388 Mr. A. G. Butler on Madagascar Lepidoptera. 



rose-coloured, thorax in front and collar ochraceous ; palpi and 

 head deep rose-coloured ; antenna ochreous ; margins of ab- 

 dominal segments ochreous. Under surface nearly as above, 

 but the markings less distinct. Expanse of wings 4 inches 

 4 lines. 



Limacodidae. 

 Croth.ema, gen. now 



$ • Aspect of Edibessa, but apparently nearer to Alpis. 

 Primaries trigonate, the costal margin nearly straight, outer 

 margin very slightly convex, inner margin distinctly convex ; 

 under surface of primaries deeply hollowed out behind the 

 costal border, which consequently stands up like a wall in 

 front of the cell ; costal vein extending to second third of costa, 

 discoidal cell very wide ; subcostal vein five-branched, the first 

 three branches emitted before the end of the cell, the fourth and 

 fifth from the same point at the anterior extremity of the cell ; 

 upper discocellular transverse, emitting the upper radial from its 

 centre; lower discocellular oblique, so that the lower radial looks 

 like a fourth median branch ; two convergent recurrent veins 

 from the discocellulars to beyond the middle of the cell, median 

 veins emitted at equal distances towards the end of the cell. 

 Secondaries ovoid ; costal vein extending to apex ; subcostal 

 two-branched, both emitted from the end of the cell, but not 

 from the same point ; discocellulars zigzag, emitting the radial 

 from the middle and sending back two convergent recurrent 

 veins into the cell as in the primaries ; median vein three- 

 branched. Body rather slender for the family; antennas thick 

 and compressed, but not pectinate ; legs rather long, tibia? 

 with long spurs. Type C. sericea. 



43. CrotJ/a>?na sericea, sp. n. (no. 56). 



Primaries above silky pink ; a patch at base of costa, a 

 broad, irregular, interrupted, oblique central patch and an 

 oblique apical patch bronzy greenish, with whitish borders : 

 secondaries salmon-coloured, sericeous: thorax bronzy greenish, 

 abdomen bright rose-red. Under surface rose-coloured, costal 

 margins and apices of wings and legs yellowish. Expanse of 

 wings 1 inch 7 lines. 



Cossidae. 



44. Hypopta hreviculus. 

 Cossus brcvkuhis, Mabille, Ann. Soc. Ent. France, 1880, p. 344. 



<$ . Primaries snow-white, clouded with grey and trans- 

 versely reticulated with grey and black; a quadrate reddish- 



