1906.] NATURAL SCIENCES OF PHILADELPHIA. 49 



Psoloessa maculipennis Scudder. 



1875. Psoloessa maculipeiinis Scudder, Proc. Boston Soc. Nat. Hist., XVII, 

 p. 513. 



San Luis Potosi, Mexico. August 5, 1903. 1 9 . (M. E. Hoag. 

 A. N. S. P.) 



This species has l^een recorded from Texas, New i\Iexico, Arizona 

 and Cahfornia. 

 Psoloessa buddiana Brmier. 



1889. Psoloessa Buddiana Bruner, Proc. U. S. Nat. Mus., XII, p. 61, t. I, 

 fig. G. [Carrizo Springs, Southwest Texas.] 



Zapotlan, Jahsco, Mexico, July 7, 1902. d", 9 . (C. H. T. Town- 

 send, A. N. S. P.) 



These specimens are referred here with some Httle doubt. The 

 species has been recorded from Montelovez, Coahuila. 



STIRAPLEURA Scudder.^s 



1876. Stiraplcura Scudder, Ann. Rep. Chief of U. S. Engineers, 1876, pt. 

 3, p. 510. 



Type. — Stirapleura decussata Scudder. 



Specimens of all the South American forms of this genus have been 



examined and the species are here listed to show their relationship. 



Stirapleura variabilis Bruner. 



Stirapleura signatipennis (Blanchard). 



1851. (Edipoda signatipennis Blanchard, in Gav, Hist. Fis. y Polit. de Chile, 

 Zool., VI, p. 79. [Coquimbo, Chili.] 



Penco, Chili. December, 1903. 7 9 9. (C. S. Reed, A. N. S. P.) 

 Concepcion, Chili. 19. (C. S. Reed, A. N. S. P.) 



These specimens fully agree with Blanchard's original description. 

 This is the largest species of the genus, exceeding even the North 

 American S. decussata. An average 9 measures as follows: 



Length of body, 25 mm. 



Length of pronotum, 4.8 " 



Length of tegmen, 19 " 



Length of caudal femur, 16.5 " 



Stirapleura bruneri n. n. 



1900. Sltirapleura] signatipennis Bruner (not QiJdipoda signatipennis 

 Blanchard), Gen. Sp. Locusts Argent., p. 34. [Argentina from the 

 Pampa Central and extending into Uruguay to the eastward.] 



This species is quite distinct from signatipennis Blanchard, as six 



^* Saussure's Stenobothrus chilensis {Revue et Magasin de Zoologie, 2e ser., 

 XIII, p. 319, 1861) is no doubt a member of this genus, and possibly the male 

 of signatipennis, the female being the only sex known to the author. The size 

 given by him (lengtli with elytra 15 mm.) is much too large for the male of 

 humilis. 



