172 VROCEEDIXaS OF THE XATIOXJL MUSEUM. vol. xx. 



a little clavato, somewhat recurved, the su])r}iaiial plate triangular with 

 slightly convex and slightly elevated lateral margins, subrectangulate 

 apex, an«l a rather narrow and not very deej) percnrrent median sulcus, 

 bordered oy narrow butratlier low and rouiuled walls; furcula consisting 

 of a pair of very slender, feebly divergent, tapering, acuminate spines, 

 scarcely a fouitli as long as the snpiaanal jdate; cerci consisting of a 

 feebly tapering, feebly tumid basnl half,and a subequal, slenderer, com- 

 pressed apical half, the latter bent feebly inward .and slightly upward, 

 rounded apically, the whole a little nioi'e than twice as long as mediau 

 breadth ; subgenital plate with the apical margin feebly elevated, thick- 

 ene<l andinesially imtched, but not deei)ly. 



Length of body, niale, 1*3 mm., female, 2^ mm.: antennae, male, 8.5 

 mm., female, 1> mm.; tegmina, male, -0 mm., female, 22..") mm.; hind 

 femora, male, 12. '^"5 mm., fennile, 14 mm. 



Six males, 4 females. Salt Lake Valley, Utah, August 30 (L. Bruner) ; 

 Fort McKinney, .I<»hnson County, Wyoming, July (same)j Olmstead's, 

 near Kllensburg. Kittitas County, Washington, July 14, 15, S.IIenshaw 

 (Museum Comparative Zoology): Kllensburg, Kittitas County, Wash- 

 ington. July 14, Henshaw (same); Spokane, Washington, July 21, 22, 

 Henshaw (same); Loon Lake, Colville Valley, Washington, July 25, 

 Henshaw (same); Camj) Umatilla, Washington, .lune 27, Henshaw 

 (same); IJritish Columbia, Crotch (same). 



Bruner in an unpublished account of this species gives its habitat as 

 ^'in the mountains near Ogden,Utah, among the low trees and bushes, 

 at an elevation slightly above the highest t>f the ancient shore lines of 

 Salt Lake; also among the foothills of the Big Horn Mountains, near 

 Fort McKinney, Wyoming." 



In the same manuscrii)t, liruner compares the present sx)ecies with 

 M. ntlanis, as follows: 



Closely related to M. aflanis in many res]>e(t.s ; from ■\vbicb it is to be d'stiugnisbed 

 l»y its soincwbat larj;er size ami more rohust form, also by its larger bead and more 

 prominent eyes, Tlie last ventral segment [subgenital plate] of tbe male i- diorter 

 and tbe male eerei are narrower tban in tbe typical (itlanin. Tbe color of tbe hind 

 tibiae is pale glaneoiis as in intermedins instead «»f red, aa is usually the case in 

 typical si)eciuiens of atlrnix. 



23. MELANOPLUS INTERMEDIUS, new species. 



(Hate XII, tigs. 8,4.) 



MelanoplitH inierinediiix ItHCXKHl. MS. 



QSome of tbe synonymy given under M. athitiis ahnost certainly belongs bere.] 



A medium sized or rather small species, of slender form, brownish 

 fuscous, dull testaceous beneath. Head slightly prominent, ruf<>- or fusco- 

 testaceous, more or less heavily tlecked with fuscous above, or wholly 

 infuscated, with a broad juceous or fuscous postocular baud ; vertex 

 gently tumid, a little (sometimes considerably) elevated above the level 

 of the ])ronotu»n, the interspace between the eyes fully half as broad 

 again as the first antennal joiut, slightly broader in the female than iu 



