PHTCANASSA. — ATKYTOKE. 489 



The antennae are less than half the length of the costa, and have a stout club, 

 terminating in a rather short crook. The palpi are somewhat porrect and clothed 

 with long hair-like scales ; the third joint is short, stout, and bluntly conical. The 

 primaries are broad ; the cell is less than two-thirds the length of the costa ; the disco- 

 cellulars are oblique, the lower one very short; the lower radial is depressed at the 

 base ; the first branch arises from a little before the middle of the median nervure, the 

 second close to the lower angle of the cell. The secondaries are broad; the disco- 

 cellulars faint. The body is robust. The middle and hind tibiae are spined, the latter 

 with two pairs of spurs. The primaries are without trace of a brand in the male. 



A figure of the male genitalia of the North-American P. viator is given on 

 Tab. XCIV. fig. 1. 



1. Phycanassa psaumis, sp. n. (Tab. XCIV. figg. 2, 3, 2 .) 



§ . Alis fuscis, anticis fascia curvata, angulata ad cellulse finem, ad medium venae submedianse extendente, 

 macula inter ramos medianos secundum et tertium quoque angulata, duabus minoribus marginem externum 

 propioribus, punctis tribus in linea transversa subapicalibus, fulvis ; posticis area discali coloris ejusdem : 

 subtus anticis ad basin obscurioribus, costa et apud cellulae finem fulvis, angulum analem versus late flavis, 

 maculis ut supra, anticis ad apicem et posticis omnino fuscis squamis griseis sparsim vestitis. 



Hob. Mexico, Bolanos in Jalisco {Richardson). 



Our description is taken from two females. They are obviously allied to P. viator 

 (Edwards), but differ from that insect in having the two spots between the median 

 branches in the transverse band of the primaries strongly angulate ; the underside, too, 

 of the secondaries is darker and more uniform in colour *. 



ATRYTONE. 



Atrytone, Scudder, Rep. Peabody Ac. Sci. iv. p. 77 (1872); Watson, P. Z. S. 1893, p. 111. 



Watson gives Hesperia iowa, Scudd. (=H. arogos, Boisd.), as the type of this genus, 

 and includes several other species in it, all from North America. We refer numerous 

 Central-American forms to Atrytone, which agree in the following characters : — 



Antennas not or barely half the length of the costa, with a short stout club, terminating 

 abruptly in a short crook. Palpi with the third joint very short, bluntly conical. 

 Primaries with the cell less than two-thirds the length of the costa; the discocellulars 

 oblique, the lower one very short ; the lower radial much depressed at the base ; the first 

 branch arising a little before the middle of the median nervure, the second close to the 

 lower angle of the cell. Secondaries slightly lobed at the anal angle, the discocellulars 

 faint. Body robust. Middle and hind tibiae more or less distinctly spined, the latter 

 with two pairs of spurs. The primaries without trace of a brand in the male. 



In all the species referred by us to Atrytone, except A. delaware, A. mella, A. mellona, 



* We have received four examples of an allied form from Colombia, one of which was sent us by Dr. Staudinger 

 under the name of Pamphila azin, Mabille ; but this is a very much smaller insect. 



