PTRALID^. 257 



tip of palpi, and legs black ; femora beneath, and bands on the tibia3 and tarsi 

 white. 



Expanse 1-g- inch. 



Genus LETCHENA. 



Forewing narrow, trigonate, apex very acute, exterior margin very oblique ; 

 cell three-fifths the length ; first subcostal emitted at about one-half before end of 

 the cell, fifth from the end ; radials fi'om upper and lower angle of discocellular ; 

 middle median from close to end of the cell, lower at one-half : hindwing short, 

 apex convex, anal angle rather pointed ; cell one-third the length ; first subcostal 

 from before end of the cell ; radial from lower end of discocellular ; middle median 

 close to end of the cell; lower about one-half. Body stout; abdomen smooth ; palpi 

 small, oblique, smooth, cylindrical, second joint extending slightly beyond the head, 

 third joint very short, obtuse ; antennae thick, simple ; legs squamous, tibice thickish, 

 spurs long. 



Type, L. Thyralis. 



lETCHENA THYRALIS (Plate 178, Fig. 10). 

 Pyralis Thyralis, Walker, Catal. Lep. Het. B. M. xxxiv. p. 1234 (1865). 



Chalybeous olivaceous-cinereous ; shining, smooth. Both wings with a black- 

 speckled red marginal border; cilia white. Forewing with a transverse discal 

 cluster of five yellow and red-bordered black-hned diaphanous-white spots ; some 

 black points along the costa. Palpi, tibia?, and tarsi with black bauds; tip of 

 abdomen white. 



Expanse to inch. 



LETCHENA ELARALIS. 



Pyralis Elaralis, Walker, Catal. Lep. Het. B. M. xix. p. 901 (1859). 

 Chalybeous cinereous-red. Both wings numerously covered with short trans- 

 verse brown striga3. Ciha paler, with a black inner line. Body brown-speckled ; 

 tip of abdomen reddish ; palpi and legs cinereous-brown ; tarsi with blaek bands. 

 Expanse yV inch. 



Genus STERICTA. 



Glossina* Guenee, Delt. et Pyr. p. 124 (1854) ; Walker, Catal. Lep. Het. B. M. xvii. p. 273. 

 Stericta, Lederer, Pyr. Wien. Ent. Monats. vii. p. 340 (1863). 



Male. Forewing elongated, rather broad ; apex pointed, exterior margin oblique, 

 slightly convex, posterior margin convex towards the base ; cell extending to near 

 half the length ; first subcostal emitted at two-fifths before end of the cell, second 

 free, third trifid ; discocellular deeply concave, radials from the ends ; middle median 

 close to end of the cell, lower at one-third ; submedian slightly curved, with a short 



* Used in 1830 for a genus of Diptera. 

 VOL. III. L 1 



