Feb., 1847.] 175 



and postpectus, black, the latter tinted with reddish ; antepectus color of 

 the feet. 

 Var. a. Head and thorax dull rufous. 



Gastrophysa, Chevr. 



1. G. cenea. Blue, slightly brassy ; antennae black, with five basal joints 

 testaceous. 2 1. long. Pennsylvania. 



Eumolpus cenms, Melsh. Catal. 



Blue, tinged with greenish, slightly brassy ; head deeply and distantly 

 punctulate, sometimes with an obsolete longitudinal frontal impression ; an- 

 tennae black, with five or six basal joints dull testaceous ; palpi pieeous ; tho- 

 rax deeply and densely punctulate : scutellum impunctured : elytra much 

 punctulate, with the punctures longer than wide, and ranged in irregalar and 

 approximate series ; beneath and femora, greenish black, slightly brassy ; ti- 

 biae and tarsi, blackish, or dark reddish-brown; abdomen sparsely punctulate. 



Var. a. Elytra cupreous. 



2. G. cyanea. Blue ; beneath and feet black. 2 1. long. Pennsylvania. 

 Chrysomela Raphani, Melsh. Catal. 



Cyaneous, shining: head punctured; an obsolete longitudinal impressed 

 frontal line ; labrum and palpi piceous : antennae black, or dark brown, 

 with four basal joints glabrous, shining ; thorax strongly tinged with green J 

 profoundly and densely punctulate : scutellum green : elytra punctured like 

 the thorax, with a green reflection : beneath blackish ; feet similarly col- 

 ored, with a bluish or greenish reflection. 



PHiEDON, Meg. 



P. wide. Greenish, or dark fuscous brassy ; feet piceous. \\ 1. long. 

 Pennsylvania. 



Eumolpus viridis, Melsh. Catal. 



Ovate, greenish, or dark fuscous brassy, rarely cupreous ; shining ; head 

 deeply punctulate, with a transverse, arcuated impressed frontal line : an- 

 tennae blackish or dark brown ; thorax very minutely and obsoletely punc- 

 tured ; scutellum blackish, impunctured : elytra striate-punctate, punctures 

 small, and the series remote : beneath blackish, with the abdomen densely 

 punctured ; feet blackish-piceous, often brassy. 



Erotylida. 

 Tritoma, Fabr. 



T. basale. Black ; basal half of the elytra rufous. If 1. long. Penn- 

 sylvania. 



Black, shining; head obscurely punctulate ; antennas black ; thorax much 

 and rather distinctly punctulate : scutellum piceous : elytra with the basal 

 half rufous : finely punctate striate ; beneath black, distantly and distinctly 

 punctulate : feet black. Differs from pulchrum, Say, which it much resem- 

 bles, in being more numerously and distinctly punctulate, and in having the 

 basal half of the elytra transversely rufous, the rufous color extending as 

 far down on the lateral margins as it does on the suture, whilst in pulchrum 

 the rufous color occupies only a short space behind the humeri, and extends 

 down the suture, sometimes to the apex. 



