72 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL.XX. 



the fastigium to the hinder margin, broadening posteriorly and contin- 

 uing across the pronotum, where it is very much broader, broadest in 

 the middle or at the hinder extremity and sometimes inclosing a slender 

 thread or stripe of testaceous; there is also a lateral blue-green band, 

 its upper limit at the summit of the lateral lobes of the pronotum, 

 which starts from behind the eye and crosses the prozona, where it is 

 much the widest, occupying from a third to a half the length of the 

 lateral lobes, and occasionally suffusing the metazona; rest of pro- 

 notum brownish testaceous, sometimes with a yellow tinge; frontal 

 costa equal, as wide as the interval between the eyes, slightly depressed 

 at the ocellus; antennae orange. Pronotum obtusely angulate poste- 

 riorly, the median cariua distinct on the metazona, feebly indicated on 

 the prozona in the male and occasionally in the female. Prosternal 

 spine rather slender, conical, reaching the level of the pectus. Tegmina 

 generally slightly longer than the abdomen, especially in the male, 

 sometimes only as long as it, rather broad, especially just beyond the 

 base, brownish green, with darker green flecking.s and yellowish cross- 

 veins; beyond the subbasal enlargement they taper regularly and gently, 

 the tip rounded; hind wings a little shorter than the teginina, moder- 

 ately broad, the veins bluish green, slightly infuscated next the costa. 

 Hind femora testaceous yellow, with two broad angulate and sagittate 

 blue-green bands, darkest above; hind tibiae pale blue-green, pallid 

 at base and pallescent apically, the spines pallid, with the apical half 

 blackish brown. Supraaual plate of male subtriangular, with broadly 

 angulate sides, as long as broad, the acutely angulate tip rounded, the 

 surface nearly plane but faintly elevated to the slight ridges which 

 mark the boundaries of the rather broad and shallow median sulcus 

 that extends over the basal half, narrowing slightly in its passage: 

 there is besides, on either side, an oblique and narrow ridge, extending 

 from the extreme outer base toward the middle of the distal half of the 

 opposite side, terminating halfway there; furcula consisting of a pair 

 of scarcely projecting, minute, attingent, angulate or subaugulate lobes; 

 infracercal plate as long as the supraanal, concealed by the recumbent 

 cerci; cerci feebly compressed, of the length of the supraanal plate, 

 tapering in the basal half, beyond slender, cylindrical, subequal, but 

 apically tapering and feebly cur ved downward and inward; subapical 

 tubercle of the subgenital plate moderately prominent, erect, very 

 bluntly conical as seen from behind. 



Length of body, male, 19.5 mm., female, 27.5 mm.; antennae, male, 

 8 mm., female, 9.75 mm.; tegmina, male, 14 mm., female, 19 mm.; hind 

 femora, male, 11.5 mm., female, 1G.5 mm. 



Five males, 41 females. Cheyenne County, Kansas, F. W. Cragiu 

 (L. Bruner); Lakin, Kearny County, Kansas, 3,000 feet, July-Septem- 

 ber; between Smoky Hill, Kansas, and Denver, Colorado, L. Agassiz 

 (Mus. Comp. Zool.) ; Pueblo, Colorado, July- August; Colorado, Morrison 

 (S. Henshaw); Colorado (U.S.N.M.); Grand Junction, Mesa County, 

 Colorado, June (L. Bruner); Pecos River, Texas, Captain Pope. 



