Vol. XXVlii] ENTOMOLOGICAL NEWS. 1 15 



Chanchamayo, Peru. Three males, four females. [A. N. S. 



P.] 



The Chanchamayo series clearly belongs to this species, but 



may represent a new geographic race characterized by the 

 greater compression oft the pronotum. 



Peucestes dentatus Stal. 



1874. r[cuccstcs] dentatus Stal, Recensio Orthopt, II, p. 45- [Pan- 

 ama; Cayenne.] 



Orotina, Costa Rica. X, u, 1915. (A. Alfaro; night.) One 

 female. [A. N. S. P.] 



Costa Rica. Two females. [A. N. S. P. and Hebard Cm.] 



Panama. One male. fU. S. N. M.] One female. [Hebard 

 Cln.] 



Cauca, Colombia. One male. [A. N. S. P. ] 



The species dentatus appears to us to be quite distinct from 

 coronatus. Saussure and Zehntner seem to have had the best 

 conception of the species of this genus and their relationship. 



The genus Steirodon is dangerously close to this species, as 

 we have already remarked above. Females of this species, as 

 we understand it, have the distal rami of the median vein of 

 the tegmina reaching to apex. 



The Panama male is slightly different from the Cauca indi- 

 vidual, but the differences are not specific. 



Peucestes champion! Saussure and Zehntner. 



1898. Peucestes championi Saussure and Zehntner, Biol. Cent.-Amer., 



Orth., I, p. 371, pi. XVIII, figs. 6 to 9. [Panzos, Vera Paz, 



Guatemala; Cachi (Cache), Costa Rica.l 



Cachi, Costa Rica, 3500 feet elevation. (C. H. Lankester.) 

 One male. [A. N. S. P.] 



This specimen is perfectly typical of the species. We do not 

 feel sure that Saussure and Zehntner's sex association is cor- 

 rect, as the female, from the figure, seems quite different. We 

 have, however, no evidence on this except that furnished by the 

 figures. 



Generic divisions united by Brunncr under Posidippus. 

 A. Cephalic margin of pronotal disk with median tooth. Tegmina 

 proportionately broad; marginal field equal to one-half tegminal 

 width at proximal third. Median and caudal tibiae not distinctly 



