146 EHOPALOCEEA. 



Mr. Butler's figures seem to us to be much overcoloured ; the male, so far as our 

 experience goes, shows no such contrast of colour as is there depicted. 



RHABDODRYAS, gen. nov. 



Mr. Butler includes B. trite in the second section of his genus Phoebis, resting his 

 character upon the pencil of hairs which proceeds from the upper portion of the cell 

 close to the subcostal nervure of the secondaries, but he overlooked the existence of a 

 patch of closely packed scales between the costal and subcostal nervures. These 

 characters combined serve to separate B. trite from Callidryas philea and its allies ; 

 moreover the spine-bearing lobe on the inner side of the harpagones appears directed 

 upwards rather than downwards; there is a second shorter similar lobe at the base 

 of those organs. 



1. Khabdodryas trite. 



Papilio trite, Linn. Mus. Ulr. p. 248 l ; Syst. Nat. i. p. 763 2 ; Cram. Pap. Ex. t. 141. IP. C, D 3 . 



Callidryas trite, Butl. Lep. Ex. p. 121, t. 45. ff. 5-8 4 ; Bates, Journ. Ent. i. p. 239 5 . 



Phoebis trite, Butl. & Druce, P. Z. S. 1874, p. 361 e . 



Alis sulphureis, fere immarginatis : subtus gilvo-sulphureis, sericeo paullo micantibus ; anticis linea recta ab apice 



ad marginem internum fulva, posticis quoque linea recta ab apice per cellulse finem ad marginem internum 



fulva ornatis, his quoque lineis obsoletis discalibus fulvis notatis. 

 $ mari similis, sed alis pallide gilvis, marginibus et anticarum apicibus stricte nigricante limbatis. 



Eab. Mexico, Atoyac (H. H. Smith), Cordova (Bumeli) ; Guatemala, Duenas, Pacific 

 coast (F. D. G. & O.S.); Nicaragua, Chontales (Belt); Costa Rica (Van Patten 6 ); 

 Panama, Veraguas, Calobre (Arce), Tole (Champion). — South America to South Brazil; 

 Dominica. 



B. trite is a very definite species, and may at once be distinguished by a transverse line 

 on the underside, crossing the primaries from near the apex nearly to the inner margin, 

 and a similar line across the secondaries ; no other species having this character. 



Its distribution is wide like that of its congeners, and extends from Mexico to South 

 Brazil ; it is also found in the island of Dominica. It is, however, not so abundant as 

 the species of Callidryas and the allied genera, and females are quite rare. 



APHRISSA. 

 Aphrissa, Butler, Lep. Ex. p. 155. 



The terminal joint of the palpi of the male in this genus resembles that of the 

 members of the same sex of the allied genera, being small, and not more than a third 

 of the length of the middle joiiii In the female the terminal joint is long and 

 subcylindrical, and as long as the second joint. This sexual difference of these organs 

 is not found in any other species of the allied genera. The secondary male organs also 

 show peculiarities : the harpagones have attached to the middle of the dorsal edge a large 

 triangular projection, the outer edge of which is deeply, but irregularly, serrate ; at 



