AMERICAN ENTOMOLOGY. 35 



white : elytra with a white spot on the shoulder, another equi- 

 distant from the first and the band : band broad, arising from the 

 middle of the margin, refracted at the centre of the elytrum, 

 and terminated near the suture in a line with the tip of the third 

 spot ; this spot is large, orbicular, and placed near the external 

 tip of the terminal one, which is transverse and triangular : body 

 beneath green : trochanters and tail purple. 



Olis. The specimen from which this description and the 

 annexed representation were taken, is a female, the only one I 

 have seen : it was caught by Mr. Nuttall, on the sandy alluvions 

 of the Missouri, above the confluence of the river Platte. 



Upper figure of the plate. 



[This species is unknown to me ; it resembles the green vari- 

 eties of C. purpurea, but difiers by the middle fascia of the elytra 

 being more suddenly bent, and more prolonged behind. — Leg.] 



CiCiNDELA FORMOSA. — Specific character. Red cupreous, 

 brilliant; elytra with a three branched, broad white margin. 



Desc. Front hairy : labrum large, three-toothed : elytra with a 

 broad white border, anterior and posterior branches short, inter- 

 mediate one flexuous, nearly reaching the suture ; edge of the 

 elytra green ; body beneath green or purple-blue, very hairy : 

 thighs blue, tibia green. 



Length seven-tenths, breadth one-fourth of an inch. 



Ohs. A beautiful species; it was captured by 3Ir. Thomas 

 Nuttall, on the sandy alluvions of the Missouri river, above the 

 confluence of the Platte. 



Lower figure of the plate. 



.EGERIA. 



Generic character. Antennae fusciform [fusiform?] ; palpi long, 

 separate, covered with long scales or porrected hair ; wings hori- 

 zontal in repose ; abdomen bearded at tip. 



Obs. Fabricius formed this genus for the reception of such spe- 

 cies of the genus Sesia, as have the palpi prominent, distinct, and 

 covered by elongated scales. As Sesia now stands, it differs from 

 the present, by the short palpi, which are covered by short, close- 

 set scales ; and their terminal joint is very short, tuberculiform ; 

 Lamarck, however, applies the name Sesia to the present genus. 



The wings in the various species of uEgeria are chiefly trans- 



