THE CANADIAN ENTOMOLOGIST. 



.t REVISION OF THE BOMBYLID GENUS EPACMUS 



(LEPTOCHILUS). 



BY D. W. COQUILLETT, LOS ANGELES, CAL. 



In the Canadian Entomologist for May, 1886, I gave descriptions 

 of the only two species of Leptochiliis at that time known to inhabit 

 North America. I am not aware that any additional species have been 

 d'estribed since the appearance of that paper. My collection contains! 

 representatives of three as yet undescribed species which will be found- 

 duly characterized below. 



Ih the Biologia Cetitrali Americana, Part Diptera, the Baron Osten 

 Sackeri calls attention to the fact that the name Leptochilus, first applied 

 to this genus by Dr. Loew, is preoccupied, and proposes the name 

 £pacmus ioht. used in its stead. It is to be regretted that the rules of 

 nomenclature will not permit us to attach Dr. Loew's name to this new 

 teVm ; the genus is rightfully his from the fact that he first characterized 

 it' after an extended Search among the writings of other authors, and it 

 seems hardly fair to deprive him of this honour simply because he inad- 

 vertently applied to it a name already in use. Perhaps we might com- 

 promise matters somewhat by writing the name of this genus : Epacmus 

 Osten Sacken-Loew, which would indicate a joint work of these two 

 authors. 



Following is a table of the species of Epacmus known to me to occur 

 iri 'North America : 

 '' I. Ground colour of the abdomen black . . . . 2 



-■ Ground colour of the abdomen yellow, its tomentum golden-yellow 

 5'- except a white crossband on the second segment . conci/inus, 



n. sp. 

 2. Wings (except sometimes the costal and subcostal cells) wholly 

 hyaline, front and face furnished with tomentum ... 3 

 f''! Wings smoky -brown at the base, front and face destitute of tomen- 

 tum ...... 4 



- 3. Scutellum shallowly concave behind, hind and middle femora and 



fic.:« ... front tibiae provided with bristles . . modestus, Lw. 



•I Scutellum convex behind, all femora and the front tibiae destitute of 



bristles .... pellticidtis, n. sp. 



■;i-: 44;. Hind femora and front tibiae provided with bristles, scutellum pol- 

 9dj L ished black .... transiius, Coq. 



!!>:.' Hrnd femora and front tibiae destitute of bristles, scutellum opaque 



Jumosus-, n. sp. 



