238 ORTHOPTEHA. 



CHROMACRIS, Walker. 

 Chromacris, Walker, Cat. Dermapt. Salt. Brit. Mus. iv. p. 643 (1870) ; Thomas, Acrid. N. Am. 



p. 167 (1873). 

 Rhomalea, Burmeister, Handb. Ent. ii. p. 619 (1838) (in part.) ; Stal, Recens. Orthopt. i. pp. 32, 



51 (1873) ; Syst. Acrid, i. p. 17 (1878). 



The locusts constituting the genus Chromacris are quite similar in form, but differ 

 considerably one from the other in colour and somewhat in size. There are approxi- 

 mately ten or a dozen species known, four or five of which belong to Mexico or 

 Central America. 



Synopsis of the Species of Chromacris. 



A 1 . Antennae with the basal two-fifths flavous, the apical portion black. 1. colorata, Serville. 

 A 2 . Antennas entirely black. 



b 1 . Tegmina -with the veins of a purplish tinge. Hind femora 

 provided externally on the basal half with a longitudinal 

 testaceous or yellow fascia in addition to the transverse bands . 2. miles, Drury. 

 b 2 . Tegmina with the veins greenish. 

 c 1 . Femora banded with yellow. 



d l . Coloured portion of the wings yellow. Size larger ( <$ length 



25, ? 35 mm.) 3. psittacus, Gerst. ? 



d\ Coloured portion of the wings vermilion. Size smaller 



( £ length 20, ? 28 mm.) 4. trogon, Gerst. 



c\ Femora without yellow bands. Hind wings with the coloured 



portion orange trogon, var., Pict. et Sauss. 



l. Chromacris colorata, Serville. 



Acridium coloratum, Serv. Hist. Orthopt. p. 674 (1839) \ 



Rhomalea colorata, Stal, Recens. Orthopt. i. p. 51 (1873) 2 ; Pict. et Sauss. Cat. Acrid, i. pp. 19, 



22 (1887) 3 . 

 Chromacris colorata, Walk. Cat. Dermapt. Salt. Brit. Mus. iv. p. 644 (1870) 4 ; Rehn, Trans. Amer. 



Ent. Soc. xxix. p. 12 (1902) \ 

 Romalea pedes, Sauss. Rev. et Mag. Zool. xi. p. 392 (1869) 6 . 

 Rhomalea pedes, Thomas, Acrid. N. Am. p. 240 (1873) \ 



Bab. North America, South Carolina and Texas 1-4 . — Mexico, Tepic (coll. Calif. 

 Acad. Sciences), Cuernavaca, Morelos (0. W. Barrett), Orizaba, Vera Cruz (B. H. S. 

 & F. I). G.), Temax, N. Yucatan (Gaumer) ; Central America. 



Next to C. miles, this species is probably the most widely distributed member of the 

 genus, as it occurs from the Carolinas to Central America and from the Atlantic to 

 the Pacific. 



