148 



11 from discal cell; hind wing with veins 3, 4 from angle of cell; 6 obsolescent 

 from about one-third below middle of discocellulars ; 6, 7 shortly stalked from 

 upper angle ; 8 anastomosing with cell near base only. End of female abdomen 

 with a dorsal and a ventral furcate plate. 



The present genus would key to Bryomoea Stand., in Hampson, 

 Cat. Lep. Phal. B. M. ; from which it differs in possessing much 

 shorter palpi ; lack of crests on the second and terminal abdominal 

 segments ; heavier build ; veins 6 and 7 of the hind wing stalked in- 

 stead of connate ; besides possessing an entirely different wing-shape 

 and habitus ; and other more or less minor features. 



Hampson's diagnosis of Achcrdoa Wlk. (=Varina Neum.) is 

 erroneous in several respects; veins 6 and 7 of the secondaries are 

 stalked, not connate ; the tibiae are not conspicuously fringed with 

 hair, but are rather densely clothed with scales with only a few hairs 

 intermixed; and the metathorax possesses a very strong tuft. The 

 genus appears distinct from Bryomoea, to which it would fall in 

 Hampson's key, by the stalking of veins 6 and 7 of the hind wings, 

 much shorter palpi, and bipectinate male antennae. 



Meropleon differs from Acherdoa by possessing very hairy tibiae; 

 the largest dorsal abdominal tuft being on the fourth instead of the 

 third abdominal segment, while the female possesses on the end of 

 the abdomen dorsal and ventral furcate plates similar to those of 

 Archanara Wlk.; the larvae being borers, similar in appearance to 

 those of Archanara sp., while the larvae of Acherdoa are apparently 

 open feeders. There are additional differences in the frons and vesti- 

 ture, but the male antennae, the female genitalia and the hairy tibiae 

 will probably prove the easiest characters to use. 

 Meropleon cosmion Dyar. 



1924, Dyar, Ins. Insc. Menst., XII, 21, Meropleon. 



Head and palpi dark rufous-brown ; collar similar, but with an additional 

 violaceous-grey tinge; patagia rufous-brown, outlined by black; center of thorax 

 violaceous-grey ; metathorax mainly occupied by a large spreading rufous- 

 brown crest edged with darker brown and black; abdomen ochreous-rufous 

 sprinkled with black scales. Primaries : ground color violaceous-grey, suffused 

 with rufous-brown, blackish-brown, and black, and dusted with scattered black 

 scales ; costal area as far as the t. p. line violaceous-grey, the same shade 

 occupying the basal area above the median vein, marking the median vein as 

 far as the end of the reniform; the orbicular of the same shade, more or less 

 ovate, oblique, its cephalic mesiad. conjoined to the costal shade, its caudal 

 part distad and conjoined to the shade along the median vein; reniform crescent 

 shaped, obsolescent, more or less marked by a few black scales, its center rufous, 



