Mr. A. G. Butler on Madagascar Lejridoptera. 341 



30. Mydrodoxa splende?is, sp. n. 



Primaries above with the basal two thirds fiery cupreous, 

 gradually shading off into golden green at the margins and 

 crossed by a broad, velvety, greenish -black belt ; external 

 third dark shining blue-green; base of inner margin shining 

 dark green : secondaries shining steel-blue, greenish in certain 

 lights, with the base and costal border blackish : irons, collar, 

 pro-, and mesothorax velvety black ; three basal segments of 

 abdomen and body below steel-blue, varying to dark green ; 

 vertex of head, metathorax, the four posterior segments of 

 abdomen, and anal tuft carmine-red. Wings below golden 

 green, changing to blue-green towards the internal borders ; 

 internal border of primaries purple. Expanse of wings 

 1 inch 9 lines. 



This magnificent moth reminds one, in the size, form, and 

 coloration of its wings, of the New- World genus Eupyra ; in 

 its shorter head and shorter and more slender palpi 3 and in its 

 neuration, it approaches more nearly to the typical Arctiidee. 



(Typical) Arctiidae. 



31. Daphamura fasciata. 



Dapluenura fasciata, Butler, Ann. & Mag. Nat. Hist. ser. 5, vol. ii. 

 p. 457 (1878). 



The specimen now received exhibits a structural character 

 not visible in the typical examples, but first pointed out to 

 me by Mr. Druce in specimens in his collection : the male 

 possesses an enormously developed pair of scent-fans in the 

 form of broafl compressed curved brushes, apparently jointed 

 at the base, and capable of retraction behind the hairy 

 clothing of the posterior coxee. In my typical male these fans 

 are completely concealed ; but in the specimen now obtained 

 they are fully exserted, are of a sandy yellow or testaceous 

 colour, and are 4 lines in length. 



Epicausis, gen. nov. 



Body broad, long, robust, hairy, with enormous anal tuft ; 

 antennae thick, very feebly pectinated; palpi moderately long, 

 distinctly visible in front of the head. Primaries very long, 

 subtriangular, with straight costal and slightly convex ex- 

 ternal and inner margins ; costal vein extending to fourth 

 fifth of costa ; subcostal five-branched, first branch emitted 

 from third fourth of anterior margin of cell, other veins 

 exactly as in Acronycta (see Trans. Ent. Soc. 1879, pi. xi. 

 fig. 1). Secondaries short, about half the length of primaries, 



