530 EHOPALOCEEA. 



albida, area mediana obscuriore; posticis puncto ad cellulae finem et aliis quatuor in serie transversa 

 ochraceis ; capite et thorace supra viridibus ; palpis subtus griseis, abdomine albido. 

 2 mari similis, sed subtus pallidiore et posticis maculis albidis (nee ocbraceis). 



Hab. Guatemala, San Geronirao (Champion); Nicaeagua, Chontales (Belt); Costa 

 Rica, Cache (Rogers) ; Panama, Chiriqui 2 (Ribbe, mus. Staudinger l ). 



We have seen eight males and two females of this insect from within our limits. 



Dr. Staudinger has lent us Mabille's type of P. stilio and also that of P. modius, both 

 males, from Chiriqui; he has likewise sent us examples of the same species under 

 the name of Carystus eocalus, but we do not find that this last appellation has been 

 published. We figure the type of P. modius, Mab., from Chiriqui; also the fore 

 wing of the male, to show the position of the brand (Tab. XCVII. fig. 37), and the 

 genitalia of the male, for which see Tab. XCVII. fig. 38. 



2. Thoon taxes, sp. n. (Tab. XCVII. figg. 39, 40, 6 .) 



Alis fuscis, anticis stigmate nigreseente, maculis duabus in linea obliqua infra cellulam, una elongata inter 

 ramos medianos primum et secundum, altera minore et subquadrata ultra earn, hyalinis, macula submediaua 

 valde indistincta flavida: subtus ut supra, sed dilutioribus, posticis punctis indistinctis quatuor ultra 

 cellulam in linea curvata ochraceis. 



§ ignota. 



Hab. Panama, Chiriqui (mus. Staudinger). 



Dr. Staudinger has lent us a worn male specimen of this insect, which may be 

 distinguished from many other similarly-coloured species by the form of the brand on 

 the primaries, this being black and conspicuous. 



T. taxes is not unlike (Bonus pyste, but the brands are very dissimilar in shape. It 

 differs from T. modius in having much smaller hyaline spots on the primaries, and the 

 secondaries immaculate above. 



RHINTHON, gen. nov. 



The six Tropical-American species referred to this genus, all occurring within our 

 limits, differ from the other Pamphilinee known to us in the position of the brand 

 on the primaries in the male, this, in the form of a single longitudinal streak, being 

 placed along the upper edge of the submedian nervure, at or before the middle. 

 Proteides chiriquensis, Mab., is taken as the type, and the other species are Thracides 

 melius, Hiibn., Hesperia cynea, Hew. (= Carystus erebina, M6schl.),and three new ones 

 described below. R. chiriquensis differs from the others in having large hyaline spots 

 on the primaries. The males of all of them have, in addition to the brand, a more or 

 less distinct fringe of long hairs on the fore wings below the submedian nervure 

 towards the base, and also some long hairs along the upper edge of the abdominal fold 

 of the secondaries. The genitalia of R. cynea, R. alus, and R. melius are extremely 

 similar, those of the other species differing inter se. 



