160 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL xx. 



McNeill found it in Illinois only on high sandy ground where the 

 sole vegetation was Cenchrus, and the grasshoppers were -'colored so 

 nearly like the yellow sand that they were difficult to see when only 

 two or three feet away." 



A single specimen from Colorado which apparently belongs here, but 

 is too much injured to determine with certainty, has the hind tibiae 

 pale red. 



15. MELANOPLUS ELONGATUS, new cpecies. 

 (Plate XI, fig. 5.) 



Long and slender bodied, warm brownish fuscous, sometimes more or 

 less ferruginous, with feeble markings. Head slightly prominent, dull 

 plumbeo-flavous, much obscured with fuscous, especially above and in 

 a band behind the eyes; vertex gently tumid, the interspace between 

 the eyes rather narrow, narrower than (male) or rather broad, broader 

 than (female) the frontal costa; fasti gin m descending with tolerable 

 rapidity, broadly and deeply (male) or shallowly (female) sulcate 

 throughout; frontal costa moderately broad, equal, deeply sulcate 

 excepting above, where it is seriately punctate next the margins; eyes 

 tolerably large, not very prominent, rather elongate; antennae slightly 

 shorter than (male) or about two-thirds as long as (female) the hind 

 femora, fulvo-luteous, infuscated apically. Prouotum gently enlarging 

 posteriorly, the front margin subtruncate, the hind margin somewhat 

 obtusely angulate, the angle well rounded, the disk nearly plane, pass- 

 ing by a rounded angle into the inferiorly vertical lateral lobes, the 

 median carina distinct though slight on the metazona, feebly percepti- 

 ble on the prozona; lateral lobes marked above more or less obscurely 

 with a broad fuscous stripe crossing the prozona, immediately below it 

 sometimes enlivened with paler flecks; prozona feebly longitudinal 

 (male) or feebly transverse (female), but little longer than the closely 

 and finely punctate metazona. Prosternal spine long, erect, conico- 

 cylindrical, blunt tipped ; interspace between inesosternal lobes several 

 times longer than broad, especially in the male, the metasternal lobes 

 attingent in part (male) or approximate (female). Tegmina very long 

 and slender, scarcely tapering, well rounded apically, feebly and very 

 minutely flecked, extending far beyond the femoral tips; wings ample, 

 pellucid, the veins and cross- veins blackish fuscous. Femora ferrugineo- 

 testaceous, the hind pair more or less and irregularly clouded with fus- 

 cous, sometimes, making a feeble, indistinct bifasciate barring, the 

 genicular arc blackish testaceous ; hind tibiae feebly incurved, glaucous, 

 apically lutescent, pallid along the line of the spines, which are pallid 

 at base, black apically, and nine to eleven, usually ten, in number in 

 the outer series. Extremity of male abdomen a little clavate, upturned, 

 the supraaual plate subclypeate, with well rounded but feebly sinuate 

 lateral margins, which are broadly and feebly raised, and hardly the 

 least sign of a median sulcus ; furcula consisting of a pair of large, very 

 broad, much depressed, parallel plates, attingent at base, tapering 

 and bluntly rounded at tip, reaching-the middle of the supraanal plate, 



