Mr. J. S. Baly on the Phytophaga. 203 



The insects composing the genus Leptarthra have hitherto been 

 placed in Ccelomera ; the resemblance, however, is only external, the 

 structure of their antennae, together with all their other characters, 

 differing so completely as to render it unnecessary to point out the 

 distinctive marks here. 



Leptarthra abdom i nails. 



L. ovata, postice paullo ampliata, convexa, nitida, obscure viridi-metalliea, 

 purpureo-micans ; abdomine elytrisque rufo-testaceis, his fortiter sub- 

 crebre punctatis, antennis scutelloque nigris. — Long. 4g-5£ liu. 



Hub. Northern India. 



Antennas slender, equal in length to the body ; thorax one-half 

 broader than long, sides nearly straight and parallel, narrowed in front, 

 anterior angles prominent, their apex obtuse, upper surface smooth and 

 shining, grooved transversely just behind the anterior border, the 

 hinder disk impressed with three large deep circular foveas arranged 

 transversely in a gentle curve ; scutellum semiovate ; elytra deeply 

 punctured, the disk of each with two or more nearly obsolete longi- 

 tudinal vittSB ; anal segment of abdomen in the male impressed by a 

 shallow fovea. 



Leptarthra Dohrnii. 



L. oblonga, postice paullo ampliata, convexa, nitida, obscure viridi-me- 

 talliea ; elytris subfortiter striato-punctatis, striis prope suturam et ad 

 latera saspe confusis, punctis in striis inordinatini dispositis. — Long. 

 6-7 liu. 



Hah. Northern India. 



Antennas slender, equal in length to the body ; thorax at the base 

 nearly twice broader than long, sides nearly straight, narrowed from 

 their base to the apex, the anterior angles prominent, their apex sub- 

 acute, upper surface sculptured nearly as in the preceding species, the 

 transverse groove in front more deeply impressed, strongly sinuate in the 

 middle, and sending a short longitudinal groove backwards to the cen- 

 tral fovea ; scutellum rather narrower than in Leptarthra abdominalis ; 

 surface of the elytra pimctate-striate, each stria being formed of several 

 irregular rows of punctures, the outer strias and those near the suture 

 more confused and often quite lost, interspaces impressed with scattered 

 punctures which A'ary both in number and depth, sometimes being as 

 deep as those forming the strias themselves ; on the suture, a short 

 distance below the scutellum, is a broad shallow depression ; anal seg- 

 ment of abdomen in the male impressed by a deep semiovate fovea. 



Genus Palpoxena. 



Corpus subelongatum. Caput exsertum ; antennis gracilibus, fiKformibus, 

 corporis longitudine, articulo primo a basi ad apicem breviter incrassato, 

 secundo brevissimo, tertiq primo paullo longiore ; ' labro transverso : 



