236 THE CANADIAN ENTOMOLOGIST. 



clypeus. It agrees with Exyra also in the unition of 8 and 7 at base, but 

 the accessory cell is shorter even than in nigrofimbria. On the other 

 hand, vein 9 is longer than in the latter and differs from Exyra greatly in 

 this respect. This species has been taken in Texas by Belfrage in April 

 and May. Its generic position may afterwards be changed, but I leave it 

 for the present where it was placed by Guenee. It is easily known by its 

 lemon yellow thorax and base of primaries, which are outwardly purply 

 black, the line dividing the two colors being oblique. It varies slightly in 

 the extent of the darker external portion of the wing. 



Exyra semicrocea Guen. 



Fore wings 12-veined, the accessory cell greatly elongated, veins 8 

 and 7 united at base. 9 a very short furcation. Hind wings with vein 5 

 nearly as strong as the rest. Front not elevated, rather narrow with a 

 slight inferior tubercle. Squamation of palpi, head and thorax long, thick 

 and hairy or consisting of narrow scales. Fore wings broad with blunted 

 apices. I have not been able to thoroughly examine all the species, but I 

 refer to this genus semicrocea Guen., Ridingsii Riley, fax Grote,and Rolandi- 

 ana Grote. The latter, one of our most brilliant Noctuids, is described in 

 Psyche, II., 38, where also the larva, which feeds on Sarracenia purpurea, 

 is described by its discoverer, my friend Mr. Roland Thaxter, after whom 

 the species is named. Mr. Jas. Ridings brought specimens of semicrocea 

 and Ridingsii from Georgia, but when the material was submitted to me 

 I did not recognize the latter as a distinct species. Mr. Townend Glover 

 discovered the larva of semicrocea feeding on Sarracenia violaris, and sent 

 me a drawing of it now many years ago. It has been fully illustrated by 

 Prof. Riley, Trans. St. Louis Academy, Vol. iii. 



Prothymia Hiib. 



After a careful examination of the type of P. subolivacea Harvey, I 

 regard it as a synonym of P. orgiae. Three species are described from 

 our territory : P. coccineifascia Grote, P. rosaiba Grote, and P. orgiae 

 Grote. This latter is pale yellow with the external margin shaded with 

 rosy. Two faint, obscure, shade lines take the place of the subterminal 

 and t. p. lines ; these lines are even, sub-parallel, oblique or slightly 

 curved. Two minute superposed dots take the place of the reniform. In 

 subolivacea the tone of the wings is slightly olivaceous and the thorax and 

 base of the wing and internal margin shaded with pale rosy. Otherwise 



