THE CANADIAN ENTOMOLOGIST. 



Colour : almost uniform dull yellow, the anterior margin of vertex 

 pale, faintly margined with brown. Elytra with oval light spots, which 

 are milky on clavus and subhyaline white on corium ; the three pairs 

 along the sutural margin are very regular. Below pale yellow. 



Genitalia : ultimate ventral segment of female twice wider than 

 long, posterior margin rounding, variably trisinuate either side of a 

 narrow median incision ; the inner pair of lobes usually largest, lateral 

 angles rounding, disc with a dark spot, pygofers short, strongly inflated 

 in the middle. Male valve small, bluntly triangular ; plates rather 

 broad, the basal half rounding, apical half triangularly narrowing to the 

 blunt tips, two and one-half times longer than valve, the flat lateral 

 margins separated from the convex disc by a dark line. 



Described from numerous specimens from Rifle, Ridgway, Dolores 

 and Durango, Colo. The quadrangular cells along the costa will readily 

 separate this from any described form. 



SCAPHOIDEUS FUMIDUS, n. sp. 



Resembling bla?idus in form and size. Colour rich testaceous 

 brown, the margins of vertex and pronotum and apex of elytra white. 

 Length, 5 mm.; width, 1.5 mm. 



Vertex right-angled, slightly shorter than its basal width, lateral 

 margins slightly rounding, disc flat or slightly transversely depressed on 

 the middle ; outline of face as seen from the side straight, front rapidly 

 widening above antennal pits, regularly narrowing below ; clypeus short, 

 constricted in the middle, genae broadly margining the lora? below. 

 Pronotum slightly longer than vertex. Elytra rather long and narrow 

 behind ; outer claval vein nearly straight, venation obscured by the deep 

 colour, except in the apical cells, nodal vein arising from beyond the 

 middle of the outer anteapical cell. 



Colour : rich testaceous brown, vertex lighter, the lateral margins 

 of vertex and pronotum and the costal margin of elytra at base creamy 

 white, the apex of corium from just beyond the clavus and including all 

 the apical cells and the apices of the two outer anteapical cells, subhya- 

 line white. Sometimes a few oval white spots in the testaceous portion 

 of elytra. Face and below pale creamy yellow. 



Genitalia : ultimate ventral segment of female with a broad, 

 triangular, median notch, either side of which there is a broad rounding 

 lobe which slopes away to a small triangular lobe next the lateral angle ; 



