154 VnoCKETtlSiiS of the SATIOSAL Ml SEVM. VOI.XX. 



\im\fi iis (reinalc) the hind tVMiiora, tViTugiiioiis, more cir less inriisciited 

 apit'iill.v. Pronotiiiii suIh>4|I12iI oh the pro/oiiu, the iiietii/.oiiaexpiiiidiii;; 

 gently, the trout inur^iii sdhtruncate, the hind margin obtusely aii^iihite, 

 tlie an^jle well rounded, the disk ;;ently eonvex, passing; in.seusibly int<> 

 the lateral lobes, the median eariiuv sli<;ht on the meta/ona, indieated 

 only by a pallid line on the pro/ona, the meta/ona clonely and delicately 

 punctate, the pro/.ona a little longitudinal (male) or ipiadrate (female), 

 Hli^htly lonp'r than the metazona. Prosternal spine lon^', conical, 

 erect, blunt, a little shorter in the female than in the male; .steinuin 

 sparsely puiu-tate, the interval between the mesosternal lobes consid- 

 erably more than twice (unile) or fully twice (female) as lonj; as broad, 

 the nietasternal lobes attingent over a considerable space (male) or 

 appioxiinate (fennde). Tej^mina slender, gently tapering, well rcumded 

 at tip, Hur]»assing considerably the tips of the hind femora, without 

 markings; wings ample, pellucid, the veins aiul cross veins glaucous, 

 more and nu)re infuscated apically. Femora green, or more or less 

 infuscated or embrowned, the hind pair rarely having the upper fa<'e 

 infuscated with feeble, never distinct, fuscous clouds, tl 8 genicnilar arc 

 more or less testaceous above; hind tibiae very faintly incurved, green 

 becoming feebly tlavescent apically, the spines rather short, pallid 

 green, briefly black tipped, ten in number in the outer series, 

 f^xtremity of the male abdomen subclavate. upturned, the supraanal 

 l)late sub('iyi)eate, narrowing gently in the basal, rapidly in the ai>ical 

 half, slightly constricted in the middle of the basal half, the ai>ex 

 rectangulate, the sides broadly and considerably elevated, the rest of 

 the surface plane with a scarcely perceptible median sulcus, except 

 apically where it is slight; furcula consisting of a pair of very large, 

 broad, depressed plates, originating at the base of the last dorsal 

 segment and reaching almost to the middle of the supraanal plate, 

 subeijual and attingent for half their length, beyon<l wMth their inner 

 margin roundly excised, the apex obli(picly and broadly truncate, so that 

 the inner a]>ical angle is acute; cerci rather small, rapidly narrowing 

 on the basal half by the decliveuce of the upper margin, beyond ecpial. 

 compressed cylindrical, blunt tipped, straight, distinctly shorter than 

 the supraanal plate and not grently surpassing the last ventral 

 segment ; subgenital plate moderately narrow, subequal, the lateral 

 margin straight, the apex not in the least elevated and but feebly 

 prolonged, strongly rounded as viewed from above. 



Length of body, male, 23 mm., female, 28.5 mm.; antennae, male, 

 1.3 mm., female, 0.5 mm.; tegmina, male, 21 mm., female 23.5 mm.; 

 hind fen)ora, male, 12 mm., female, 14.3 mm. 



Seven males, eight females. El I'aso, Texas, November ( LT.S.N.M. — 

 liiley collection; L. Bruner); Albuquerque, Bernalillo County, New 

 Mexico, August, Snow (University of Kansas); Las Cruces, Uonna Ana 

 County, New Mexico, October, ovipositing, T. D. A. (Jo(;kerell; Fort 

 Grant, Graham County, Arizona (U.S.N.X — Riley collection). 



