510 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 9t 



legs with forefemora unarmed; foretibiae with three pairs of small 

 spines, the proximal pair about centrally placed beyond the tym- 

 panum, the apical pair minute. Middle legs with the mesofemora 

 spineless but with a few short stiff bristles on the internal ventral 

 keel; mesotibiae with five ventral pairs of small spines in the apical 

 half. Caudal femora without teeth; caudal tibiae with 14-17 small 

 external and 18-20 internal teeth on the dorsal keels; ventral keels 

 spineless. 'Supraanal plate very small, triangular; cerci short, slen- 

 der, and conical. Ovipositor short, slightly recurved apically. its 

 greatest depth about the middle. Subgenital plate triangular, with 

 rounded truncate apex and gently convex sides, when viewed from 

 the end scoop-shaped. 



Coloration. — Unicolorous, bleached white by preservative, probably 

 foliage green in life as common in the genus. 



Rem<irks. — Nothing is known about the biology or habitat of this 

 small species, which is known only from the type locality. 



XIPHIDIOPSIS GRAHAMI, new species 



Figure 157, a-c 



This pretty little species is recognized in the male by its minute 

 size, large pronotum, pale brownish coloration, and black sides, with 

 the tegmina completely hidden under the pronotum. The female is 

 distinguished from X. yachoioensis by its smaller size, slighter build, 

 narrower ovipositor, and the brownish markings on the pronotum; 

 from minutus Tinkham by its hidden tegmina, markings on the prono- 

 tum, and less recurved ovipositor ; and from hastaticercus Tinkham by 

 smaller tegmina and the markings on the pronotum. 



Holotype. — Male, Mount Omei, Shan Kai Si, Szechwan, western 

 China, elevation 4,400 feet, Augiist 6, 1929 (D. C. Graham) . Measure- 

 ments in millimeters: Body length 6.0; pronotum 3.7 by 1.8; hind- 

 femora 7.0. U. S. N. M. No. 56292. 



Description. — Size very small, head broader than deep, the great- 

 est depth being at the level of the eyes. Eyes circular, prominently 

 subglobular; vertex slightly greater than the diameter of an eye, 

 with a small bluntly rounded fastigial cone. Pronotum large, very 

 slightly broader on the metazona although appearing much broader 

 because of the nature of the brown stripes on the dorsum of the prono- 

 tum. Posterior margin of the pronotum angularly rounded; the 

 lateral lobes of the pronotum shallow. Tegmina small, completely 

 hidden by the pronotum when viewed from above ; the apical portions 

 visible from the sides but not approximating the posterior margin of 

 the pronotum. Leg spination as follows : Forelegs with forefemora 

 unarmed; foretibiae with four pairs of long ventral spines. Middle 

 legs with mesofemora unarmed ; mesotibiae with five pairs of ventral 



