106 Mr. Martin Jacoby on some new species of Chrysomela. 



is of smaller size, the elytra are reddish fulvous, but traces of 

 that colour are also visible in the specimen upon which I look as 

 the type. 



Chrysomela semifulva, n. sp. 



Metallic dark bluish or slightly purplish, the head and thorax impunc- 

 tate, the latter longitudinally sulcate at the sides ; elytra obscure fulvous 

 with purplish gloss, each with four double rows of irregularly placed deep 

 punctures. Length, 3^ lines. 



Head entirely impunctate, greenish, antennae extending to the base of 

 the elytra, black, the terminal joints gradually thickened ; thorax more than 

 twice as broad as long, the lateral margin straight at the base, slightly 

 rounded anteriorly, the disc entirely impimctate, with a central longitudinal 

 groove from the base to the apex, the sides thickened, bounded within by a 

 longitudinal sulcation extending the whole length, metallic greenish, the disc 

 more obscure purplish ; elytra dark fulvous with a slight purplish gloss, with 

 four double rows of deep punctures of greenish colour, and a single row placed 

 near the suture ; the punctures of this row are very distantly placed from 

 the middle downwards, those of the third double row are entirely irregularly 

 distributed with scarcely an arrangement in pairs, the lateral margin is also 

 accompanied by a row of deep punctures ; under side and legs greenish, 

 scarcely punctured, prosternum without longitudinal sulcation. 



Hah. India, Utakamand. 



Much distinguished by the entirely impunctate head and 

 thorax. 



Chrysomela balyi, n. sp. 



Ovate, strongly convex, greenish seneous, the apical joints of the 

 antennae black ; thorax with a few deep punctures, bi-impressed at the 

 sides ; elytra reddish fulvous, strongly and rather closely punctured. 

 Length, 5 — 6 lines. 



? . Larger, elytral interstices convex, variolose. 



S' . Of metallic green and slightly brassy colour ; the head with a very 

 few fine punctures near the eyes, the labrum and mandibles black, antennae 

 very short, not extending beyond the base of the thorax, the basal joint 

 metallic green, the apical five joints strongly dilated, broader than long, 

 black ; thorax more than twice as broad as long, the sides and the interior 

 margin at the middle straight, the anterior angles rounded, and but slightly 

 produced, the surface brilliant metallic greenish, with a few deep punctures 

 and a short transverse fovea at each side, the latter without any longitudinal 

 depression ; scutellum metallic green ; elytra reddish brown, gradually raised 

 towards the middle, from there to the apex rather strongly deflexed, with a 

 short transverse depression below the shoulders, strongly punctured, the 

 punctures arranged in irregular rows near the suture and at the sides, more 

 irregularly on the disc, and more finely so at the apex than anteriorly, the 

 interstices smooth ; under side and legs metallic green ; prosternum longi- 

 tudinally convex, metasternum very slightly tuberculate in front, abdominal 

 segments finely punctured. 



South India, Madras. (My collection.) 



I do not think to err in considering specimens of larger size, 

 and with strongly rugose or variolose elytra, as representing the 

 female sex of the same species ; there is absolutely no other 

 difference to be found than the sculpture of the elytra, which are 

 much more deeply punctured, and have the interstices throughout 

 strongly convex and rugose, with traces also of longitudinal 

 costsG. 



