THE CANADIAN ENTOMOLOGIST. 281 



than usual, more than half as thick as the eleventh, finely punctato- 

 rugose, and with bristling pubescence ; prothorax with the usual 

 sulci and fove?e, moderately transverse, only slightly narrower than 

 the head, very sparsely granose at base; elytra but little shorter than 

 wide, fully as long as the head and prothorax and nearly one-half 

 wider, the humeri pronounced, the discal lines rather distinct, the 

 second extending to slightly before, the third to slightly behind, the 

 middle ; abdomen about as long and wide as the elytra, the basal 

 impression nearly half the total width, limited abruptly by oblique 

 lines at the sides. Length, 1.5 mm.; width, 0.54 mm. Virginia 



(Norfolk) virginictis, n, sp. 



Form, colour and general characters nearly as in the preceding, but 

 with the basal joint of the antennse sensibly more slender in the male, 

 as compared with the male of virgiiiiciis; general form a little stouter 

 throughout, the prothorax decidedly shorter and more transverse, 

 scarcely visibly narrower than the head ; elytra broader, much more 

 evidently shorter than wide, the second impression very short, basal, 

 the juxta-humeral impression large and deep, rapidly becoming very 

 faint and narrow, and barely traceable to the middle ; abdomen 

 nearly similar. Length, 1.5 mm.; width, 0.58 mm. Cab. Levette, 

 probably from Indiana ij'ansversus, n. sp. 



The last two species, and particularly virginicus, are probably more 

 especially allied to substriattis, Lee, founded upon a unique from Tampa, 

 Fla., which I have not seen; it is said to be larger, darker and less convex 

 than iiisculpius^ the eyes small, the elytra each with four faint striae, of 

 which the subhumeral is longer and more distinct, the others extending 

 only to about the middle ; the antennae have the ninth and tenth joints 

 less abruptly larger than in iiisculptus. The length is 1.5 mm. 



Mr. Keen has recently sent me a specimen of Megarafomis v entrails, 

 from Metlakatla, British Columbia, showing that its range is somewhat 

 extended. 



A NEW GENUS OF BYRRHID.E. 



BY THOS. L. CASEY, WASHINGTON, D. C. 



The following is one of the more interesting of the many recent 

 discoveries of Mr. J. H. Keen, and I have taken advantage of the present 

 opportunity to suggest for it a probable systematic position in the Byrrhid 

 series ; 



