The following two new Acrididae were taken by me in July and
August, 1928 in the valley of the lake Zaisan and in the western part
of Saur Mountains.Peer reviewe

Bey-Bienko, G. J

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• 1.—Left elytron of	 ol Chorthippus(Stauroderus) uvarovi sp. nov.FigTwo new Acrididae from the neighbourhoodof lake Zaisan(Orthopt.)BYG. J. BEY-BIENKO.The following two new Acrididae were taken by me in July andAugust, 1928 in the valley of the lake Zaisan and in the western partof Saur Mountains.i. Chorthippus (Stauroderus) uvarovi sp. nov. (fig. 1).Related to Ch. (St.) jakobsoni Ikonn. but differing from it inmany features.Body somewhat stout. Head with not strongly oblique face, ra-ther thick; frontal ridge sulcate, gradually widening downwards; fo-veolae of the vertex deep,with sharp margins; antennaehalf again as long the as thehead and pronotum taken to-gether. Lateral keels of pro-notum strongly incurved inthe middle of prozona andregularly diverging both for-mrards and backwards; transverse sulcus placed a little behind themiddle; hind margin roundly angulate. Elytra broad and somewhatpointed on the apex, extending beyond the middle of hind femoraand almost reaching to the apex of the abdomen; mediastinae areabroad, not extending to the middle of the anterior margin, with dis-tinct false vein; scapular area not strongly expanded and not shining,subpellucid, with obligue, more or less regular veinlets; second radialI 20	G. J. BEY-BIENKOvein somewhat incrassate; longitudinal axis of elytron lies in the dis-coidal area near the hind radial vein; discoidal area parallel-sided,reaching to the base of the apical third, as broad as, or narrower than,the scapular area; transverse veinlets irregular; first ulnar vein straight,practically parallel to the third radial and the second ulnar veins, orfably diverging from the latter. Wings strongly abbreviated, half aslong as elytra. Subgenitale plate obtuse, short; cerci somewhat flat-tened, narrowly-triangular, with pointed apex. Hind femora short,thick.General coloration dark-brown or greyish-brown. Antennaeblack. Lateral keels of pronotum marginated with velvety-black;metazona on lateral keels with very distinct white stripes which areindistinct or absent in prozona. Hind femora with indefinite darkfasciae on outside and with a longitudinal blackish stripe ab the baseof the inner side; knees black; hind tibiae dirty-red with a black con-dylus. Apex of the abdomen reddish.y . Fastigium of the vertex with a distinct transversal bow-sha-ped impression; antennae a little longer than the head and pronotum.The latter distinctly gibbose. Elytra sharpened on the apex, notreaching to the middle of hind femora, covering somewhat more thanthree tergites but less than four. Valvae of the ovipositor short,without teeth.General coloration darker than in the male sex. Antennaebrownish-dark. Pronotum with narrow but distinct white stripes onthe lateral keels of prozona and with very distinct broad stripes in me-tazona. Hind femora with more distinct dark fasciae on the outside.Length of body	 15-16 mm.; y, 24-26; pronotum 3, 3.2-3.5;Ç,4.4-4.6; elytra	 9-io; y, 8-8.5; hind femora 3, 9.2-1O.2; 2 11-12.The male type and paratypes (8 (37' 61 and 7 ) are from thewestern part of the Saur Mountains: the riber Tshur-tsutsu, about25 km. SSW. from Zaisansk, 29-31.V1I.1928.Ch. uvarovi is a very distinct species related to Ch. jacobsoni fromwhich it differs specially by distinctly longer elytra, by venation,and by coloration of the pronotum. It was taken on the sunny stonyslopes with sparse xerophilous vegetation.I name this species in the honour of my teacher and.friend, thewell-known orthopterologist Mr. B. P. Uvarov.Fig. 2.—Posterior leg of Sjeking-,onotuskalophilus sp. nov., dTWO NEW ACRIDIDAE FROM THE NEIGHBOURHOOD OF LAKE ZA ISAN	 1212. Sphingonotus halophilus sp. nov. (fig. 2).Small, robust. Head with strongly prominent eyes, but fee-bly prominent abo y e the pronotum; foveolae of the vertex very indis-tinct; frontal ridge in profile convex and slightly prominent abo ye thebase of antennae; fastigium of the vertex sloping, impressed but withnot strongly elevated margins, median keel practically absent; facesomewhat reclinate; antennae as long as the head and pronotum toge-ther. Pronotum short; median keel not elevated in prozona, but dis-tinct; metazona half again as long as pronotum; hind rnargin obtusely-rounded; lateral lobes with roun-ded fore and hind lower angles.Elytra short broad, parallel-si-ded, with sparse venation, rea-ching slightly beyond the apexof hind femora; intercalate veinin discoidal area thick, practi-cally parallel to the third radialor, rarely, somewhat approa-ching it in the apical third.\\rings short and broad, withsparse transversal veinlets; squa-re cells in the middle of wing distinctly longer than broad. Hindfemora short and thick. Hind tibiae considerably shorter than femo-ra, with very thin and sparse pubescence.General coloration pale-sepia with dark spots or somewhat darker.Antennae whitish with dark rings. Elytra with two dark transversefasciae and with small spots in the apical third or, rarely, elytra onlywith sorne small dark spots not forming fasciae; veins darkened.Wings hyaline, shiny and pellucid as glass; veins dark. Hind femorawith dark fasciae on the outside and whitish on the inner and lowersides. Hind tibiae whitish; apices of spines black.. As the male but larger. Fastigium of the vertex withoutany trace of median keel. Antennae a little shorter than the headand pronotum together.Coloration as in the male.1 22	 G. J. BEY-BIENKOLength of body 61 , 13-14 mm.; y, 18-18.5; of pronotum e, 2.8;y, 3-3.1; of elytra	 12-12.5; y, 14-14.5; hind femora	 6.5-7;y, 8; hind tibiae d, 5 - 5 . 4 ; y, 6.Described after 14 d1 d' and 5 y 9 taken by me near TopolevMys, lake Zaisan, on dried saline soil («takyr») 25-26.VILI928 inassociation with Sphingonotus	 Pall.This beautiful species differs from other species of the genusSphingonotus in its small size, short and broad elytra and vvings whichalso characterised by a sparse venation; in hyaline and pellucid wings;and in short hind tibiae. It is very probable that it is related to ano-ther small species viz. Sph. halocnemi Uvarov described recently fromthe shores of the lake Tungurluk-Sor, prov. Uralsk, S. E. Russia 1 , butdiffers from it in many features, described abo ye. Sph. halophilusdiffers also from Sph. halocnenzi in its ecology, as the former occurson dried salirle soil and the latter on the damp.Uvarov (B. P.): «Notes on the Acrididae (Orthoptera) of Central Asia,with descriptions of new species». 9-ourn. Bombay Natural Bist. Soc., 1925,t. XXX, N. 2, pp. 265-266.

Two new Acrididae from the neighbourhood of lake Zaisan (Orthopt.)

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