Bruner: Tropical American Tettigonoidea. 315 



29. Gymnocera infuscata (Brunner). 



Scaphura infuscata Brunner, Mon. Phaneropt., pp. 257, 262 (1878). 

 Gymnocera infuscata Kirby, Syn. Cat. Orth., II, p. 455 (1906). 



Habitat. — Specimens are before me coming from Corumbd, Brazil, 

 Puerto Suarez, Bolivia, and Rio Bermejo, Province of Salta, Argentina. 



These latter specimens are much smaller than the typical form, 

 and have much narrower tegmina than Brunner mentions in his 

 description. Otherwise the description fits fairly well. 



Genus Microcentrum Scudder. 



Microcentrum Scudder, Bost. Journ. Nat. Hist., VII, p. 446 (1862) {nee Stal); 



Kirby, Syn. Cat. Orth., II, p. 455 (1906). 

 Stilpnochlora Stal, CEfv. Vet.-Akad. Forh. XXX (4), p. 40 (1873); lb., Recens. 



Orth., II, p. 19 (1874); Brunner, Mon. Phaneropt. pp. 32, 358 (1878); lb., 



Addit. Mon. Phaneropt., p. 18 (1891); Saussure & Pictet, Biol. Cent. Amer., 



Orth., II. p. 367 (1898). 



As indicated by the aboVe synonomy there seems to have been 

 some confusion concerning the large insects which comprise the present 

 genus. At least seven species are recognized by recent writers. 



30. Microcentrum marginellum (Serville). 



Phylloplera marginella Serville, Ins. Orth., p. 405 (1839). 



Microcentrum marginellum Kirby, Syn. Cat. Orth., II, p. 455 (1906). For a rather 

 full synonymy of this insect see Kirby, I. c. 



Hahitat. — This insect is credited to Central and South America as 

 well as to several of the West Indian islands. Specimens in the present 

 collection come from Rio de Janeiro, Brazil, and the Isle of Pines, 

 West Indies. 



31. Microcentrum incisum (Brunner). 



Siilpnochlora incisa Brunner, Mon. Phaneropt., pp. 359, 361 (1878); Saussure & 



Pictet, Biol. Cent.-Amer., Orth., I, pp. 368, 369 (1898). 

 Microcentrum incisum Kirby, Syn. Cat. Orth., II, p. 456 (1906). 



Hahitat. — Although this insect is credited to Peru a male specimen 

 in the collection now under consideration comes from the Province 

 del Sara, Bolivia, where it was collected by J. Steinbach. 



Genus Peucestes Stal. 

 Peucestes Stal, Recens. Orth., II, p. 20 (1874); Brunner, Mon. Phaneropt., pp. 32 

 363 (1878); lb., Addit. Mon. Phaneropt., pp. 18, 181 (1891); Saussure & 

 Pictet, Biol. Cent.-Amer., Orth., I, p. 370 (1898). 



