NO. 1124. REVISION OF THE MELANOPLI SCVDDKIi. 167 



(male) or feebly transverse (female), no longer than the feebly and finely 

 ruguloso-punctate metazona. Prosternal spine moderately long and 

 slender, conico-cylindrical, blunt (male) or short and stout, appressed 

 conical, very blunt (female) ; interspace between mesosternal lobes much 

 less than twice as long as broad (male) or transverse (female), the 

 metasternal lobes attingent (male) or approximate (female). Teginiua 

 just reaching as far as the hind femora, rather slender, scarcely tapering, 

 distinctly and quadrately maculate in all but the apical fourth of the 

 discoidal area; wings pellucid, not very broad. Hind femora obliquely 

 marked alternately with blackish fuscous and brownish testaceous, 

 showing most distinctly (and sometimes only) on the upper half, the 

 lower half lighter, beneath red, in the female sometimes paler, the 

 genicular arcpiceous; hind tibiae bright red with a fuscous patellar 

 spot, the spines black except at their very base, ten to twelve (usually 

 eleven) in number in the outer series. Extremity of male abdomen 

 clavate, considerably upturned, the supraanal plate narrow, the sides 

 subparallel and broadly upturned over a little more than the basal 

 half, beyond triangular with rectangulate apex, the median sulcus very 

 deep and narrow between high and compressed walls, reaching nearly 

 to the tip, so that each side has between these walls and the elevated 

 margins of the plate a very pronounced sulcation; furcula consisting 

 of a pair of strongly depressed, slender, parallel lingers, equal and 

 scarcely parted in basal half, beyond tapering and bluntly pointed, 

 reaching the middle of the supraanal plate; cerei very broad, subequal 

 in basal half, then bent a little upward and feebly tapering but broadly 

 rounded apically, the whole obliquely vertical, straight and not incurved, 

 less than twice as long as broad, and shorter than the supraanal plate; 

 infracercal plates thickened apically and a little surpassing the supra- 

 anal plate, obliquely truncate: subgenital plate greatly prolonged aud 

 elevated apically, the apical margin entire, well rounded, in no way 

 truncate. 



Length of body, male, 20 mm., female, 22 mm.; antennae, male, 7.5 

 mm., female, 7 mm.; tegmina, male, 16 mm., female, 15 mm.; hind 

 femora, male, 11.5 mm., female, 13 mm. 



Four males, 5 females. Above timber, 11,000 to 13,000 feet, on Mount 

 Lincoln, Park County, Colorado, August 13. 



20. MELANOPLUS UTAHENSIS, new species. 



(Plate XT, fig. 10.) 

 Melanoplua utahensi* BHUXER!, MS. 



Yellowish brown. Head luteous, much clouded with light fusco- 

 olivaceous, the summit aud a broad band behind the eyes very dark 

 fusco-olivaceous, separated by a luteous stripe; vertex gently tumid, 

 scarcely elevated above the pronotum, the interspace between the eyes 

 broad, fully as broad as the first antenna! joint, the fastigium broadly 

 and shallowly sulcate except at base; frontal costa broad, feebly 



