NO. 1 124. RE VISION OF THE MELA NOP L ISC UDDER. 225 



(female). Tegmina short, sublanceolate, lateral, shorter than the pro- 

 noturn, the tip rounded, subangulate, brownish fuscous, blackish at 

 the base of the discoidal area. Hind femora pallid testaceous, very 

 transversely and narrowly bifasciate with blackish fuscous, the inferior 

 face and lower half of interior face roseate and unbroken, the genieu- 

 lation black; hind tibiae red, the spines black almost or quite to the 

 base, nine to ten in number in the outer series. Abdomen sordid pale 

 testaceous, heavily overlaid or blotched with blackish fuscous, the 

 extremity in the male feebly clavate, a little upturned, the supraanal 

 plate triangular, with convex sides, rectangular apex, the mesial region 

 broadly elevated in more than the basal half and with a median closed 

 sulcus of considerable depth, the sides of the plate also basally elevated, 

 so that two lateral valleys are formed with synclinal sides; furcula 

 consisting of a pair of slender, a little divergent, tapering, acuminate 

 spines, crossing the basal third of the supraanal plate; cerci rather 

 small, rapidly tapering in the basal half by the excision of the upper 

 margin (much more rapidly than shown in the figure), beyond subequal 

 and arcuate, being a little upturned, narrowed and well rounded 

 apically, not at all incurved, as long as the supraanal plate; subgenital 

 plate small, much longer than broad, not at all produced apically and 

 elevated only at extreme tip and slightly, the apical margin well 

 rounded, entire. 



Length of body, male, 17.5 mm., female, 22 mm.; antennae, male, 

 7.5 mm., female, 6.5 mm.; tegmina, male and female, 3.25 mm.; hind 

 femora, male, 9.1 mm., female, 11.75 mm. 



One male, 1 female. Soldier, Logan County, Idaho (L. Bruner). 



49. MELANOPLUS NIGRESCENS. 



(Plate XV, fig. 4.) 



? Pezotettix zimmermanni SAUSSURE, Rev. Mag. Zool., 1861 (1861), p. 159; Ortli. 



Nov. Amer., II (1861), p. 9. THOMAS, Rep. U. S. Geol. Surv. Terr., V (1873), 



p. 150. BRUNER, Rep. U. S. Ent. Comrn., Ill (1883), p. 59. 

 ? Podlsma zimmermanni WALKER, Cat. Derm. Salt. Brit. Mas., IV (1870), p. 718. 

 Caloptenus nigrescens SCUDDER!, Proc. Bost. Soc. Nat. Hist., XIX (1877), p. 27; 



Ent. Notes, VI (1878), p. 5; Cent. Orth. (1879), p. 44. 

 Pezotettix nicjrescens SCUDDER!, Can. Ent., XII (1880), p. 75. 

 ' Melanoplus nigrescens SCUDDER, Cent. Orth. (1879), p. 84. BRUNER, Rep. U. S. 



Eiit. Coram., Ill (1883), p. 61. 



Dull wood-brown, the sides and tegmina marked with black. Anten- 

 nae reddish brown, a little infuscated at the tip; front of head more or 

 less infuscated, the upper border of the eye margined by a pale yellow- 

 ish stripe, followed inferiorly behind the eye by a more or less distinct, 

 broad, blackish belt, which extends upon the pronotum, where it infus- 

 cates the upper third of the lateral lobes, especially anteriorly, and 

 deepens to black next the lateral carinae; metathoracic epimera yellow 

 ish or pale yellowish brown, edged on either side with black. Aral 

 Proc. X. M. vol. xx 15 



