226 MR. F. MOORK ON LIMNAINA AND EUPLCEINA. [Apr. 17, 



Cadytis, U. g. 



Fore wing more triangular than in Amauris, the costal margin 

 straighter ; cell narrower ; discocellulars less obliquely convex, lower 

 discocellular slender at upper end ; no discoidal spur. Hind wing 

 slightly produced at the apex, exterior margin somewhat straight 

 anteriorly and convex posteriorly, abdominal margin very iong. 

 Male : hind wing -with the area on both sides of tlie submedian vein 

 numerously cohered with fine long hairs. 



Cadytis vashti. 



Banais vashti, Butler, Cist. Ent. i. p. 1 (1869). 

 Amauris vashti, Butler, Lep. Exot. i. pi. 21. t'. 1 (18/1). 

 Hab. Old Calabar. 



B. One "sexual mark " or scent-producinff organ on hind wing. 



a. Sexual mark on submedian vein. 



Genus Amauris. 



Amauris, Hiibner, Verz. bek. Schmett. p. 14 (1816); Reakirt, 

 Pioc. Acad. Nat. Sci. Phil. 1866, p. 240. 



Danais (sect, i.), Doubledav, Gen. D. Lep. p. 89 ; Butler, P. Z. S. 

 1866, p. 43. 



Fore wing long, narrow, triangular, apex convex, exterior margin 

 very oblique, posterior margin straight ; subcostal vein straight, first 

 branch emitted at one fourth before, and second branch close to, end 

 of the cell, second extending to near apex ; third branch trifid ; cell 

 long, narrow ; discocellulars obliquely concave, upper longest, lower 

 slender at upper end ; upper radial emitted from end of the cell ; 

 submedian vein undulated, emitting a short slender veinlet from 

 below near the base. Hind wing broadly conical ; costal margin 

 nearly straight, exterior margin convex, abdominal margin long ; 

 costal vein much curved at base and extending along edge of the 

 margin ; first subcostal emitted at half length of the cell, much 

 curved, second branch quite straight ; cell broad ; discocellulars very 

 oblique. Male with a lengthened oval glandular patch or scent- 

 producing organ on the submedian vein near its end, where the vein 

 is also slightly swollen ; abdomen with a pair of large flat conchi- 

 forni anal claspers, from above which are exserted a pair of large 

 pencils of hair. Antennse long with moderately well-formed club. 

 Palpi ascending to vertex, flattened ; first and second joints pilose 

 beneath ; third joint rather long, projected forward in front of the 

 head, squamose. Legs long, slender. 



Type d. niavius. 



1. Amauris niavius. 



Papilio niavius, Linn. Mus. Ulr. p, 253 (1764) ; id. Syst. Nat. 

 i. 2, p. 766 (1767); Clerck, Icon. ii. pi. 32. f. 2 (1764); Cramer, 



