Bruner: South American Crickets. 353 



bb. Tegmina less than one-halt the length of the abdomen, the hind wings more 



or less aborted. 



c. Wings not at all or barely passing the tegmina, the abdomen marked 



above with some regular pale spots. [Colombia], .-parvipennis Serville. 



cc. Wings abortive, not more than one-half the length of the tegmina. 



[Pernambuco, Brazil] abbreviatus Scudder. 



4. Scapteriscus oxydactyla (Perty). 



Gryllotalpa oxydactyla Perty, Del. Anim. Art. (1832), p. 118, pi. 23, fig. 9; Bur- 

 MEISTER Handb. Ent., II (1838), p. 74; Serville, Ins. Orth. (1839), p. 307. 



Scapteriscus oxydaclylus Scudder, Mem. Peabody Acad. Sci., I (1869), 7, pi. i, 

 figs. 2, 21. 



Scapteriscus oxydactyla Saussure, Miss. Mex., Orth. (1874), p. 337. 



Habitat. — One female and one male specimen are before me. They 

 come from Santa Cruz de la Sierra, Province del Sara, Bolivia, where 

 they w^ere taken in 1909 by J. Steinbach. There is also a female bearing 

 the label "Cacequy, Rio Grande do Sul, Brazil, Feb. 2, 1909 (J. D. 

 Haseman)." The writer also has spec'iv.cns which were collected 

 as far south as the city of Rosario, Argentina. 



5. Scapteriscus borellii Giglio-Tos. 



Scapteriscus borellii Giglio-Tos, Boll. Mus. Torino, IX (1894), p. 45, figs. 12, 15; 

 Kirby, Syn. Cat. Orth., II (1906), p. i. 



Habitat. — While there are no specimens contained in the collection 

 now being reported upon, there are a number of specimens in the 

 writer's possession. These were taken at various localities in Argen- 

 tina, as well as at San Bernardino and Asuncion, Paraguay. 



6. Scapteriscus mexicanus (Burmeister). 



Gryllotalpa mexicana Burmeister, Handb. Ent. II (1838), p. 740. 



Scapteriscus mexicanus Scudder, Mem. Peabody Acad., I (1864), p. 9, pi. i, figs. 6, 



18; Saussure, Miss. Mex., Orth. (1874), p. 337; Kirby, Syn. Cat. Orth., II 



(1906), p. I. 



Habitat. — Only a single male specimen of this species is at hand. 

 It comes from San Jose, Costa Rica, where it was taken by P. Biolley. 

 As shown by the synoptical key it and the preceding species are 

 quite closely related. 



7. Scapteriscus didactylus (Latreille). 

 Gryllotalpa didactyla Latreille, Gen. Crust. Ins., XII (1804), p. 122; Burmeister, 



Handb. Ent., II (1838), p. 740. 

 Scapteriscus didactylus Scudder, Mem. Peabody Acad. Sci., I (1869), p. 10, pi. i, 



figs. I, 14; Saussure, Miss. Mex., Orth. (1874), p. 338, pi. 8, fig. 20. 

 Gryllotalpa tetradactyla Perty, Del. Anim. Art. (1832), p. 118, pi. 23, fig. 8. 



Habitat. — There are several specimens at hand which are referred 



