412 MR. A. G. BUTLER ON THE 



brown ; secondaries with the costal half bright metallic green ; anal 

 half brownj with the veins, outer margin, and tail blue-green ; wings 

 dark shining blue-green ; the apex of primaries (excepting the ner- 

 vures) broadly dark brown : body black ; coxas of first four legs 

 bright metallic green, hind pair shining yellowish cream-colour, re- 

 mainder of legs in certain lights dark blue-green ; venter in some 

 lights dark green : expanse of wings 47 millims. 

 Espiritu Santo {Uiggins). Type, B.M. 



This remarkable species forms a natural transition from the 

 Illipula to the Antic/doris group of genera ; it is, however, easily 

 distinguished from all Zygaenidge by the peculiar shape of the 

 secondaries. 



In the succeeding genera the first branch of the subcostal ner- 

 vure springs freel}^ from the discoidal cell. 



Genus Cekamidia, n. gen. PI. XXIX. fig. 3. 



"Wiugs opaque ; secondaries with subcostal branches emitted 

 independently of each other ; the discocellulars oblique, an- 

 gulated ; the median branches emitted near together close to 

 the lower extremity of the cell ; recurrent false nervure not 

 reaching to the base of the cell : body rather slender ; abdo- 

 men cylindrical, smooth, with a short terminal tuft of hair in 

 the males. Type C.fiimipennis, Walker. 



1. Cekamidia FUMii'ENNis = Euchromia(Pampa) himi-penms. Walker, 

 Lep. Het.lp. 241. n. 66. 



Ega (Bates). Type, B.M. 



2. C. CATALEUCA, U. sp. 



Like C . fumipennis above ; basal area of primaries below paler; secon- 

 daries below with a broad central creamy-white band from costa to 

 abdominal margin : expanse of wings 35 millims. 



E. Peru {Degand). Type, B.M. 



Genus Passineuea, n. gen. PI. XXIX. fig. 4. 



Nearly allied to the preceding geuus, but the cell of seconda- 

 ries projecting prominently forwards at its anterior extremity, 

 thus shortening the subcostal branches and increasing the 

 angle of the discocellulars ; antennse rather thicker. 



Type P.fusiformis, Walker. 



