186 



MR. J. S. BALT ON SOME GENEBA 



the fifth shorter than either of the preceding two, broader than 

 long, trigonate, its antero-external angle slightly produced, 

 acute. Thorax more than one half as broad again as long; sides 

 nearly straight and diverging from the base to beyond the 

 middle, thence obliquely converging towards the apex ; disk 

 deeply transversely sulcate immediately behind the middle, the 

 sulcation more deeply impressed on each side, abbreviated just 

 within the lateral margin ; surface very finely and remotely 

 punctured, the punctures more crowded on the sides in front. 

 Elytra oblong, dilated posteriorly ; convex, transversely excavated 

 below the basilar space, finely punctured. 



The abdomen of the c? in the only specimen known to me is 

 not fully developed ; I am therefore unable to give the form of 

 the median lobe of the anal segment of the abdomen. 



Genus Leptoxena. 



. Corpus angustum, elongatum, convexum. Caput exsertum ; antennis 

 filiformibus, extrorsum leviter incrassatis et paullo compressis ; 

 oculis integris ; palpis maocillaribus ovatis, articulo ultimo acute. 

 Thorax transversus, transversim convexus. Elytra subcylindrica ; 

 epipleuris a basi ad angulum posticum extensis. Pedes robusti ; 

 tibiis inermibus ; unguiculis bifidis, dente interno breviore ; femoribus 

 tibiisque posticis in S incrassatis ; tarsis posticis articulo basali ad 

 duos sequentes fere tequilongo. Prosternum basi non lobatum ; 

 acetabulis anticis fere clausis, epimeris anticis cum antepectoris mar- 

 gine postico intirae connexis. 

 Leptoxena is allied to Galerucella, but may be separated from 

 that genus by its narrower form, thickened hinder legs in 

 the cJ, and by the anterior epimera being continuous with the 

 hinder border of the antepectus for their whole length, whereas 

 in Galerucella their apices are free. 



Leptoxena eximea. Anguste elongata, parallela, transversim con- 

 vexa, fusco-fulva, subnitida, thoracis punctis duobus, antennis (basi 

 exceptis) abdomineque nigris ; thorace transverse, lateribus late rotun- 

 datis, antice sinuatis ; disco nitido, leviter transversim convexo, 

 utrinque leviter excavato ; elytris fere parallelis, subcylindricis, infra 

 basin non excavatis, fortiter et irregulariter punctatis, vittis non- 

 nuUis, leviter elevatis instructis, interstitiis reticulatis. Long. 

 5 lin. 



