NORTH AMKiaCAX COLIXH'TKKA. 207 



In this species there are oblique lines on the elytra devoid of pu- 

 bescence and smoother than the rest of the surface. The clypeus is 

 far less eniarginate tiian in the four preceding species in which it is 

 a triangular notch, here a slight eniargination. 



C». iiiarca!i»»iitii!« Crotch, Proc. Acad. 1873, p. 35: Lee. loc. cit. 

 G. simplex Lee, loc. cit. 



G. iiebulosus Lee, Col. Kaiis. p. 23; loc. cit. supra, p. 27: smai-dgdnln Lee. 

 Col. Kans, p. 24. 



In this species, as in cartipeMtm, there are oblique smooth spaces on 

 the elytra devoid of pubescence giving a nebulous appearance. 



TYI»01»H0RUS Eiichs. 



T\\h generic name was formerly applied to those species now placed 

 in Tymnes. The character given by Lefevre and Chapuis to sepa- 

 rate the Edusites (which includes Tymnes) and the Typopho rites is, 

 that the sides of the elytra are transversely wrinkled in the former 

 group. This character is certainly of no avail in our fauna. As 

 far as the Typophorites are represented in our fauna they all have 

 the eyes surrounded by a rather deep groove as in Graphops and 

 Metachrovia, while in Tymnes no such structure exists. 



According to the authors above cited two genera exist in our 

 fauna, Typophoms and Paria, which Chapuis separates as follows : 



Thighs unarmed PARIA. 



Posterior thighs toothed TYPOPHORUS. 



An examination of the specimens before me shows that all our 

 Paria have a tooth on the posterior femur, small though it is, yet 

 relatively as large as in viridicyanea, which is well recognized as a 

 Typophorus. Moreover, one of our varieties of Paria has been re- 

 described by Lefevre as Typophorus histrio. I must, therefore, con- 

 clude that these two genera should not have a separate existence, 

 and propose to unite all our species under the older name. 



Our species are as follows : 



Bright blue; large species .22 — .28 inch Tiridieyaiieiis. 



Rufo-toslaceous, maculate or hlack ; small species, .16 iuch. at most..c*aiiellii!«. 



T. vii'idicyaiiens Crotch, Proc. Acad. 1873. p. 40.— Form robust, bright 

 cobalt-blue, varying to green, shining. Head very sparsely finely punctate, a 

 distinctly impressed frontal line. Thorax very sparsely and irregularly punc- 

 tate. Elytra regularly striate-punctate, the punctures not large, rather distant, 

 and becoming finer to apex, at sides a suboostiform plica extends from the um- 

 bone obliquely backward toward the side margin. Body beneath and legs less 

 brightly colored, abdomen sparsely punctate. Antennse rufo-testaceous at base, 

 outer five joints piceous. Length .22 — .30 inch. ; 5.5 — 7.5 mm. 



TR.\NS. AM. ENT. SOC. XIX. JULY, 1892. 



