10 THE CANADIAN ENTOMOLOGIST. 



their apices produced, compressed, slightly divergent ; disc, convex, 

 inflated, a few appressed hairs along the margin ; plates equalling the 

 pygofers, nearly five times the length of the valve. 



Described from a pair taken at Rifle, Colo., by Mr. E. P. Van Duzee, 

 and two females taken at Grand Junction the next day by the author. 

 This large species is strikingly distinct in form, colour and genitalia, and 

 it gives me great pleasure to name it after the man who has in the past 

 so carefully worked out this genus for us, and whose energy and (i Kansas 

 umbrella " taken together did so much to make this mountain trip both 

 pleasurable and profitable to the author. 



Phlepsius extremus, n. sp. 



Very small, oval, depressed, with a flat, thick margined vertex ; 

 resembling decorus and areolatus in general appearance, but much smaller. 

 Smaller than ovatus, head as wide as the pronotum. Length, 9 4.5 mm., 

 o* 4 mm.; width, 1.5 mm. 



Vertex flat, over three-fourths the length of the pronotum, over half 

 longer on middle than at eye, not quite twice wider than long, the 

 anterior margin thick, angle with front acute ; front broad, nearly flat, 

 longer than wide. Elytra short, oval, claval veins distinct. 



Colour : milky white, heavily irrorate with dark fuscous so that the 

 general colour is dark without the reddish or brownish tinge so common 

 in this genus ; vertex very heavily irrorate, omitting a narrow margin and 

 median line. Pronotum with large olive brown spots along the anterior 

 margin as in decorus and areolatus. Elytra with numerous supernumerary 

 veins and reticulations, irrorations almost obsolete except in a few dark 

 spots around the apex and along the costa, one or two near the apex of 

 clavus and two very distinct ones between the sectors of the corium. 

 Front very heavily irrorate with brownish fuscous, rest of face and legs 

 lighter. 



Genitalia : ultimate ventral segment of the female twice the length of 

 the penultimate, the lateral angles broadly, roundingly produced, between 

 these the margin is roundingly emarginate with minute angular teeth at 

 the bottom. In the natural position of the segment it appears to be 

 angularly emarginate almost from the lateral margins ; male valve very 

 small, broad and short, about one-fourth the length of the ultimate 

 segment ; plates triangular, their apices hardly acute, a little longer than 

 the ultimate segment. 



Described from two males and two females, three from Rifle and one 



