1881.] I'ROF. J. O. WKSTWOOD ON NKW EXOTIC iMOTHS. 141 



2. Vioa carteri, p. 129. 



a. Skeleton-spicule, X 134 diaiii. ; b. Different forms of tbe flesli- 

 spicule, X 375 diam. 



3. Eeniera fortior "i , p. 12G. 



a. External portion of section of skeleton perpendicular to sur- 

 face, X 34 diam. ; b. Main-skeleton spicule, X 375 diam. 



4. itlardoa iKlagka, p. 133. 



a. Spicules of main wall in their natural mutual positions, as 

 seen in a section perpendicular to surface, X 34 diam. ; b. Portions 

 of two of the fine acerate spicules, X 07 diam. 



5. Aphroccrafi scricatum, p. 134. 



a. Spicules of maiu wall in their natural mutual positions, as in 

 fig. 4 (7, X 34 diam. ; h. Portions of fine acerate spicules, X 34 diam. 



6. Aphrocerus caminus, p. 135. 



a. Spicides of main wall in their natural mutual positions, as in 

 fig. 4, a, X 34 diam. ; b. Portions of fine acerate spicules, X 67 diam. 



7. Aphroccms caminus'i, var. crassior, p. 135. 



a. Spicules of main wall in their uatm'al mutual positions, as in 

 fig. 4 a, X 34 diam. ; b. Portions of fine acerate spicules, X 157 diam. 



8. Grantia atlanfica, p. 130. 



Spicules of main wall in their natural mutual positions, with 

 the exception of the acerate, which is displaced inwards, X 34 diam. 



3. Descriptious of some new Exotic Species of Moths. By 

 J. O. Westwood, M.A., F.L.S., &c. 



[Eeceived December 1.5, 1880.] 



(Plates XII., XIII.) 

 Genus Castnia, Fabricius. 

 Castnia krycina, sp. uov. (Plate XII. fig. 4.) 



Species minima in genere : alis unticis nigro-fuscis, certo situ 

 metalUee, hasi chalybeo-, apice viridi-nitidis ; alis posticis supra 

 cIialybeo-7iigris , costa late sanguinea, dimidio postico Icete viridi- 

 argenteo, venis nigris diviso ; corpora antennisque nigris chalybeo 

 tinctis. 



Expans. alarum anticarum lin. 19. 



Hab. Eastern Ecuador (^McHey). Li Mus. Salvin et Godman; 

 etiam in Mus. Hopeiano Oxonise. 



This lovely little insect formed part of a collection of insects from 

 Eastern Ecuador, belonging to Messrs. Godnian and Salvin, to whom 

 the Hopeian Collection is indebted for a specimen. It was at first 

 regarded as a butterfly and placed in the family Erycinidse, to some 

 of the species of which it bears a striking resemblance. The arrange- 

 ment of the veins of the wings, however, proves its position in the 

 genus Castnia, with none of the species of which, however, does it 

 possess a very decided relationship. The branches of the postcostal 

 vein form an oblong cell in front of the anterior division of the dis- 

 coidal cell, which is closed in its upper part by the angulated base 

 of the two discocellular veins (See fig. 1, p. 142, b 5* and c 3*). 

 The anal vein emits a short branch in the middle of its hinder margin. 



Mr. Clarence Buckley, by whom this species was captured, informs 

 me that he took the specimens at Sarayacu, in a little clearing caused 



