NO.H24. REVISION OF THE MELANOPLISCFDDEH. 259 



two from Florida only; another only from Oregon and Washington; a 

 fifth from Kentucky; a sixth from North Carolina; a seventh from 

 Indiana, Texas, and, perhaps, Carolina; while the eighth occurs across 

 the continent from Newfoundland and New Jersey in the east to Wash- 

 ington in the west, and from the Saskatchewan to Colorado. 



The most aberrant member of the series is M. lorealis. None of 

 them are likely to be confounded. 



71. MELANOPLUS ATTENUATUS, new species. 

 (Plate XVII, fig. 6.) 



Of medium size and very slender, light ferrugineo-fuscous. Head 

 rather prominent, flavo-testaceous, fuscous above, with a broad piceous 

 postocular band; vertex moderately tumid, a little elevated above the 

 pronotum, the interspace between the eyes about as broad as the first 

 antennal joint; fastigium steeply declivent, distinctly but not deeply 

 sulcate; frontal costa percurrent, subequal, faintly narrower above, 

 slightly broajcler than the interspace between the eyes, faintly depressed 

 at the ocellus, punctate throughout, biseriately above; eyes large, very 

 prominent, nearly twice as long as the infraocular portion of the genae; 

 antennae fusco-testaceous, fully four-fifths as long as the hind femora. 

 Pronoturu subequal, faintly expanding on the metazona, ferrugineo-tes- 

 taceous more or less infuscated above, flavous or fusco-flavous on the 

 sides, with a broad, piceous, postocular band confined to the pro r /oua, 

 the disk gently convex, passing by a rather broadly rounded shoulder 

 into the anteriorly tumid vertical lateral lobes; median cariua dis- 

 tinct, percurrent, equal ; front margin feebly convex, hind margin sub- 

 truncate; prozoua very longitudinal, nearly twice as long as the sharply 

 and densely punctate metazona. Prosternal spine rather long, feebly 

 conical, very blunt, erect; interspace between mesosterual lobes some- 

 what longer than broad. Tegmina abbreviate, a little shorter than the 

 pronotum. attingentor subattingent, elliptical, broadly rounded apically, 

 a little less than twice as long as broad, fusco-testaceous. Fore and 

 middle femora somewhat tumid in the male; hind femora slender, light 

 ferruginous, dull flavous beneath, the genicular arc and a basal bar on 

 the lower genicular lobes blackish fuscous; hind tibiae very pale green 

 apically, pale ferrugineo-flavous basally, the spines black nearly to their 

 base, twelve to fourteen in number in the outer series. Extremity of 

 male abdomen clavate, considerably recurved, the supraanal plate long 

 triangular, a little and narrowly compressed just beyond the base, the 

 tip acutangulate but well rounded, the lateral margins somewhat ele- 

 vated, the median sulcus lying between sharp but not high walls in the 

 basal two-thirds of the plate, beyond which are a pair of more distant, 

 short, subparallel, blunt, longitudinal ridges; furcula consisting of a 

 pair of very slender, tapering and acuminate, divergent fingers, crossing 

 scarcely the basal fourth of the supraaual plate; cerci very slender and 



