50 Mr. Baly's Descriptkmfi of unclioraderked Pliytophaga. 



disk, more crowded and larger on the sides. Elytra slightly 

 hroader than the thorax, sides parallel, apex broadly rounded ; 

 above convex, sides impressed below the shoulders with three or 

 four irregular fovea? ; strongly but not coarsely punctured, the 

 punctures irregularly placed in eight double rows on each elytron ; 

 interspaces smooth, iinpunctate. Prosternum, nietasternum and 

 abdomen almost entirely feneous, hinder thighs also with an 

 feneous tinge. 



Stetliomela Umhata, n. sp. 



Oblongo-ovata, convexa, nitida, subtus picea, thorace, metas- 

 terno, femoribusque rufis ; supra rufo-testacea, verticis macida, 

 thoracis maculis tribus, transversim positis, scutelloque nigro- 

 piceis, antennis, nigris, elytris viridi-aineis, regulariter punctato- 

 striatis, utrisque flavo-limbatis. Long. 3| lin. 



Hab. Australia. 



Clypeus very short, bounded above by a slightly angular trans- 

 verse groove, apex of jaws black ; front with a transverse nigro- 

 piceous patch, the anterior margin of which is tri-lobate. Thorax 

 nearly three times as broad as long, sides straight and slightly 

 converging to the apex, anterior angles obtuse ; surface finely 

 punctured, disk impressed on either side towards the outer 

 margin with a large fovea ; a large ill-defined patch covering 

 the middle of the disk and a small one on either side, sub- 

 rotundate, nigro-piceoTis. 



Sfethorada rornuta, n. sp. 



Ovata ^ , oblongo-ovata ^ , subtus obscure cuprea, supra ruf o- 

 cuprea, aureo-micans, thorace sparse hie illic punctato ; elytris 

 regulariter punctato-striatis, interstitiis laivibus. 



Mas. Mandibulis porrectis, forcipatis, apice acutis. Long. ^ 

 4 lin. ; $ 41 lin. 



Hab. Port Bowen, Queensland, {A. Simson). 



This species is remarkable not only in the genus but also in 

 the whole family for the peculiar form of the mandibles in the 

 ^ , in that sex these organs are large, forcipate and strongly pro- 

 duced directly forwards, their apices being acute and their 

 inner surfaces deeply grooved, in the ^ on the contrary they are 

 of the normal size and form ; antennae slender, one third the 

 length of the body. Thorax twice as broad as long, sides 

 rounded and converging from base to apex, disk sparingly punc- 

 tate. Elytra broader than the thorax, broadly ovate, moderately 

 convex, regularly punctate-striate, the interspaces between the 

 striaj smooth, impunctate ; below the hiimeral callus are several 

 large indistinct fovea?. 



