398 Annals of the Carnegie Museum. 



Genus BuCRATES Burmeister. 

 Bucrales Burmeister, Handb. Ent., II, p. 708 (1838); Stal, Recens. Orth., II, p. 99 



(1874); Redtenbacher, Verh. Zool.-bot. Ges. Wien, XLI, pp. 330, 429 (1891); 



Karny, Revis. Conocephal., p. 4 (1907)- 



The genus Bucrates is a small one, and contains insects which are 

 confined to tropical America. Only two species are recognized so far. 



162. Bucrates capitatus (De Geer). 



Locusta capitata DE Geer, Mem. Ins., Ill, p. 455, PI. 40, fig. i (i773)- 



Bucrates capitatus Burmeister, Handb. Ent., II, p. 709 (1838); Redtenbacher, 



Mon. Conocephal., p. 115, pi. 3, fig. 48 a, b (1891); Griffini, Boll. Mus. Zool. 



Anat. Comp. Torino, XI, no. 232, p. 26 (1896); Karny, Revis. Conocephal., 



p. 115 (1907)- 

 Conocephalus (?) lalifrons Walker, Cat. Derm. Salt. B. M., II, p. 310 (1869). 



Habitat. — Specimens are at hand from Santarem, Para, Munez 

 Freire (Cachosiro) Espirito Santo, and Rio de Janeiro, Brazil. 



Family DECTICID.E. 

 Up to the time when Caudell issued his paper on the group in the 

 Genera Insectonim no representatives of the family Decticidce seemed 

 to have been recorded from South American localities. It is almost 

 incredible, however, that these insects should be entirely absent from 

 the whole of that large and varied continent, since they are known to 

 occur in all other portions of the Earth which are at all extensive and 

 possess more or less arid and somewhat open tracts. Forms should be 

 met with along the table-lands of Ecuador, Peru, Chili, and Argen- 

 tina, where these conditions prevail to a large extent. The members 

 of the family can be located by the synopsis of families printed on a 

 preceding page of this present paper should any be found. 



Family GRYLLACRID.F:. 



The family known as Gryllacridae is a rather extensive one if we 

 include all the forms found in the Orient as well as the Occident. 

 But when we limit ourselves to the Americas the genera are few. Of 

 those which are known to contain South American species there are 

 but five. These insects are also nocturnal in their movements and 

 during the daytime usually conceal themselves in various nooks and 

 crannies among rankly growing vegetation or among fallen leaves and 

 other rubbish on the ground. The five genera referred to here may 

 be separated as follows: 



