PLATYXIX.^i 97 



wide; tarsi slender, the anterior (cf ) very feebly dilated. Length 

 (cT 9 ) 5.0-7.0 mm.; width 1.8-2.35 r"iTi- Rhode Island to Lake 

 Superior (Duluth) and southward to North Carolina (Southern 

 Pines). Very abundant. [Ag. luctuosum Dej.; placidum Lee. nee 

 Say; strigicolle Mann.(?)] obsoleta Say 



Form slightly narrower and more elongate, dark piceous, the head 

 black; under surface and legs piceo-rufous, highly polished; head 

 nearly similar, the eyes rather less prominent; antennae longer and 

 more slender, black, the first joint piceo-rufous, the third joint 

 subequal to the fourth, the fifth three times as long as wide; last 

 palpal joint barely longer than the third; prothorax nearly similar 

 but shorter, the sides and surface similar, except that the fine trans- 

 verse rugulae are more evident and the anterior impression distinct; 

 basal angles obtuse though well defined; elytra two-thirds longer 

 than wide, only three-fifths wider than the prothorax, similar in 

 general outline and striation; anterior male tarsi feebly dilated. 

 Length (cf) 5.75 mm.; width 2.2 mm. Vancouver Island (Vic- 

 toria), — Wickham insulina n. sp. 



9 — Body a little larger and stouter than in obsoleta, feebly convex, 

 shining, black, the under surface and legs piceous-black; head 

 evidently narrower than the prothorax, with rather prominent eyes 

 and small anterior impressions; palpi somewhat stouter, the last 

 joint longer than the third; antennae heavy, distinctly less than half 

 as long as the body, piceous-black, the basal joint scarcely paler, 

 the third much longer than the fourth; prothorax shorter, more 

 than one-half wider than long, widest slightly before the middle 

 but with the sides moderately and evenly rounded, feebly so and 

 only slightly sinuate behind, distinctly reflexed, rather broadly at 

 base, the angles extremely obtuse though evident; base broadly 

 obliquely rounded laterally, as wide as the apex, which is very 

 feebly sinuate, with rather broadly rounded angles; surface with 

 two large and deeply impressed discal foveee before the middle, 

 having also numerous distinct transverse rugulae; anterior trans- 

 verse impression distinct, the stria fine; foveae large, shallow, not 

 definitely limited and more ruguloso-opaculate; elytra one-half 

 (cf) to two-fifths (9) longer than wide, ev'idently less than twice 

 as wide as the prothorax, oblong, with nearly straight sides, rapidly 

 rounding at base; apex rapidly much more obtuse than in obsoleta, 

 the sinus longer and distinctly deeper, distinct; striae very fine, 

 impressed, smooth; intervals distinctly alternating in width, convex, 

 the narrower ones more strongly; anterior male tarsi narrowly 

 dilated. Length (cf 9) 6.4-7.0 mm.; width 2.45-2.75 mm. 

 Colorado. Two examples, from the Levette collection and without 

 further record of locality invidiosa n. sp. 



Body rather stout, piceous-black, highly polished and very moderately 

 convex; under surface rufo-piceous, the legs almost deep black; 

 head slightly elongate, nearly as in the preceding, except that the 

 eyes are more prominent and the neck more narrowly constricted, 

 being barely more than half as wide as the prothorax; antennae 

 T. L. Casey, Mem. Col. IX, Jan. 1920. 



