512 EHOPALOCERA. 



Mabille ; these show no tangible differences. We have examined upwards of one 

 hundred specimens. 



Two males have been dissected, one from Florida, the other from Atoyac ; their 

 genitalia scarcely differ from those of P. new : see Tab. XCVI. fig. 15. 



Our figure of the insect is taken from a specimen from Tierra Colorada, that given 

 by Edwards being scarcely recognizable. 



7. Prenes vala. (Tab. xcvi. figg. 16, 17, 18, s .) 



Pamphila vala, Mab. Compt. rend. Soc. Ent. Belg. xxxv. p. clxxvi (189]) \ 

 Pamphila actor, Mab. loc. cit. p. clxxxii 2 . 



Alis fuscis, anticis maculis parvis tribus, una in cellula (interdum obsoleta), dnabus infra earn, ea inter 

 ramos medianos primum et secundum transversa, punctis duobus (interdum uno) minutis in linea 

 transversa subapicalibus, omnibus hyalinis : subtus pallidioribus, maculis ut supra, striga supra venam 

 submedianam angulum an alem versus albescente; posticis linea transversa maculosa fere obsoleta ultra 

 cellulam pallida ; corpore et palpis subtus pilis canescentibus. 



§ mari similis, sed obscuriore, supra maculis minoribus, iis in cellula et punctis subapicalibus absentibus. 



Hdb. Mexico, Paso de San Juan [coll. Schaus), Orizaba (H. J. JElwes), Atoyac, 

 Fortin, Teapa (H. H. Smith) ; Guatemala, San Geronimo {Champion) ; Panama, 

 Chiriqui 1 2 (mus. Standing er, Bibbe). — South Amekica to Brazil. 



This species, which we somewhat doubtfully refer to the present genus, is not 

 uncommon in Central America, whence we have numerous examples. Dr. Staudinger 

 has lent us the type of Pamphila vala, as well as a specimen of P. actor determined 

 by Mabille ; both are males. He has also sent us examples labelled Pamphila dama, 

 H.-S., P. tripuncta, H.-S., and P. orope, Plotz (= corope, H.-S.). We fail to see any 

 differences between these insects, and as none of them seem to accord with Herrich- 

 Schaffer's descriptions, we adopt the name P. vala, Mab., for it. 



The females have the primaries blunt at the apex, and the wings in this sex often 

 have a purplish lustre on the upperside. We have dissected two males, one from 

 Chapada, Brazil, and the other from Atoyac, Mexico ; and these show no difference, 

 the genitalia being very peculiarly formed : see Tab. XCVI. fig. 18. 



Our figure of the insect is taken from Mabille's type of P. vala. 



CYDRUS, gen. nov. 



The single Central-American species for which we propose the above generic name 

 is very like Prenes and Calpodes in the shape of the wings, the primaries being greatly 

 produced, and concave on their outer margin; these wings, however, have a large 

 oblique brand in the males, which is not the case in either of the genera mentioned. 



The antennae are about half the length of the costa and have a rather short club, 

 terminating in a long crook. The third joint of the palpi is very short and bluntly 

 conical. The primaries are narrow, greatly produced, arched on the costa at the base, 



