NORTH AMERICAN COLEOPTERA. 101 



is partly real and at times merely a deception, at all events the same has 

 been observed in the two preceding species, and is also mentioned as oc- 

 curring in the European species glaherrimum (Fauvel, Faune Gallo- 

 Rhenane iii, p. 3G5). Finally the punctuation of the head may be well 

 separated or may be coarser and closer. This character if borne out by 

 others might give the means of separating the species into at least two. 

 If, however, the specimens are assorted on this basis we will find all 

 forms of head and length of elytra equally confused. Moreover the 

 character seems gradually evanescent. 



In the large series before me I am entirely unable to separate pallipes 

 and latebricola, nor do I find any characters of moment given by Erich- 

 son. I also add as a synonym. Jlavicorne Lee. as it proves to be a slightly 

 immature specimen. 



Occurs from Canada to Florida and westward to Missouri. 



20. C proper II 111 n. sp. — Piceous, subopaque, head and thorax brown. 

 Antenneei rufo-testaceous, nearly as long as the head and thorax, third joint very 

 little longer than the second. Head oval, sides arcuately narrowing to base, sur- 

 face relatively coarsely but sparsely punctate. Thorax very little narrower than 

 the head and very little longer than wide, sides slightly arcuate, median smooth 

 space distinct, the punctures each side rather large, not deeply impressed and 

 sparsely placed. Elytra a little wider than the thorax and slightly longer, the 

 punctuation coarse and closely placed. Abdomen slightly iridescent, punctuation 

 fine and not closely placed. Legs rufo-testaceous. Length .28 inch; 7 mm. 



Male. — Third ventral segment with a tubercle at centre punctured at its sum- 

 mit; seventh ventral deeply emarginate, the emargination narrow and with 

 slightly divergent sides; sixth ventral with a slight notch at middle (PI. 2, fig. 16). 

 Female. — Ventral segments entire. 



At first sight resembles a very small pallipes., but is more slender. 

 The sexual characters of the male will distinguish it readily. It is pos- 

 sible that more specimens may show this species to belong with Series B. 

 Arizona, three specimens % % , 9 • 



21. C ptisilluni Lee. — Form slender, piceous brown, shining. Antennae 

 nearly as long as the head and thorax, rufo-testaceous, third joint scarcely longer 

 than the second. Head oval, slightly narrowing behind the eyes which are 

 slightly prominent, surface shining, unusually coarsely and deeply, rather closely 

 punctate. Thorax nearly as wide as the head, slightly narrower behind, one- 

 fourth longer than wide, median smooth space narrow, the punctuation very 

 coarse and deep, closely placed. Elytra very little wider than the thorax, and not 

 longer, the punctuation less coarse than on the thorax, deep and rather closely 

 placed. Abdomen coarsely, not closely punctate. Legs yellowish testaceous. 

 Length .20 inch ; 5 mm. 



Male. — Seventh ventral with a deep notch with parallel sides: sixth ventral 

 slightly impressed at the middle of the hind margin. 

 Female. — Unknown. 



