232 THE CANADIAN ENTOMOLOGIST, 



ihe 1st tarsal have apical white spots, and in the fore leg they are very 

 indistinct; remaining joints brownj ungues simple and equal. 



Wings covered with brown typical Taeniorhynchus scales; ist sub- 

 marginal cell nearly a half longer and a little narrower than the 2nd pos- 

 terior, the stems nearly the same length; supernumerary cross-vein slightly 

 shorter and slightly interior of the mid cross-vein, the posterior about the 

 same length as mid and a little more than its own length distant; halteres 

 light. Length, 6 mm. 



Male is very like the female; palpi nearly as long as the proboscis, the 

 ultimate joint small and basally white banded, the penultimate also basally 

 white, otherwise the organ is brown, and is not plumose. Length, 4 mm. 

 Habitat. — Sierra Nevada Mts., California. 



Described from several specimens sent from Three Rivers (?), Cal., by 

 Dr. E. J. Bingham, ist Lt., Asst. Surg., U.S.A. The thoracic scaling 

 at first suggests Culex triseriatus. Say, but the abdominal marking and 

 the banded legs carry it away from that, and besides that the wing scales 

 are distinctively Taeniorhynchus scales. 



CRIOCEPHALUS OBSOLETUS, Rand., AND ASEMUM 



MCESTUM, Hald. 



Abbe Provancher in his work on the Coleoptera of Canada, page 

 585, gives a brief description of an insect he calls Criocephalus obsoletns, 

 Rand., and adds that it is very common. 



After a careful reading of his description, I have come to the con- 

 clusion that it can not apply to Criocephalus obsoletns, but to Asemnm 

 moestum, a common longhorn throughout eastern Canada. C. obsoletus is 

 a much rarer insect in Canada, and, in fact, I have no record of its having 

 been captured in the Province of Quebec ; it is not even mentioned by 

 Mr. Harrington in his list of Ottawa Cerambycidte. 



The two genera are decidedly very different, and cannot be mistaken 

 one for the other. The eyes are finely granulated and hairy in Asemum^ 

 while the contrary is the case in Criocephalus. The antennae are also 

 lunger in the latter genus and the body more elongate. 



I found Asemnm mcestum in great numbers at St. Hilaire, Que., on 

 34th May. 1903, under the bark of pine stumps. The only specimen of 

 C. obsoletus I have comes from New Mexico — a very southern locality for 

 this insect. G. Chaonon, Montreal. 



Mailed June i, 1905. 



