AMERICAN COLEOPTERA. 389 



H. impressopunctatns, Sehall. Act, Hal. :., p. 312; similis, Kirbv, 1. 

 c. p. 68.— Very similar to the above, but elytra with a sutural and two dorsal 

 impressed lines; the elytra also are yellowish, each with four linear black 

 vitta. 9 opaque, closely not coarsely punctate throughout. L. -20 — -22 inch. 



Lake Superior, Boston, Illinois. 



II. 10-lineatus, Mannh., and E. 4-lineatus, Mannh., of which typi- 

 cal specimens are before me, appear to me varieties of the above. 



H. diSSimilis, Har. Cat., p. 472; dispar || Lee. Lake Sup., p. 216.— Very 

 similar to H. impressopunctatns, but smaller, head and thorax rufous, not infus- 

 cate; elytra sparsely punctate, interstices punctulate, the dorsal lines very 

 rarely evident, no distinct pattern. L. -15 inch. 



Illinois, Lake Superior. 



H. turbidus, Lee. Pr. Acad., 1855, p. 294, 62.— Shorter and broader than 

 H. dispar, and about half the size; elytra coarsely and unequally punctate, 

 without distinct coloration. L. '11 inch. 



Boston. 



H. medialis, Lee. Ann. Lye. v., p. 209.— L. -15 inch. 

 San Diego. 



H. lutescens, Lee. Ann. Lye. v., p. 208.— L. -15 inch. 

 San Francisco. (Leconte.) 



These two species agree in coloration and in having a sutural and 

 dorsal line of large punctures. 



H. sellatus, Lee. — Closely allied to the preceding in sculpture, but anten- 

 nae and tarsi infuscate; elytra whitish-ochreous with a large common brown 

 patch behind the middle. L. 'lo inch. 

 Dakotah. 



H. suturalis, Lee. Lake Sup., p. 216. 



The coloration is that of H. medialis, but the punctuation of the 

 elytra is unequil towards the base. 



H. o* oidcus, Lee. Lake Sup. p. 216. 



This species appears to me to be immature and may possibly be II. 

 suturalis. 



H. patruelis, Lee. Pr. Acad., 1S55, p, 298; % discoideus, Lee. 1. c. 

 1 should have been unwilling to separate this from //. suturalis; it 

 is, however, larger and of a different appearance. 



H. fraternus, Lee. Ann. Lye. v., p. 209. — Distinct by the finely punctate 

 elytra without deeper punctures. % distinctly punctate. $> sub-opaque, 

 punctulate. L. *15 inch. 



The head and thorax are quite pale in this species, the elytra only 

 having some darker dorsal marks. 



TRANS. AMER. ENT. SOC. (,50) MAY, 1873. 



