Bruner: South American Acridoidea. 53 



Habitat.— A large series including both sexes, is al hand from 

 Chapada near Cuyaba, Matto Grosso, Brazil. They were taken 

 during the months of May, June, and July (II. II. Smith). 



This species comes closest to P. gracilis (Bruner) from Sao Paulo. 



73. Diedronotus lineatus (Bruner). 



Tropinotus lineattis Bri ner, Proc. U.S. Nat. Mus.. XXX, pp. 646, 648 (1906). 

 Diedronotus lineatus Kirby, Syn. Cat. Orthopt., [II, p. 361 (1910). 



Habitat. Chapada. near Cuyaba, Matto Grosso, Brazil, a single 

 male specimen collected in June (II. II. Smith). 



This insect also occurs at Sapucay, Paraguay, where it was collected 

 by W. T. Foster. (Collections U. S. Xat. Museum, I.. Bruner, and 



Philadelphia Acid. Sciences.) 



Genus Coryacris Rehn. 



ris Rehn, Proc. U. S. Xat. Mus., XXXVI, p. 111 (1909). 



Very closely related to Elceochlora Stal, and composed of insects 

 with fully developed tegmina and wings in both sexes. The species, 

 so far as known, are confined to southern Brazil, Paraguay, and Argen- 

 tina along the Rio Parana. The type of the genus is the following 

 specie-. 



74. Coryacris angustipennis (Bruner). 



Elaochlora angustipennis BRUNER, 2d Rept. Locust Comm. B. Aires, p. 58 (1900). 

 Coryacris diversipes Rehn, Proc. I*. S. Xat. Mus.. XXXVI, pp. 111-114, figs. 1, 2 

 (1909). 



Habitat. — Specimens of both sexes were collected during March at 

 Corumba, Brazil, by H. H. Smith. 



75. Coryacris sp. 



There is before me, as I write, a single female specimen of this 

 genus which bears the label " Pedras de Amolar, near mouth o\ Sao 

 Lorenzo Rio, P." While colored similarly to C. angustipennis, referred 

 to above, this individual is nearly or quite twice as large. The 

 measurements follow: 



Length of body, 9 , <H mm., of pronotum, 14 mm., of tegmina, 57 

 mm., of hind femora, 36.5 mm., of antenna', 26 mm. 



Female specimens of C. angustipennis before me vary from 48 to 

 55 mm. in length. 



This large individual has the apical two-fifths of the tegmina rather 

 regularly and plainly conspersed with fuscous dots. It bears the 



