of the Royal Physical Society. 303 



robustse, extus rotundatse supra carinatse, apice acutse haud 

 denticulatse. Maxillse acuta?. Palpi breves et modice ro- 

 busti ; palporum externorum articulus ultimus longus et cy- 

 lindricus, articulus penultimus triangularis basi pedunculatus ; 

 articulus ultimus palporum labialium elongato-ovatus. Men- 

 turn latum, leviter excavatum et profunde emarginatum, cum 



Fig. 2. 



dente medio bifido et malis rotundatis. Ligula curta, trun- 

 cata, leviter emarginata, antice quam postice latior, carinata. 

 Paraglossse nullse. Antennse breves moniliformes, articu- 

 lis apicalibus pubescentibus compressis et dilatatis, spatio 

 sat lato lsevi et nitido singulis relicto et supra et subtus. 

 Prothorax subquadratus, anguste marginatus, capite multo 

 latior, antice quam postice parum angustior, lineis duabus 

 posticis longitudinaliter impressus, angulis anticis parum 

 acutis, posticis fere rectis. Prosternum sat prominens et 

 paulo projiciens. Scutellum mediocre. Elytra prothoracis 

 fere latitudine, breves, sat convexa et sat fortiter marginata, 

 striata, apice emarginata baud truncata. Pedes mediocres. 

 Tibise anticse dilatatse, intus emarginatas, subtus excavatss. 

 Tarsi breves transversi et moniliformes, antici breviores; in 

 fcemina et supra et subtus nitidi et politi, sine setis vel squamis, 

 ciliis ad marginem anteriorem singulorum adstrictis exceptis ; 

 in mari antici squamis setisque instructi, ceteris ut in fcemina. 

 Unguiculi simplices. Corpus haud elongatum, parum con- 

 vexum. Abdomen segmentis quinque, quorum primum et 

 secundum conglutinata sunt. 



This genus is allied to the preceding, but it differs in its 

 shorter, more compact, and convex shape, somewhat different 

 form of the thorax, and in its mentum having a bifid tooth in 

 the middle instead of a single tooth ; in the last joint of the labial 

 palpi being slender elongate-ovate instead of large, swollen and 

 securiform, and in the under side of the anterior tarsi in the 



vol. i. 2d 



