Bruner: Tropical American Tettigonoidea. 317 



of these tubercles crenulate, touching the fastigium of the vertex, 

 which also terminates in two smaller tubercles, sulcate. Pronotum 

 widely, shallowly, and roundly emarginate in front, without a median 

 denticle; carinae multidentate, somewhat arcuate. Anterior femora 

 below on the front margin three-spined, middle four-spined, the 

 hind pair ten- to twelvc-spined externally, eight-spined internally; 

 intermediate tibiye above externally four-spined, behind or internally 

 five-spined. 



Length of body, cf, 38 mm., 9, 40 mm.; of pronotum, cf, 9-75 

 mm., 9, 10.5 mm.; width of pronotum, cf, 8 mm., 9, 8.85 mm.; 

 length of tegmina, cf , 59 mm., 9 , 67 mm.; width of tegmina, cf, 19 

 mm., 9 , 21 mm.; length of hind femora, c^, 31 mm., 9 , 35 mm.; of 

 ovipositor, 5.5 mm. 



Habitat. — There is a large series of this insect in the collection. 

 They come from Chapada and Corumba, Brazil, where they were 

 taken during June, July, and August by H. H. Smith. The types 

 belong to the Carnegie Museum. 



36. Posidippus fastigiosus Brunner. 



Posidippus fastigiosus Brunner, Mon. Phaneropt., pp. 368, 370 (1878); lb., 

 Addit. Mon. Phaneropt., p. 184 (1891); Kirby, Syn. Cat. Orth., II, p. 459 

 (1906). 

 Habitat. — A single male coming from the Province del Sara, Bolivia, 



belongs here. It was taken by J. Steinbach. 



Genus Steirodonopsis Scudder. 

 Steirodonopsis Scudder, Proc. Best. Soc. Nat. Hist., XVII, p. 259 (1875); Kirby, 



Syn. Cat. Orth. Brit. Mus., II, p. 458 (1906). 



The present genus was established for an insect coming from the 

 Peruvian Maranon. A second species is now added, based also on a 

 single male specimen from Bolivia. 



Synopsis of the Species of Steirodonopsis. 

 A. Size larger (male, with tegmina 46 mm. long). Occiput and pronotum with 



a median longitudinal pink or reddish line bilobala Scudder. 



AA. Size smaller (male, with the tegmina 40 mm. long). Occiput and pronotum 

 without a differently colored median longitudinal line scudderi sp. nov. 



37. Steirodonopsis scudderi sp. nov. 



In many respects like S. bilobata, but decidedly smaller. 



Head short and rather broad, the occiput smooth and bulging 



