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



obsolete from thence to the apex : upper surface somewhat closely and 

 deeply punctured, disk impressed on either side with a distinct fovea. 

 Elytra much broader than the thorax, sides parallel apex broadly 

 rounded ; above very convex, somewhat closely punctured, humeral 

 callus subprominent, basilar space in each elytron bounded beneath by 

 a semicircular fossa. 



Genus Rhypakida. 



Corpus oblongum aut subelongatum, convexum. Caput perpendiculare ; 

 mandibuUs apice emarginatis : tattenms gracilibus, subfiliformibus, ex- 

 trorsum vis incrassatis; palpis gracilibus; oath's oblongo-ovatis, intus 

 emarginatis aut sinuatis ; epistoma distinctum, antice emarginatum. 

 Thorax transver.-us, supeme couvexus. lateribus marginatis. Elytra 

 breviter suboblonga aut oblonga, supeme convexa, puuetato-striata, 

 apice rotundata, lateribus parallelis aut apicem versus perparum angus- 

 tati*. Pedes modice robusti, femoribus paullo incrassatis, subtus rarius 

 dentatis ; tibiis posterioribus extus ad apicem emarginatis ; itiujuiadis 

 unidentatis. Prosternum oblongum aut elongatuin, antvpectoris pro- 

 cessu antero-laterali subtrigonato, margine antico obliquo, angulo ex- 

 teriore ad angulum anticum thoracis extenso. Miesosternum subqua- 

 dratum aut oblongum, apice paullo dilatatum, obtuse truncatum. 



Type, Rhyparida dim'uliata. Bah'. 



Rhyparida forms one of a group of genera (many as yet unde- 

 scribed) possessing in common a notch on the outer edge of the four 

 hinder tibiae, near their apex. They may be divided into two sec- 

 tions, viz. one in which the claws are toothed, and a second in which 

 they are simply appendicuJated ; of the first section, to which Rhy- 

 parida belongs, Typophorus is, I believe, hitherto the only cha- 

 racterized genus. Rhyparida (the species of which are natives of 

 Australia and the Eastern Archipelago) differs from the above- 

 named in the transverse thorax and in the different form of the 

 antero-lateral plate of the antepectus : this part in the older genus 

 has its anterior margin convex, and produced beyond the border of the 

 thorax ; in the present the same margin is oblique, and not ante- 

 riorly produced. 



Rh ypa rid a dim idia ta . 

 R. oblonga, convexa, picea, subnitida ; antennarum basi elytrisque obscure 

 fulvis, his punctato-striatis, dimidio apicali nigro-piceis. — Long. 2-3 lin. 

 Hab. Moreton Bay. 



Oblong, convex, subnitidous, piceous. Head obscure rufo-piceous, 

 epistome transverse, middle of its apical margin produced upwards into 

 an acute tooth, surface punctured ; antennae filiform, equal in length to 

 the body in the male, shorter in the female, black, their base fulvous. 

 Thorax nearly twice as broad as long, sides rounded, narrowed in 



