. Mr. J. S. Baly on new Genera and Species of Phytophaga. 33 



V. — Descriptions of new Genera and Species of Phytophaga. 



By J. S. Baly. 



Fam. Chrysomelidae. 



Genus Carystea. 



Corpus subelongatum aut elongatum, parallelum, convexum, ssepe 

 subcylindricum. Caput hreye; facie lata, deplanata ; epistomate 

 brevi, transverse ; antennis subfiliformibus ; mandibulis parvis ; 

 palpis maxillaribus articulo ultimo truncate. Thorax transversus, 

 elytra latitudine aequans, lateribus non incrassato-marginatis. Ely- 

 tra parallela, apice rotundata, plus minusve regulariter punctato- 

 striata. Pedes mediocres ; unguiculis muticis. 



Type, Carystea (Australica) JVaferhousei, Baly. 



The simple claws separate this genus from Australica; the 

 short head, narrow parallel form, together with the broad thorax 

 without a thickened lateral margin, divide it from Chrysomela 

 proper. 



Australica fulvilahrisy Germ., also belongs to this genus. 



Carystea inornata. 



C. elongata, minus angustata, parallela, convexa, cuprea, nitida ; 

 thorace antice et ad latera capiteque crebre punctatis, illo disco 

 Isevi, fere impunctato ; elytris punctato-striatis, interspatiis sub- 

 costatis. 



Long. 4 lin. 



Hab. Swan River. Collected by Mr. Du Bourlay. 



Head closely and coarsely punctured ; face broad, impressed 

 with a longitudinal groove, which runs upwards from the epi- 

 stome ; antennae black, obscure fulvous at their base. Thorax 

 twice as broad as long, sides rounded, converging at base and 

 apex ; upper surface closely and coarsely punctured on the sides 

 and along the anterior margin; disk smooth, only impressed 

 with a few very remote punctures. Elytra parallel, each im- 

 pressed with eleven rows of distinct punctifres, which are placed 

 irregularly in a double series on each row, the first stria short, 

 the eleventh formed only of a single row of punctures ; inter- 

 spaces thickened, subcostate. 



Carystea Jansoni. 



C. elongata, parallela, convexa, viridi-senea, nitida ; capite antice, 

 antennarum basi, thorace, pectore, abdominis apice pedibusque 

 rufo-fulvis ; mandibulis antennisque extrorsum nigro-fuscis j elytris 

 confuse punctato-striatis, punctis fortiter impressis. 



Long. 2|-3 lin. 



Hab. Swan River. 



Head coarsely punctured; face with a short longitudinal 

 Ann. ^ Mag. N. Hist, Ser. 3. Vol.xv. 3 



