AMERICAN COLEOPTKRA. 27 



Very similiii- fu canaliculatus but narrower, prothorax fulvou.-^ with a large 

 ))lac'k spot, sides more strongly reflexed, apex not eariiiate, base emarginate 

 at tlie middle, dorsal canal extending from base to the middle; elytra with 

 Avell marked equal lines and strough' cancellate interspaces ; antennae of % 

 Ifing, joints as in canaliculatus, fourth fully twice as long as third; fifth 

 twice as long as wide, outer ones narrower, with angle acute and distal side 

 oblique; front twice as wide as the diameter of the eyes; seventh ventral 

 deeply emarginate, eighth elongated; antenna; of 9 shorter, less serrate; 

 seventh joint twice as long as wide, dorsal clianuel of prothorax deejDer. 

 Length 5 — 8 mm. Pa.; Ga.; Fla SOllicitns Lee. 



Also iiarrDwer tlian canaliculatus, protliorax ])hK-k, sides fulvous, apex not 

 carinate, base straight, cellule elongate, forming a dorsal channel extending 

 to the middle in %, broader and shorter in 9> elytra with well marked 

 equal lines and more finely cancellate interspaces: antenn?e of % hing, 

 distinctly serrate, third joint triangular, as wide as long, fourth longer, not 

 wider, fifth twice as long as wide, outer ones narrower, distal side oblique 

 and angle acute, eyes large; antennse of 9 broader, less serrafe, eighth 

 joint twice as long as wide: eyes smaller; seventh ventral of '^ emar- 

 ginate, eightli elongate, narrowed and subacute at i\\\. Length 5 — 7 nun. 

 X. J.: Ga.; Fla lictor Xewm. 



Very similar to tlie preceding, but differs by the antenna' in both sexes shorter 

 and less strongly serrate. LengtJi 4— .5..") mm. X. Y. ; Pa.; 'ni. 



floralis Mels. 



Gi'DU]) 3. — Li/(jistopteri. 

 The insi'c-ts of this <:ruup, of which two <>eueia an' represented iu our 

 fauna are e:i.sily distinguished by the pubescent velvety surface, and the 

 feebly striate, not reticulated elytra. The head is prolonged into a long 

 or short broad beak, which latter form is rather a muzzle, like that of 

 many Podnhri ; the eyes are moderate and the front broad; the antennae 

 are rather widely separated, subserrate. with the joints thicker and less 

 compressed than in the other two groups ; the second joint is one-half as 

 long a,s third, which is shorter than fourth. Maxillary palpi with last 

 joint subtriangular. apical side oblique. Prothorax channeled, margins 

 usually thickened, reflexed, with an oblique ridge running forwards to- 

 wards the median groove; the thickened side of the prothora.v is usually 

 foveate at the middle of its length, thus recalling Polemius of the 

 Telephorida\ as the form of the muzzle does Podahrus. 

 Beak long, narrowed at ti]i. Prdtlioracie channel forming a rhombic cell, the sides 

 of which connect with the oblique ridge, sides not thickened. Maxillary 



jaalpi with distal side of last joint curved LYGISTOPTERUS. 



Beak short, broad. Prothorax with thickened sides, oblique ridges short. :\Iaxillary 

 palpi with distal side of last joint oblique CALOCHROMUS. 



1,YGIST©PTERIJS M'nls. 



But one species is known to me in our fauna. 



Black, velvety 2nt))esceut, with the elytra scarlet. Length 11—1 -'..J iiim. t'olorado. 



riibripennis Lee. 



