AMERICAN COLEOPTERA. 283 



Proc. Acad. 4S44, p. 40 % : rt'/icolHs, Zeig. loc. cit. p. 47. — Black, shinine:. Head 

 sparsely piinctulate, two basal joints of anteniuie and palpi pale rufous. Thora.K 

 rufous shining. Elytra shining, coarsely and rather deeply punctured. Body 

 beneath sparsely punctuhite. Legs pale yellowish. Length .28 — .32 inch; 7.8 

 mm. 



Male. — Antennae slender, apices of elytra with oval, smooth, yellow, convex 

 space, vaguely impressed, last two segments of abdomen pale yellow. 



Occurs in the Middle States, but is not abundant. 



The female has the tenuiual segment of the abdomen brownish. 

 The elytra in both sexes are frequently of a bluish tinge. 



C. canaliculata, Lcc. New Species, p. 143. — Piceous black, subopaque. Head 

 p]>arsely punctulate, two basal joints of antennse and palpi paler. Thorax pale 

 rufous sub-opaque, basal margin slightly darker, surface sparsely punctulate 

 and with a median line more deeply impressed at base, and with a small 

 obscure fovea on each side. Elytra moderately densely punctured but less 

 dense toward the apical margin which is paler in color gradually fading into 

 the darker color of the rest of the surface. Beneath black, sparsely punctulate. 

 Legs pale testaceous. Lengtii .20 inch; 5 mm. 



One female specimen alone is known to me. Collected by INIr. Fay, 

 in Ohio. The characters given above and those in the table, abun- 

 dantly distinguish it from all those which precede. 



The species of Corphyra very closely resemble each other in form, 

 for the reason no special mention has been made in the foregoing short 

 descriptions of the forms, or relative size of the various parts of the 

 body. The only observable variation being in the form of the thorax 

 which in the totally black species and in elc<janx is more transverse. 

 Those with totally red thorax, have rather more convexity while those 

 with the median thoracic stripe are intermediate in both characters as 

 is indicated by their position in the table. Corphyra as well as its 

 close ally Pedilus inhabit as far as known only the northern regions of 

 both the continents of Europe and America. The only apparent ex- 

 ception to the latter rule is the California species punctulata, which 

 has been found as far south as Tejon, but at an altitude of over 3000 

 feet. 



Two desiderata remain to be described, the female of C. vittata, and 

 the male of C. canaliculata. 



