THE CANADIAN ENTOMOLOGiST. 139 



9 — Body unusually stout in form, piceo-rufous, the large pale scales dense 

 almost throughout on the prothorax, large and somewhat elongate, 

 isolated and rather close but subuniform in distribution on the elytra, 

 not aggregated into a large central spot on the latter, though 

 smaller and dense along the suture ; erect setae rather long but only 

 moderately numerous ; prothorax two-thirds as wide as the elytra, 

 the humeri moderately exposed at base ; antennal club dusky, rather 

 larger than usual, as long as the preceding four joints combined, 

 gradually and very acutely pointed. Length, 1.4 mm.; width, 0.65 

 mm. Arizona fatmis n. sp. 



Body less stout, convex, similar in colour but with the vestiture wholly 

 cinereous, the pronotum densely clothed with large scales, the shorter 

 and more slender ones not only cinereous, and not as usual dark, but 

 broader than usual ; large oval scales of the elytra isolated, denser 

 near the humeri, also closely imbricated and smaller in a single line 

 at each side of the suture, the small slender scales cinereous, broader 

 than usual, the erect sette not so long or so numerous as in the two 

 preceding; prothorax nearly as long as wide, parallel, with rounded 

 sides, constricted at apex, three-fifths as wide as the elytra ; antennal 

 club smaller than in fatuus, more slender, pale in colour. Length, 

 1.35 mm.; width, 0.5S mm. Arizona (Tucson). . . .fraterculus n. sp. 



10 — Form stout, convex, deep black in colour throughout, the beak 

 distally and legs slightly rufescent ; vestiture cinereous throughout, 

 consisting of short and narrow, uniformly distributed and not very 

 close-set scales, which are generally not very closely decumbent, and, 

 along the middle of each strial interval, becoming nearly erect, 

 especially, behind, though notably short ; beak moderate in length, 

 much more and evenly arcuate, the eyes lenticular but larger than 

 usual, elevated above the general surface at their hind margin and 

 with the facets gradually coarser posteriorly ; antennal club moderate ; 

 prothorax large, shorter than wide, gradually narrowing anteriorly 

 from about the middle, deeply, closely, punctate ; elytra about a 

 fourth longer than wide, rounding behind and obtuse from near the 

 middle, the humeri rounding and moderately exposed ; striae fine and 

 shallow ; under surface densely clothed with large whitish scales. 

 Length, 1.45 mm.; width, 0.6 mm. Mexico (Rio Balsas, Guerrero), 

 Wickham g^ypus n. sp. 



II — Species of the sidcattihis type, the dorsal surface with large rounded 

 pale to brownish scales, intermingled with the slender hair-like scales. 



