292 PROCEEDINGS OF THE NATIONAL MUSEUM vol. iM 



locality as holotype, May 1948, Schiinke (9) (IISNM). 



Male: Differing from mcinus in the shape of the abdominal ex- 

 tremity. Last joint of the antennae black. 



Female: Cerci cylindrical; process of the paraprocts as long as the 

 cerci, enlarged, rounded at apex. Subgenital plate short, transverse, 

 with posterior margin straight on the sides, strongly convex, sub- 

 angulate in the middle. Ovipositor with curved, strongly acute valves, 

 the inferior ones with a strong basal tooth. 



Dimensions: Total length, cf 7.2 mm., 9 7.0 mm. 



Family Tridactylidae 



Genus Tridactylus Olivier, 1789 

 Tridactylus australis Bruner 



Tridactylus australis Bruner, Ann. Carnegie Mus., vol. 10, p. 35/', 1916. 



Specimens Examined: Peri&: Pucallpa, Rio Ucuyali, Oct. 8, 1947 

 (2cf d', 299), Mar. 2, 1948 (Icf), Schunke. 



References 



Bruner, Lawrence 



1916. South American crickets, Gryllotalpoidea and Achetoidea. Ann. 



Carnegie Mus., vol. 10, pp. 344-428. 

 Caudell, a. N, 



1918. On a collection of Orthoptera (exclusive of the Locustidae) made in 

 central Peru by N. Iconnicoff and C. Schunke. Ins. Insc. Menstr., 

 vol. 6, pp. 1-70. 

 Chopard, L. 



1912. Contribution a la faune des Orthoptferes de la Guyane frangaise. 

 Ann. Soc. Ent. France, vol. 81, pp. 401-432. 



1917. Etude des gryllides du Museo Civico di Storia Naturale di Genova. 



Ann. Soc. Ent. France, vol. 86, pp. 509-574. 

 1929. Descriptions de gryllides am6ricains nouveaux. Rev. Chil. Hist. 



Nat., vol. 33, pp. 522-531. 

 1933. Ergebnisse einer zoologischen Sammelreise nach Brasilien, insbe- 



sondere in das Amazonasgebiet, ausgefuhrt von Dr. H. Zerny. 



Ann. Naturh. Mus. Wien, vol. 46, pp. 243-253. 

 1937. Notes sur les gryllides et tridactylides du Deutsches Entomologisches 



Institut et descriptions d'especes nouvelles. Arb. Morph. Tax. 



Ent. Berlin-Dahlem, vol. 4, pp. 136-152. 



1948. Note sur les orthoptferes cavernicoles du Mexique. Ciencia, pp. 



67-70. 



1949. Ordre des orthoptferes, In Grass^, Trait6 de zoologie, vol. 9, pp. 



617-722. 

 1954. Orthoptera: Gryllidae et Tridactylidae. In Titschack, Beitrage zur 

 Fauna Perus, vol. 4, pp. 13-27, 6 figs. 

 Hebard, Morgan 



1924. Studies in the Dermaptera and Orthoptera of Ecuador. Proc. Acad. 

 Nat. Sci. Philadelphia, vol. 76, pp. 109-248. 



