Vol. xxii] ENTOMOLOGICAL NEWS 247 



Notes on Paraguayan Orthoptera^ with Descriptions 

 of a new Genus and Four new Species. 



By James A. G. Rehn, Academy of Natural Sciences, 

 Philadelphia, Pa. 

 The following notes and descriptions are based on a small 

 but very interesting collection of Orthoptera submitted to me 

 for study by the well-known naturalists, A. de Winkelried Ber- 

 toni and Prof. C. Schrottky, of Puerto Bertoni, Paraguay, 

 from which locality the greater portion of the material was se- 

 cured. Prof. Bruner has already reported* on a collection of 

 Acridoidea from this locality. 



FORFICULIDAE. 

 Pyragra brasiliensis (Gray). 



Puerto Bertoni. — One female (Schrottky). 

 Pyragra paraguayensis Borelli. 



Paraguay. — One male (Schrottky), This specimen is sHght- 

 ly smaller than the original measurements of the species, but 

 otherwise it is typical. 



Demogorgon batesi Kirby. 

 Puerto Bertoni. — One male (Schrottky). 



BLATTIDAE. 

 Pseudomops sp. 



Puerto Bertoni. — November. One broken specimen. (Ber- 

 toni, No. 715). 

 Ischnoptera bilunata Saussure. 



Asuncion. — 1900. Two males. This species was described 

 from Chiquitos, Bolivia. 



Nyctibora sericea Burmeister. 



Puerto Bertoni. — October, 1904. (Bertoni, No. 413). 

 Panchlora thalassina Saussure and Zehntner. 



Puerto Bertoni. — December, 1909. Two females. (Bertoni, 

 No. 401 ) . 



*Ent News, XXI, pp. 301-307. 



