOGIST 



of conspicuous, tubular chilinous structures present in connection 

 with the preputial sack. 



Occurring, at least for the most part, upon Gruiformes. 



Type of the genus, Colpocepliahim trnncalum Piaget. 



Included Species. 

 From Gruidae. 



Colpocephalum abdonii- 

 nale Piaget. 



Col pace phaliini ass i mile 

 Piaget. 



Colpocephalum m i a n - 

 driuni Kellogg. 



Colpocephalum Innicalum 

 Piaget. 



Ileleonomus coufusus n. 

 sp. 



This little genus dilTerS Fig. l.S.— Genitalia, except basal plate of: K. Heleo- 

 . nomus miandrius {KeW.}; V. Actornithofhitus 



rather markedly in general umidus (Keii.). 



appearance from the pre- 

 ceding, but the tangible characters upon which the two may be 

 separated are few. The shape of the head and the character 

 of the patches of spines, with the character of the male genitalia, 

 are, however, sufiftcient to afford grounds for their separation. 

 The males of three of the species are before me, and the genitalia 

 of these three are all of the same peculiar type, so it ma\' he assumed 

 that the>' are the same throughout the genus. 



Superficially the genus very closely resembles another group 

 {Colpocephalum sens, str.), which occurs upon the same hosts, but 

 which is marked b>' the presence of comhs of spines upon the 

 posterior femora. For this rea.son it is unsafe to refer species to 

 the new genus without knowledge of this character, which has 

 been entirely overlooked in most descriptions. Only those species 

 of which there can be no doubt (four of them are l>efore me) have 

 been referred to the new genus. 



The figures are of //. miandrius (Kel.), an entir(.l\- txpiial 

 member of the group. 



