LIST OF PARA G VA YAN LOCUSTS— BR UNER. 66 5 



BUCEPHALACRIS BORELLII Giglio-Tos. 



Bucephalacrishorfllil (tiglio-Tos, Boll. Mas. Zool. Anat. Torino, XII, 1897, No. 



302, p. 31. 

 anfllus hucephalus Giglio-Tos, Boll. Mns. Zool. Anat. Torino, IX, 1894, No. 184, 

 p. 31, not Marschall. 

 Ualntid. — Credited to the Province of San Pedro, Paraguay, where 

 it was taken b}" Doctor l^orelli (Gig'lio-Tos). 



BUCEPHALACRIS PARAGUAYENSIS new species. 



General form cylindrical, not e.specially robust, the color dull gray- 

 ish brown, with the lower sulcus and inner face of hind fcMuora deep 

 blood-red; apex of tegniina broadly rounded, a little shorter than both 

 the hind femora and the abdomen: prosternal spine large, short, blunt. 



Head a little broader than the front edge of the pronotum, nearly as 

 ])road as high; face and cheeks rather evenly and profusely punctate, 

 the occiput smooth; e3'es large, prominent, strongly divergent, much 

 longer than the cheeks below them; vertex between the eyes rather 

 narrow, about three-hfths as broad as the frontal costa between the 

 base of antenna?; fastigium slightly depressed, a little broader than 

 long, widely truncate in front and separated from the facial costa by 

 a strong transverse carina, just back of which are two lateral depres- 

 sions separated by a short posteriorly direct(Kl carina or ridge; frontal 

 costa evenly and coarsely punctate, rather broad and prominent above, 

 gently narrowing below, not quite reaching the cl\"peus, broadly and 

 shallowly sulcate, with the bounding walls blunt and smooth, which, 

 about midway between the antenna? and clypeus, emits a lateral impunc- 

 tate ridge, which extends a little more than half way to the lateral 

 facial carina?; antennae tiliform; pronotum subcylindrical, the surface 

 rather evenl}- and profusely punctate, without lateral carime; median 

 carina percurrent, faint, most apparent on hind lobe; anterior edge 

 somewhat advanced upon the occiput, but with the center roundly 

 emarginate, hind border broadly rounded; transverse impressed lines 

 well marked, continuous, the last much back of the middle; pleura 

 and sternum of meso- and metathorax punctate, the mesosternal lobes 

 separated by a space a little longer than broad, the inner edge of the 

 lobes broadly rounded posteriori}^; tegminaof medium and equal width 

 throughout, not quite as long as the abdomen, the texture semimem- 

 Ijranous and with comparatively few veins, the apex rounded; wings 

 as long as tegmina. 



Anterior and middle legs short, their femora but little enlarged and 

 slightly arcuate. Hind femora moderately robust on basal two- 

 thirds, somewhat compressed, the pinniB quite regular in size, the 

 carinjB low and smooth; tibia? slender, hairy, with T spines in outer 

 row; tarsi long and slender, the hrstand second joints equal in length. 

 Prosternal spine coarse, .short, the apex broadly rounded. Valves of 



