BACTROPHORA.— -LEGITA. 251 



It is possible that the insect from which Westwood's drawing was made is still 

 extant, but there is scarcely any doubt but that the two insects here mentioned are 

 the sexes of the same species. The Costa Rican male was taken in June. 



[TRYBLIOPHORUS, Serville. 



Trybliophorus, Serville, Rev. Meth., Orthopt. p. 83 (1831); Hist. Orthopt. p. 631 (1839); Stal, 

 Syst. Acrid, i. p. 43 (1878); Giglio-Tos, Boll. Mus. Zool. Torino, xiii. no. 311, p. 43 (1898). 



Stegastris, Gerstaecker, Mittheil. naturwiss. Ver. Neu-Vorpomm. und Riigen, xx. p. 21 (1889); 

 Brunner, Rev. Syst. Orthopt. p. 136 (1893). 



While none of the representatives of the genus Trybliophorus are among the 

 material at hand, it is quite possible that at least one species will later be found to 

 reach Central America. 



1. Trybliophorus octomaculatus, Serville. 



Trybliophorus octomaculatus, Serv. Rev. Meth., Orthopt. p. 83 (1831) l ; Hist. Orthopt. p. 63& 



(1839) \ 



Hab. South Amekica, Cayenne 1 2 .] 



[JIVARUS, Giglio-Tos. 

 Jivm-us, Giglio-Tos, Boll. Mus. Zool. Torino, xiii. no. 311, p. 54 (1898). 



The genus Jlvarus also probably reaches our territory in at least a single species. 

 Although Ecuador seems to be the middle of the distribution of the few forms 

 belonging to it, the individuals are numerous and generally distributed both in low 

 and high altitudes. 



For a reference to these insects, see Giglio-Tos (loc. cit.).~\ 



LEGUA, Walker*. 



Legua, Walker, Cat. Dermapt. Salt. Brit. Mus. iii. p. 502 (1870). 



Prorachthes, Gerstaecker, Mittheil. naturwiss. Ver. Neu-Verpomm. und Riigen, xx. p. 38 (1889). 



Legua is a genus that contains at least two species of remarkable locusts of rather 

 large size and showy colours. They occur in Tropical America, where they seem 

 to be rare, though widely disseminated. Only a single species is found in Central 

 America, as shown by the material studied. Gerstaecker's type of Prorachthes insignis 

 was from the Amazons. 



l. Legua erenulata, Stoli. 



Gryllus (Locusta) crenulatus, Stoll, Repres. Saut. etc. t. 6 b. fig. 18 (1787) \ 

 Mesops crenulatus, Burm. Handb. Ent. ii. p. 610 (1839) 2 . 



* —ProracJithes of the synopsis of the genera, anted p. 212. 



2Kk2 



