NO. 1124. REVISION OF THE MEL^NOPLISC UDDER. 291 



lobes rather approximate (male) or moderately distant (female). Teg- 

 mina failing a little (male) or considerably (female) of reaching the tips 

 of the hind femora, moderately broad, distinctly tapering, strongly 

 rounded at apex, fusco-ferruginous, immaculate; wings not broad, 

 impure hyaline with reddish fuscous veins. Fore and middle femora 

 considerably tumid in the male; hind femora varying from dark testa- 

 ceous to dark plumbeo-fuscous, the inner half of the upper face dull 

 flavous, with the base, geniculation, and two large intermediate spots 

 black, the under surface deep red; hind tibiae deep red, often much 

 infuscated but then with a narrow, red, subbasal annulus, the spines 

 black throughout, eleven to twelve, usually eleven, in number in the 

 outer series. Extremity of male abdomen strongly clavate, somewhat 

 recurved, the supraanal plate long clypeate, with sides strongly com- 

 pressed in the middle, the lateral margins strongly elevated, the apex 

 acutangulate, the median sulcus very narrow and deep, being a mere 

 slit between moderately high but rounded walls, apically obsolete; 

 furcula consisting of a pair of basally attingent, basal ly expanded, and 

 depressed fingers, which beyond are straight, parallel, acuminate 

 thorns, more than a third as long as the supraanal plate and overlying 

 its ridges; cerci coarse and heavy subfalciforni laminae, their plane 

 obliquely vertical and nearly straight, considerably shorter than the 

 supraanal plate, tapering considerably on the basal half, feebly on the 

 apical half, which is considerably more than half as broad as the 

 extreme base, obliquely truncate at apex, the upper angle very blunt; 

 subgenital plate narrowing from base to apex, somewhat longer than 

 broad, the lateral margins gently sinuate, the apical margin elevated 

 by slight tubercles at its somewhat angular junction with the lateral 

 margins, so that it is broadly notched, as viewed posteriorly. 



Length of body, male, 17.5 mm., female, 23 mm.; antennae, male, 

 8.25 mm., female, 6.75 mm. ; tegmina, male, 12.25 mm., female, 11.5 mm. ; 

 hind femora, male, 10.5 mm female, 11.5 mm. 



Two males, 2 females. Above timber line on Sierra Blanca, Colorado, 

 12,000 to 13,000 feet (S. H. Scudder; L. Bruuer). All the specimens, 

 besides two pupae, taken by me August 29, 1877. 



The species is very closely allied to the last, but differs from it dis- 

 tinctly in the character of the subgenital plate. 



20. Cl>s T EREUS SERIES. 



In this more than usually homogeneous group, the male prozona is 

 quadrate or slightly longitudinal, and the interspace between -the 

 mesosternal lobes of the same sex varies from a little longer than broad 

 to twice as long as broad. The tegmina are always fully developed, 

 surpassing somewhat the hind femora, and at most are feebly maculate, 

 the flecking not always confined closely to the discoidal area. The 

 hind tibiae are blue or green (in one instance apparently reddish yellow) 

 and have ten to twelve spines in the outer series. 



