Coleopterological Notices. 43 



Group 2. — armatus. 



The succession of species, of which a vei-y large proportion are 

 described below, may be stated as follows : — 



armatus Say. agonus n. sp. 



strenuus n. sp. ineptus n. sp. 



furtivus n. sp. politus Er. 



cribricollis Lee. flavipennis Lee. 



monstratus n. sp. lectus n. sp. 



eximius n. sp. tenuis n. sp. 

 cuspidatus Lee. 



B. armatus ^&y.— Oxyt. arm. Say, Journ. Ac. Pliila. Ill, p. 155. — Rather 

 robust and convex, black ; elytra dark rufo-piceous, blackish toward suture 

 and base ; abdomen slightly paler at the apex ; legs and antennae dark piceo- 

 rufous, the latter piceous toward apex ; head and prothorax moderately shin- 

 ing, rather coarsely and very strongly reticulato-granulose ; abdomen polished, 

 finely reticulate. Head distinctly narrower than the prothorax, very feebly 

 convex, with a few very small, feeble and indistinct punctures in the lateral 

 depressions, having, on a line through the middle of the eyes, two large, 

 approximate, distinct, but not very strongly elevated tubercles, the surface 

 behind them very feebly impressed; epistomal suture fine, impressed, very 

 distinct ; antennal prominences very large and strongly elevated ; each apical 

 angle of the epistoma with a strong erect process, the apex of which is reflexed; 

 antennae long and rather slender ; second and third joints equal in length, the 

 latter as long as the fifth and sixth together, outer joints graduallj- more robust, 

 the tenth scarcely perceptibly wider than long. Prothorax as wide as the base 

 of the elytra, scarcely more than one-sixth wider than long ; sides in apical 

 three-fifths parallel and nearly straight, then broadly rounded to and through 

 the base, the latter less strongly areuate, the basal and lateral angles entirely 

 obsolete ; apical right, rather narrowly but distinctly rounded ; apex nearly 

 transversely truncate ; disk sparsely and very unevenly punctate, the punc- 

 tures impressed, very distinct but not very coarse ; median groove deep, im- 

 pressed, conspicuous. Elytra quadrate, toward apex scarcely perceptibly wider 

 than the prothorax, about one-fourth longer than the latter, rather strongly 

 impressed near the suture toward base, not veiy densely or coarsely punctate, 

 the punctures deep and very distinct, separated by about twice their own 

 diameters ; pubescence rather sparse, moderate in length, coarse. Abdomen 

 slightly narrower than the elytra, rather sparsely, finely punctate, the im- 

 pressed areas impunctate ; under surface finely, more densely punctate, with 

 long coarse conspicuous pubescence. Length 5.5-6.0 mm. 



New Mexico (Albuquerque). Mr. H. F. Wickham. 



The above rather full diagnosis is given, as there has been more 

 or less indecision in the identification of this species. The descrip- 

 tion is taken from the male, the female differing very slightly, the 



