CHEOMACRIS. 239 



2. Chromacris miles, Dmry. 



Gryllus miles, Drury, Illustr. Nat. Hist. ii. t. 42. fig. 2 ( ? ) (1773) \ 



Locusta (Rutidoderes) miles, Westw. in Drury's Illustr. Exot. Ent. ii. p. 89, t. 42. fig. 2 ( $ ) (1837) 2 . 



Rhomalea miles, Pict. et Sauss. Cat. Acrid, i. pp. 19, 20 (1887) 3 . 



Gryllus speciosus, Thunb. Mem. Acad. St. Petersb. ix. p. 404, t. 14. fig. 1 (1824) \ 



Acridium speciosum, Serv. Hist. Orthopt. p. 673 ( ? ) (1839) 3 . 



Rhomalea speciosa, Stal, Recens. Orthopt. i. p. 51 (1873) ° ; Bolivar, Viaje al Pacifico, Orthopt. 



pp. 34, 35 (1884) \ 

 Acridium xanthopterum, Hahn, Orthopt. t. A. fig. 2 (1835) 8 . 



Hab. Central America, Bay of Honduras l 2 3 . — South America 1-s , Trinidad 

 (coll. L. Bruner). 



A common species in Venezuela and Colombia, and doubtless penetrates northward 

 along the Isthmus to Southern Costa Rica. 



3. Chromacris psittacus, Gerstaecker? 



Romalea psittacus, Gerst. Stett. ent. Zeit. xxxiv. pp. 185, 186 (1873) \ 

 Rhomalea psittacus, Pict. et Sauss. Cat. Acrid, i. p. 24 (1887) 2 . 



Hab. Nicaragua, Chon tales (Janson : 6 ) ; Costa Rica, Siquires (M. A. CarriJcer, 

 in coll. L. Bruner). — Colombia, Bogota 1 . 



The insect referred to this species agrees well with Gerstaecker's description, as well 

 as with a specimen from Bogota in my collection, only the coloured portion of the 

 wings is clear yellow, instead of vermilion. The Chontales male is discoloured by 

 immersion in alcohol, but it seems to belong here. 



4. Chromacris trogon, Gerstaecker. 



Romalea trogon, Gerst. Stett. ent. Zeit. xxxiv. p. 186 (1873) l . 

 Rhomalea trogon, Pict. et Sauss. Cat. Acrid, i. pp. 20, 23 (1887) 2 . 

 Chromacris trogon, Relm, Proc. Acad. Nat. Sci. Philad. 1905, p. 414 3 . 



Hab. British Honduras, Rio Sarstoon (Blancaneaux : $ ) ; Costa Rica l ; Panama, 

 Volcan de Chiriqui (Champion). 



The first reference is to an insect with banded legs and of the size of the varietal 

 form, which has the wings orange-coloured. 



Var. 



Rhomalea trogon, var., Pict. et Sauss. Cat. Acrid, i. p. 24 (1887) 4 . 



Hab. Costa IUca, Pozo Azul (M. A. CarriJcer). 



The specimens from Pozo Azul agree exactly with the dimensions as given by 

 Pictet and Saussure in their ' Catalogue d'Acridiens.' Whether or not they are 

 sufficiently distinct from typical trogon to deserve a name I am unable to state till 

 further material is available for examination. 



