224 ORTHOPTEEA. 



in making the almost impenetrable jungles at the borders of forests. It is possible 

 that they also occur among the fallen leaves within the shadows of the forests 

 themselves. 



^EOLACRIS, Scudder. 



Xiphicera, Auct., in part. 



JEolacris, Scudder, Proc. Bost. Soc. Nat. Hist. xvii. p. 269, footnote (1874) ; Pict. et Sauss. Cat. 

 Acrid, i. p. 10 (1887) ; Gig.-Tos, Boll. Mus. Torino, xiii. no. 311, p. 41 (1898). 



While no specimens of the genus JEolacris have come to light among the material 

 studied for this work, it is quite certain that it occurs upon the Isthmus of Panama 

 and possibly even in Costa Rica. Pictet and Saussure give both Ecuador and Colombia 

 as habitats for members of the genus. The species probably are : — 



1. iEolacris octomaculata, Scudder. 



Xiphicera octomaculata, Scudd. Proc. Bost. Soc. Nat. Hist. xii. p. 337 (1869) \ 

 JEolacris octomaculata, Scudd. Proc. Bost. Soc. Nat. Hist. xvii. p. 269 (1875) 2 ; Pict. et Sauss. 

 Cat. Acrid, p. 13 (1887) 3 ; Gig.-Tos, Boll. Mus. Torino, xii. no. 301, p. 3 (1897) \ 



Hab. South Ameeica, Ecuador x 2 4 , Peru 3 . 



Giglio-Tos 4 intimates that this insect is an Elceochlora and possibly the same as 

 E. octolunata, Serville. 



2. -Slolacris caternaulti, Feisth. 



Xiphicera caternaulti, Feisth. in Guerin's Mag. Zool. 1837, t. 184 l . 

 JEolacris caternaultii, Pict. et Sauss. Cat. Acrid, i. p. 13 (1887) 2 . 

 Xiphicera octolunata, Serv. Hist. Orthopt. p. 615 (£) (1839) \ 

 Xiphicera tricristata, Serv. loc. cit. p. 613 ( ? ) 4 . 



Hab. South America, Colombia 2 ~ 4 , Cayenne 1 . 



PRIONOLOPHA, Stal. 



Prionolopha, Stal, Recens. Orthopt. i. p. 27 (1873) ; Syst. Acrid, p. 14 (1878) ; Pict. et Sauss. 

 Cat. Acrid, i. p. 5 (1887). 



This genus is represented in the Lesser Antilles and in the northern portion of 

 South America, and almost certainly extends to Panama. While only one or two 

 species are recognized, there is much variation among the specimens from different 

 localities. When carefully collected and studied there will no doubt be additional 

 forms of the genus to record. P. serrata is more or less arboreal in its habits, and is 

 not uncommon in Colombia. 



1. Prionolopha serrata, Linn. 



Gryllus {Bulla) serratus, Linn. Syst. Nat. 10th ed. p. 427 (1758) \ 

 Acridium serratum, DeG. Mem. Ins. iii. p. 493, t. 41. fig. 6 (1773) 2 . 



