RHINTHON". 533 



Hab. Mexico, Tierra Colorada in Guerrero (H. H. Smith), Atoyac (H. H. Smith & 

 Schumann), Valladolid in Yucatan (Gaumer) ; Panama, Taboga I. (G. Mathew).—So\iTK 

 Ameeica 1 , Colombia 2 to Brazil; Trinidad. 



Out of fifteen specimens of this insect now before us, five only are from Central 

 America ; these agree very well with Geyer's figure. Dr. Staudinger has lent us the 

 type of Pamphila irma, Moschler, from Colombia, and it clearly belongs to this species. 

 In its uniform brown upperside B. melius resembles Papias infuseatus (Plotz), but is 

 readily separable from it by the peculiar markings of the under surface and the presence 

 of a brand on the primaries in the male. The females, of which we possess two from 

 Atoyac, are far more brightly coloured beneath, the broad grey margins on the 

 secondaries leaving a dark patch extending from the costa across the discal area. 

 We figure a female specimen from Atoyac ; also the genitalia of the male, for which 

 see Tab. XCVIII. fig. 7. 



5. Khinthon epaphus, s P . n. (Tab. XCVIII. figg. 9, 10, <? .) 



Alis fuscis, stigmate concolore : subtus pallidioribus, posticis marginem externum versus late et ad angulum 

 analera sordide ochraceis, punctis duobus ultra cellulam (interdum obsoletis) colons ejusdem ; ciliis ad 

 angulum analem posticarum ocbraceis ; palpis griseo- fuscis. 

 2 mari similis, sed posticis subtus ad angulum analem late pallide ocbraceis, punctis duobus magis distinctis. 



Hab. Guatemala, Chisoy Valley (F. I). G. & 0. #.), Panima in Vera Paz (Champion). 

 — British Guiana. 



Of this species we have seen three specimens only, two males from the Atlantic slope 

 of Guatemala, and a female from Quonga, British Guiana, the latter sent to us by 

 Whitely. One of the males was labelled long ago by Salvin with the specific name 

 "epaphus, Mab.," but we have failed to find a published description of the insect. 

 The shape of the brand will easily separate B. epaphus from most of the allied forms. 

 It is much larger than either B. melius or B. megalops, and differs from both in having 

 the outer margin of the secondaries broadly suffused with ochreous beneath. For the 

 genitalia of the male, see Tab. XCVIII. fig. 10. 



6. Khinthon megalops, s P . n. (Tab. XCVIII. figg. 11, 12, 13, s .) 



Alis velutino-atro-fuscis, stigmate concolore : subtus ut in pagina superiore, sed rubescentibus, anticis angulum 



analem versus pallidiore ; capite, palpis et thorace supra viridi tinctis. 

 5 ignota. 



Hab. Mexico, Teapa (H. H. Smith) ; Costa Rica, Cache {Rogers) ; Panama, Chiriqui 

 (mus. Staudinger). 



This is a strikingly dark insect, differing from B. melius in having the underside of 

 the wings much more uniformly coloured. Four specimens only have been seen, two 

 of them belonging to Dr. Staudinger. The Teapa example is much smaller than the 

 others, and has the brand reduced to a very short longitudinal streak. From the 



biol. centr.-amee., Rhopal., Vol. II., November 1900. 3 z 



