THE CANADIAN ENTOMOLOGIST. 11 



from Durango, Colo. One Rifle specimen from Mr. Van Duzee. This 

 is as short as albidus, but much broader, and is quite distinct structurally 

 from any other species with a flat vertex and a broad head. 



Phlepsius denudatus, n. sp. 



Resembling ovatus, but broader and shorter. Even lighter coloured 

 than albidus. Head broader than thorax. Form stout. Length, 4 mm.; 

 width, 2 mm. 



Vertex blunt, rounding, twice wider than long ; front broad, about 

 one-fifth longer than wide, clypeus enlarged at apex. Pronotum very 

 short, but one-third longer than vertex, lateral margin scarcely apparent. 

 Elytra short, broad, flaring behind, giving the insect a square-set appear- 

 ance. Venation very indistinct, somewhat variable. 



Colour : milky white, very sparsely spotted and irrorate with 

 fuscous. Vertex with a pair of round spots just inside the eyes; within 

 and back of these a pair of oblique dashes, fuscous. Pronotum with a 

 pair of fuscous spots in a line with the inner margin of the eye on either 

 side, sometimes a row of fuscous markings inside of these. Scutellum 

 with a pair of triangular spots within the basal angles and a smaller pair 

 of round ones on the disc. Elytra with three pairs of equidistant 

 approximate spots along the suture, the middle pair the largest, and a 

 number of spots along the costa, black. Sometimes these are absent 

 except the large pair on the suture, and a spot opposite the anteapical 

 cells on either costa. Veins pale yellow, indistinct. Face and all below 

 dirty white. 



Genitalia : ultimate ventral segment of the female about twice as 

 long as the penultimate, the lateral angles feebly, angularly produced, the 

 margin between them very slightly rounding, with a small semicircular 

 median emargination ; male valve small, triangular; plates broad, 

 triangular, as long as the ultimate segment. 



Described from numerous specimens from Grand Junction, Colo. 

 (V. D. and the author.). This is another of the "white" Phlepsids, 

 which seems to be strictly south-western in distribution. In structure it 

 resembles Vanduzei, but in size and colour it is very different. 



(To be continued.) 



I desire to acknowledge the Society's indebtedness for a perfect pair 

 of Plusia aeroides, from Mr. C. H. Young, Hurdman's Bridge, through 

 Dr. Fletcher. A very rare species in this district. 



J. Alston Moffat, Curator. 



