17C) THE CANADIAN ENTOMOLOGIST. 



OBSERVATIONS ON SOME NORTHERN DERBID^. 



BY E. P. VAN DUZEE, BUFFALO, N. Y. 

 ( Continued from page i^g. ) 



Otiocerus Wolfii, Kirby. A pale specimen of this frail little form was 

 beaten by me from a beech tree September 3, 1888, at Lancaster, N. Y., 

 and Mr. Uhler has kindly sent me a fully colored individual, presumably 

 from Md., taken on the 6th of August. The antennae in this species are 

 very short, with a single appendage. 



Otiocerus Signoreti, Fitch. I am indebted to Mr. ^V. J. Palmer, jr., 

 for an example of this species, captured at Lancaster, September i^, 1888. 

 It a^^rees with Wolfii in having but one appendage to the rather small 

 antennae. The white wings are faintly tinted with red and beautifully 

 veined with the same color. 



Avialopota, new genus.* 



Form very slight. Head rather short, horizontal above, almost verti- 

 cal before, with superior and frontal keels about as in Anotia ; apex 

 obtuse. Eyes of medium size, emarginate below. Ocelli two, distinct, 

 placed below and very near the inferior angles of the eyes. Antennae 

 about as long as the head, situated at the base of the clypeus in a socket 

 formed by a sharp, slightly elevated ring ; basal joint very short and 

 annular; second joint diverse in the two sexes; in the male, much flat- 

 tened, with the sides almost parallel ; in the female, shorter and slightly 

 flattened ; in both sexes papillated, with a subterminal emargination, from 

 which springs a bristle. Clypeus triangularly ovate, convex. Rostrum 

 long, reaching to about the middle of the venter ; terminal joint very 

 short. Prothorax linear above, produced in an acute angle between the 

 eyes ; on the sides, suddenly expanded to a broad, thin scale. Humeral 

 scales large and prominent. Legs slender, unarmed, of medium length ; 

 the posterior femoras somewhat thickened ; posterior tarsi three jointed ; 

 basal joint longer than the second and third united. Elytra long and 

 narrow, widest at the inner apical angle ; apex broadly rounded, a little 

 retreating posteriorly ; the costal area expanded near the base into a 

 broadly rounded, slightly recurved lobe ; a slight constriction of the costa 

 just before the apex, with a thickening of the veins there, produces the 

 appearance of an imperfect stigma. Venation simple,t almost as in 



* From: — a-t^<thos feeble, and itott) flight. 



t For convenience of comparison I have used Mr. West wood's nomenclature of the 

 venation. 



