wo. 1124. UEVISION OF THE MELANOPL1SCUDDER. 177 



25. MELANOPLUS DEFECTUS, new species. 

 (Plate XII, tig. 6.) 



Of medium or a little less than medium size, ferrugineo-flavous. 

 Head not prominent, flavous or ferruginous or a mixture of both, 

 marked above with a double median black line and with a piceous 

 postocular band of varying width ; vertex gently tumid, feebly elevated 

 above the pronotum, the interspace between the eyes alike in both 

 sexes, half as broad again as the first an tennal joint; fastigium steeply 

 declivent, deeply sulcate; frontal costa failing to reach the clypeus, 

 snbequal, as broad as or slightly broader than the interspace between 

 the eyes, sulcate at and below the ocellus, biseriately punctate through- 

 out; eyes moderately large, not very prominent, much longer than the 

 intraocular portion of the genae ; antenuaeflavo-luteous, about two-thirds 

 (male) or about three-fifths (female) as long as the hind femora. Pro- 

 uotum subequal on the prozona, expanding posteriorly on the metazona, 

 darker above than on the sides, the lateral lobes with a broad, broken, 

 and irregular, piceous, postocular baud confined to the prozona, the 

 disk nearly plane but feebly convex, passing into the vertical lobes by a 

 distinctly augulated but rounded shoulder nearly forming lateral carinae 

 on the metazona; median carina distinct on the nietazona, subobsolete 

 and equal on the prozona; front margin truncate, hind margin obtusan- 

 gulatts the angle well rounded ; prozona feebly transverse in both sexes, 

 scarcely or not longer than the densely punctate metazona. Proster- 

 nal spine rather short, feebly conical, very blunt, slightly appressed, 

 suberect, shorter in the female than in the male; interspace between 

 mesosternal lobes nearly twice as long as broad (male) or subquadrate 

 (female). Teginina slightly abbreviated, scarcely (female) or a little 

 (male) surpassing the middle of the hind femora, of moderate breadth, 

 tapering regularly but not greatly to a rather broadty rounded apex, 

 brownish hyaline, flecked with black at base and along middle of dis- 

 coidal area; wings similarly developed. Fore and middle femora of 

 male scarcely enlarged; hind femora varying from flavous to ferrugi- 

 nous, the outer face and especially its upper portion more or less and 

 rather uniformly infuscated between the iucisures, the inner face tri- 

 maculate above, the lower face feebly roseate, the genicular arc and a 

 transverse bar at base of lower genicular lobe black or fuscous; hind 

 tibiae pale red, the spines black beyond the base, ten to twelve in num- 

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

 recurved, the supraanal plate triangular with acutangulate apex and 

 the lateral margins elevated especially on the basal half, the median 

 sulcus tolerably deep between high and narrow but rounded walls; 

 furcula consisting of a pair of moderately distant, scarcely diverging, 

 tapering, slender spines, a little larger than the last dorsal segment; 

 cerci slightly less than twice as long as median breadth, the basal half 

 feebly tapering, the apical hall narrowed by the slight oblique excision, 

 Proc. X. M. vol. xx lii 



