218 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL.XX. 



supraanal plate; cerci moderately stout, nearly equal in width through- 

 out-, the basal half exteriorly tumid, the apical half roundly bent 

 inward and exteriorly broadly sulcate, the apex well rounded and 

 nearly reaching the tip of the supraanal plate; subgeriital plate small, 

 feebly subpyramidal, the margin as seen from above acutely bent 

 apically and feebly tuberculate by its slight apical elevation. 



Length of body, male, 16 mm., female, 21 mm. ; antennae, male, 7.5 

 mto., female, 5.75 mm. ; tegmina, male and female, 3.5 mm. ; hind femora, 

 male, 9 mm., female, 10 mm. 



Four males, 10 females. Salmon City, Lemhi County, Idaho, August 

 (U.S.N.M. Biley collection; L. Bruner; S. H. Scudder). 



44. MELANOPLUS MANCUS. 

 (Plate XIV, fig. 9.) 



Pezoieitix manca SMITH!, Proc. Portl. Soc. Nat. Hist., I (1868), p. 149. THOMAS, 



Rep. U. S. Geol. Surv. Terr., V (1873), p. 149. SCUDDER!, Hitchc., Rep. Geol. 



N. H., I (1874), p. 374. GIRARD, Trait6 d'Eut., II (1879), p. 246. BRUNER, Rep. 



U. S. Ent. Coram., Ill (1883), p. 59. FERNALD, Orth. N. E. (1888), pp. 29, 30; 



Ann. Rep. Mass. Agric. Coll., XXV (1888), pp. 113, 114. McNKiLL, Psyche, 



VI (1891), p. 77. MORSE, ibid., VII (1894), p. 106. 

 Poclisma manca WALKER, Cat. Derm. Salt. Brit. Mus., V (1871), p. 72. 



Of rather small size, blackish fuscous above, the abdomen and legs 

 more or less ferruginous, below light castaneous. Head not prominent, 

 the lace and genae testaceous, feebly olivaceous, and sometimes faintly 

 clouded with fuscous, the summit blackish fuscous with a distinct and 

 broad piceous postocular baud; vertex gently convex, scarcely elevated 

 above the pronotum, the interspace between the eyes half as broad 

 again (male) or twice as broad (female) as the first antennal joint; fas- 

 tigium rather steeply declivent, rather (male) or very (female) shallowly 

 sulcate; frontal costa subequal, a little contracted narrowly at summit, 

 especially in the male, slightly narrower than the interspace between 

 the eyes, fading just before the clypeus, feebly sulcate at and below 

 the ocellus, punctate throughout; eyes of moderate size, rather promi- 

 nent, particularly in the male, distinctly longer than the iufraocular 

 portion of the genae; antennae dark castaneous, apically infuscated, 

 less than three fourths (male) or about two-thirds (female) as long as 

 the hind femora. Pronotum rather short, feebly enlarging posteriorly 

 but more rapidly on the inetazona, the upper portion of the lateral 

 lobes occupied by a broad piceous postocular band, broadening pos- 

 teriorly and generally weaker on, but never absent from, the inetazona; 

 disk broadly convex, passing by a broadly rounded shoulder nowhere 

 forming semblance of lateral carinae into the inferiorly vertical lateral 

 lobes; median carina distinct on the metazona, blunt, equal, and 

 almost subobsolete on the prozona; front margin truncate or subtrun- 

 cate, hind margin very broadly convex, occasionally subangulate, the 

 angle exceedingly obtuse; prozona slightly longitudinal (male) or 

 quadrate (female), about a fourth (male) or a fifth (female) as long 



