CYDKUS— AIDES. 513 



blunt at the tip, and concave on the outer margin ; the cell is three-fifths the length of 

 the costa; the discocellulars are very oblique, the upper one three times as long 

 as the lower, the latter about half the length of the third median segment ; the first 

 branch arises considerably before the middle of the median nervure, the second a little 

 before the lower angle of the cell. The secondaries are slightly lobed at the anal 

 angle; the discocellulars are oblique, the upper one faint. The body is robust. 

 The middle tibiae are furnished with long spines, the hind tibiae with two pairs of 

 spurs. The primaries of the male have a broad oblique brand extending from near 

 the base of the second median branch to the submedian nervure slightly before the 

 middle, filling the angle between the second median segment and the first median 

 branch. 



1. Cydrus naevolus, sp. n. (Tab. XCVI. figg. 19, 20, 20 a, 21, s .) 



Alis fuscis, stigmate obscuriore, anticis maculis tribus in linea obliqua, una ad venam submedianam, 

 secunda elongata et irregulari inter ramos medianos primum et secundum, tertia ultra earn subquadrata. 

 duabus in cellula, quatuor subapicalibus in linea obliqua, omnibus albo-byalinis ; posticis macula ad 

 cellulae flnem, quatuor aut quinque ultra earn in linea curvata transversa, fere obsoletis, flavidis : subtxis 

 ut supra, alis purpureo tinctis, posticis maculis magis distinctis et squamis albidis sparsim vestitis ; 

 palpis griseis. 



$ mari similis. 



Hdb. Mexico, Coatepec (coll. Schaus), Atoyac in Vera Cruz (H. II. Smith) : 

 Guatemala, Eio Chisoy (F. D. G. & 0. S.) ; Panama, Chiriqui (mus. Staudinger). — 

 Brazil, Chapada. 



Of this species we have seen four males and three females, six of which are from 

 Central America. The specimen lent us by Dr. Staudinger is unnamed. A male 

 from Coatepec is figured. For the genitalia, see Tab. XCVI. fig. 21. 



AIDES. 



Aides, Billberg, Enum. Ins. p. 81 (1820). 



Watson places Papilio epitus, Cram., under Calpodes, but this insect does not agree 

 with his definition of that genus, while at the end of his paper (/. c.) he again notices 

 it as the type of Aides, Billb. We here adopt Billberg's name for Cramer's species, 

 and associate with it Hesperia cestria, Hew., and two nearly allied forms *, all from 

 Tropical America, one of them not entering our limits. They have a large irregular 

 silvery patch, sometimes d'vided into spots, on the disc of the secondaries beneath. 



The antennee are moderately long, with a stout, elongate club, terminating in a long 

 crook. The palpi are densely scaled, the third joint very short and almost concealed. 

 The primaries are elongate, concave on the outer margin, and rather blunt at the tip ; 



* In one of these the brand is in four pieces, and this will probably prove to be the case in A. cestria 

 and A. dysoni also. 



