C'oleopterological Notices, VI. 691 



Pubescence longer and distinct; anterior parts less densely pnnctater 

 and shining. 

 Eyes mod erately large, about as long as as the tempora, convex and 



prominent; pubescence only moderately long 5r2. lutulentu»$ 



Ej'es smaller, very much shorter than the tempora 25 



25 — Prothorax larger, subequal in width to the head ; body black through- 

 out, the pubescence long, coarse, cinereous and conspicuous... 53. agilis 

 Prothorax small, distinctly narrower than the head. 



Eyes moderately small and prominent, not less than three-fourths as long 

 as the tempora. 

 Pubescence long, coarse, cinereous and M'ry conspicuous; punctures of 



the head strong and dense 54. lierifilga. 



Pubescence shorter, liner and less conspicuous, especially on the head; 

 punctures of the latter moi-e minute and much less dense; elytral base 



and apex pale 55. iiiiindilS 



Eyes very small, convex and prominent, aboiit one-half as long as the tem- 

 pora; body mucfi smaller and more convex 56. nielaiicliolicilS 



26 — Eyes very small and prominent, mmsh shorter than the tempora; body 



narrow and minute 57. ictericilS 



Eyes larger and less convex, sube(j^ual to the tempora; body larger and much 



stouter 58. conTex:ulii!$ 



fn — Head subquadrate, parallel at the sides; prothorax somewhat longer 

 than wide, broadly rounded at the sides anteriorly, the disk not modihed 

 at apex 59. niaritiiuu^ 



In this genus, as in all other large genera containing numerous 

 species'which are abundant as a rule in individuals and widely 

 diflused, there are certain pronouncedly distinct typical forms 

 surrounded b^^ others, evidently closel3^ related, and derived from 

 a common progenitor in comparatively recent times. It is not, 

 however, for the systematist at the present time to pronounce 

 any definite opinion concerning the status of these more closely 

 allied species; he can only record them in order that they may be 

 referred to by future investigators, provided with more ample 

 data. Only those forms are here described under separate names 

 which differ structural!}^ to a definite and obvious degree, and 

 their true relationships will be a problem to be solved mainly by a 

 study of life habits and interbreeding, if such subtle matters can 

 ever be looked into. 



[1. A. liorridlis Lee. — Ann. Lye. Nat. Hist., N. Y., V, p. 154; Proc, 

 Ac. Nat. Kci., I'hila., 1852, p. 98. 



One of the most remarkable species of the genus, rather stout, 

 flavate, with extremely coarse and sparse elytral punctures, the 



Annals N. Y. Acad. Sci., VIII, Oct., 1895.— 47 



