140 



PSYCHE. 



[December, 1900. 



hind tibiae dark glaucous, with a pale yellow 

 post-basal annulus and a black base. 



Length of bodv, $, 26 mm., ?, 30 mm.; 

 antennae, $ ^ 9.25 mm., ? , 10 mm.; tegmina, 

 ^. 29.5 mm., $, 29 mm ; hind tibiae. $ ?. 

 1 1.5 mm. 



8(J, 12 9- Siskiyou, Or., Sept. 6; 

 Yosemite Valley, Cal., Aug. ii, A. P. 

 Morse. 



I redescribe this species because I 

 am not quite sure that it is identical 

 with Bruner's C. shastaniis. That was 

 described from a single specimen from 

 Shasta Co. Cal., which I have not seen, 

 and which, if now in existence is in the 

 national museum. Bruner describes the 

 tegmina as agreeing in markings with 

 those of his C. hrpidicola {C. lohatus 

 Sauss.), but in their conspicuous mott- 

 ling my specimens are widely different 

 from a specimen of C. lapiilicola sent me 

 by Bruner, in which the markings are 

 nearly obliterated. There is ho\' ever a 

 wide difference also in this respect be- 

 tween the specimens before me from 

 Oregon and the Yosemite valley, the 

 latter being far more distinctly mottled, 

 so that I am inclined to lay little stress 

 on this point. In the structural features 

 of the wings, the specimens before me 

 agree well with Bruner's description. 



7. Circotettix suffusus. 



Tritiicrotrppis suffusus Scudd.!, Bull. 

 U. S. geol. surv. tern, II, 265 (1876). 



Circotettix suffusus Scudd.. ' Proc. 

 Davenp. acad. nat. sc, VIII, 43 (igoo). 



Trimerotropis Columbia Scudd.!, Rep. 

 ent. soc. Ont., XXIII, 77 (1893). 



Circotettix suffusus is a stepping stone 

 toward the fallax group of Trimerotropis 

 and is with difficulty separable from 

 T. fallax; the veins of the hind wings 

 are but little thickened and the mark- 

 ings of the wings are much the same. 

 In C. suffusus., however, the infumation 

 in the middle of the wings is generally 

 deeper. To a less extent than in the 

 other species of Circotettix, the cells of 

 the outer half of the anal area are pre- 

 dominantly tranverse, while in T. fallax 

 they'are usually polygonal and subequal. 



I have seen specimens from Vancou- 

 ver Isl. (Edwards, Crotch), British Co- 

 lumbia (Crotch), Nanaimo and Sandon 

 B. C. (Fletcher), Oregon City, Or., July 

 (Harford), Sierra Nevada (Edwards), 

 vicinity of Lake Tahoe, Nev., Sept., Oct. 

 (Henshaw — Wheeler's expl.), and Col- 

 orado, S5oo',-ioooo' (Morrison); and 

 have taken it myself at American Fork 

 Canon, Utah, 9500', Aug. 23, Garland, 

 Col., 8000', Aug. 28-29, Manitou, Col., 

 6300', Aug. 24-25, Florissant, Col., 

 8000', Aug. 17-22, Alma, Col., loooo', 

 Aug. 13-14, north fork of South Platte, 

 Col., Aug. 10, Evanston, Wyo., 6800', 

 Aug. 6, and Yellowstone Park, Sept. 6- 

 12. It has also been reported from 

 Washington (Bruner), and wrongly by 

 me from Mt. Shasta, Cala., the reference 

 being properly to T. fallax. 



8. Circotettix verruculatus. 



Locusta vcniiculata Kirb}', Faun. bor. 

 amer., IV, 250 (1837). 



OcdipOila Tcrruiulata Scudd., Can, 



