698 Goleopterological Notices, VI. 



various localities by Mr. Wickham. It varies considerably in 

 color and size, some specimens having entirely flavate elytra; the 

 head and prothorax are always a little darker, however. 



10. A. scabriceps Lee— Agassiz " Lake Superior," p. 230 ; Proc. Acad. 



Nat. Sci., PhiLa., 1852, p. 99. 



Rather narrow, convex, variable in color; surface shining; pm- 

 l)escence coarse and sparse, cinereous and distinct. Head sub- 

 quadrate, wider than long, feebly convex, truncate and broadly, 

 feebly impressed at base ; basal angles distinct ; e3^es moderate, 

 about as long as the tempora, the latter parallel ; surface some- 

 what closel}' covered with small, strongly elevated tubercles, the 

 integument polished ; median smooth line partially obliterated ; 

 antennjc moderately stout and incrassate. Prothorax somewhat 

 narrower than the head and fully as wide as long, convex, the 

 sides broadl}^ rounded, convergent behind the middle to near the 

 base; surface with confused tuberculate sculpture, the punctures 

 bearing the hairs minute. Elytra four-fifths longer than wide, 

 twice as wide as the prothorax, the sides parallel and feebly arcu- 

 ate ; surface coarsel}^ and sparsely punctate, the omoplates obso- 

 lete. Abdomen polished, finely and remotely punctate. Legs 

 slender. Length 2.5 mm.; width 0.8 mm. 



Lake Superior, — Cab. LeConte. The general color is black 

 throughout, with the elytra a little paler at apex, but paler speci- 

 mens occur with the elytra testaceous throughout, or having a 

 median black fascia. 



11. A. coinpositllK n. sp. — A. ephippium Lee. nee Laf. : Proc. Acad. Nat. 

 JSci., Phila., 1852, p. 99. — Moderately stout, convex, polished, pale rufo- 

 testaceous, the under surface of the body and a median elytral fascia black, 

 the latter generally feeble and frequently obsolete; pubescence cinereous, 

 coarse, rather short and subdecumbent anteriorly, very long erect and bristling 

 on the elytra, the hairs varying in length. Head subquadrate, as long as wide, 

 moderately convex, polished, truncate and feebly impressed at base, the angles 

 somewhat distinct; eyes large, longer than the tempora; surface sparsely 

 tuberculose and with intermingled sparse punctures, also with an entire median 

 smooth line; antennte slender, barely as, long as the head and prothorax, very 

 feebly incrassate. Prothorax distinctly narrower than the head, about as long 

 as wide, rounded at apiciil third, the sides thence oblique and arcuate to basal 

 fifth, thence slightlj' exjianded to the basal margin which is feebly defined; 

 collar large, very feebly constricted; surface convex, coarsel3' and confusedly 

 tuberculose and finely, sparsely punctulate. Khjtra three-fourths longer than 

 wide, ixxWy twice as wide as the prothorax, parallel and evenly arcuate at the 



