AMERICAN ENTOMOLOGY. 45 



it from Mr. Holmes of Maine, and have myself found specimens 

 in Missouri, North-West Territory, and East Florida. In Penn- 

 sylvania it is very common. 



The elytra of the male, are more dilated behind than those of 

 the female. 



The upper left figure of the plate. 



[Belongs to Calopteron Gruer., (JDigrapha Newman, Charac- 

 tus[ Dej.) — Leg.] 



Lycus terminalis. — Specific character. Black; thorax with 

 fulvous lateral margins ; elytra fulvous, with a black tip. 



Lycus terminalis nobis, Jour. Acad. Nat. Sci., vol. iii. p. 178. 



Desc. Body deep black, polished ; antennae reaching the middle 

 of the elytra, opake : rostrum short : thorax black, the dilated 

 lateral margins a little recurved, fulvous : an acute carina in the 

 middle ; posterior angles attenuated, prominent, acute ; scutcl black; 

 elytra fulvous, with four elevated lines, which are alternately a 

 little larger : the suture and exterior edge are also a little ele- 

 vated : interstitial spaces with numerous transverse elevated 

 lines ; terminal third of the surface violaceous-black : wings black- 

 ish at tip; feet sericeous. 



Numerous specimens were observed by Major Long's party in 

 Missouri and Arkansaw. They occurred in the prairies on 

 plants, and I found them to be especially abundant near the vil- 

 lage of the Konza Indians. 



It is, without doubt, closely allied to the preceding, but the 

 anterior band of the elytra is always deficient, the tibiae are some- 

 what more dilated, and there seems to be a greater difference of 

 size between the sexes, the male being proportionally smaller. 

 We cannot suppose it to be the L. dimidiatus Fabr., although 

 the general tenor of the description corresponds very well, inas- 

 much as he represents the antenna) to be flabellate, with elon- 

 gated serratures, and the base of the elytra to be rufous, whereas, 

 the antennae of this species are similar to those of the rcticulatus. 

 The black on the thorax of the female is reduced to a narrow 

 line. 



The upper right figure of the plate. 



[Belongs to Calopteron. — Lec] 



Lycus sanguinipennis. — Specific character. Thorax black : 

 lateral margin sanguineous : elytra sanguineous, immaculate. 



