134 GEO. II. IIOIIN, M. D. 



Occurs in the Middle and Southern Atlantic States. 



I. faiiiOiaf UN 01. Ent. IT., 12, ji. 7 ,- pi. 2. fig. 1.'', ; Say., loc. cit., p. 169 ; qiiadri- 

 slgnatus, Say., loc. cit., p. 169; bipustulatus, Mels. Proc. Acnd. II., p. lOS; sex- 

 2>ustulatus, Reittcr, Vcrhiind. Naturf. vereinca in Briinn XII., p. 161. 



These are all varieties of one species, the characteristic names given 

 the varieties will enable them to be determined readily. Reitter says 

 (loc. cit. note) that scxpustuhi/us and qnadrlatgnatus have four quad- 

 rangularly placed impressions on the front while /'(.S(7'«^».s has but two. 

 In the majority of all the forms before me there arc no impressions 

 whatever. Length .10 — .28 inch; 4 — 7 mm. 



Occurs over the entire region east of the Rocky Mountains and also 

 in A'ancouver. 



I. sansuinoIeulii*« 01. Ent. II., 12, p. 8; pi. 2, jRg. 14; Say., loc. cit.; 

 rubromaculaius, Reitter, loc. cit., p. 161. 



The elytra are red broadly tipped with black, humeri and a median 

 round spot black. This is the normal coloration. In the form de- 

 scribed by Reitter, the median black spot is extended so that the red 

 is reduced to a short basal fascia with another post-median narrow 

 fascia interrupted at middle. We have in our cabinets enough of the 

 intermediate forms to show the identity of the two. Length .18 — .24 

 inch ; 4.5 — (i mm. 



Occurs from Canada to Florida and Texas. 



I. coiifliicntus Say., Journ. Acad. III., p; 195. 



The elytra are more coarsely punctured than in any other of our 

 sppcies. The coloration has been already noticed. Length .18 — .20 

 inch ; 4.5 — 5 mm. 



Occurs from Canada to Georgia. 



I. TJttatns Say., Bost. Journ., I., p. 170; dejeani, Kby., Fauna Bor. Amer. 

 IV., p. 107 ; pi. 2, fig. 4; sepulchralis, Rand., Bost. Journ., II., p. 19. 



The sides of the elytra are nearly exactly parallel. The elytra 

 are more coarsely punctured than any species except the preceding. 

 Length .IG — 20 inch; 4 — 5 mm. 



Occurs in Canada, Utah and Oregon. 



I. cylindrical Lee. New Species, 1863, p. 04. 



Form more elongate than vittatus and more convex. The thorax is 

 slightly broader than long, the sides absolutely straight and gradually 

 converging to the basal angles which are sharply rectangular. The 

 coloration has already been uoled. Ijcngth .20 — .30 inch; 6.5 — 

 7.5 mm. 



Occurs in California, Oregon and Nevada. 



I might here notice a curious paragraph in lleitter's paper (p. 166). 



