30 NovrrATES Zoolooicae XXVI. 1919. 



5. Cabirus micha Druce (p. 576). 



This more nearly resembles heliconioides H.-S. The hyaline areas are much 

 enlarged, especially the apical patch on the forewing. It can only be considered 

 as a race and not as a distinct species. Cabirus dodona Druce represents another 

 race similar to heliconioides. 



6. Boisduvalia melessus Druce (p. 599). 



The type is a <J from Iquitos. A second S is in the Joicey collection, bear- 

 ing the label " Amazons, ex Staudinger." 



! 7. Westwoodia pelopia Druce (p. 656). 



Tiiis species bears such a striking resemblance to eryciiia Westw. that 

 Druce failed to examine it more closely. 



The type is imique and upon examining it for the first time we found it 

 to be a butterfly belonging to the family Erycinidae. We have referred it to the 

 genus Xena/idra on account of its neuration and general appearance. 



The extraordinary likeness of this species (imique among the Erycinidae) 

 to Castnia erycina Westw. ( = pelopioides Houlb.) led Houlbert to suppose that 

 it might prove to be the $ of his species. 



The figure of erycina in P.Z.S. 1881, pi. xii. fig. 4, gives a wrong impression 

 of the forewing in showing a red band ; this is an exaggeration of the metallic 

 gloss, the wing bemg without markings. 



Apparently only four specimens of erycina are known. Besides the type 

 in the Hope Museum, which has been kindly examined by Professor Poulton, 

 two cj J are in the Joicey collection {ex. Druce), and were collected by Buckley 

 at Chiguinda in Ecuador. As the Godman and Salvin moths passed into the 

 possession of Druce, these specimens are undoubtedly paratypes. Oberthiir's 

 type of pelopioides is clearly identical. 



It is to be expected that a form of Castnia resembling erycina will one day 

 be found in Colombia in association with the Erycinid pelopia. 



We will now proceed to discuss some other species concerning the treatment 

 of which we beg to differ from Monsieur Houlbert. We take them in the order 

 in which they ocoir in the monograph. 



1. Elina icarus Cram. (p. 326). 



Dr. Jordan, in Novitate.s Zoologicae 1906, pi. x., figures four forms of 

 Castnia under the name of icarus Cram., all from Paraguay, and considered by 

 him to belong to one variable species. 



Now Houlbert professes to have discovered three species among the four 

 figured by Jordan ; one he calls icaroides Houlb., one jordani Houlb., and the 

 other icarus Cram. The two former forms are separated by Houlbert from 

 icarus by the absence of the sub-apical white band on the forewing above. We 

 have examined a series of 39 icarus in the Joicey collection. The sub-apical 

 band is variable, and although it is not entirely absent in any one specimen, 

 yet it becomes indistinct in some individuals. The pattern on both wings is 

 subject to some variation, and one specimen from Venezuela closely approaches 

 jordani in the white markings of the huidwing ; no character appears constant. 



