20 ANNULOSA JAVANICA. 



Genus TRECHUS Clairv. 



31. Convexu?. T. atronitidus pedibus antennisque piceis, his ad basin palpisque pallidioribus, elytris substriatis. 



Long. corp. J- 

 Insectum Cephalotis habitu parvulum alatum vix huic generi associandum. Caput nigronitidum latitudine 

 thoracis. Antenna articulis subajqualibus primo duobus sequentibus simul sumptis breviore, articulis 

 quatuor ultimis crassioribus, apicali longiore ovato. Palpi maxillares articulo ultimo subulato cum 

 tertio breviore quasi articulum unum fusiformem formante. Thorax convexus marginatus obcor- 

 dato-truncatus, basi angustior, latior quam longus, medio vix canaliculato. Elytra striis sub lente 

 distinctis, prima ad scutellum brevissima. 



Obs. Although I have assigned this little insect to the genus Trechvs, I am aware that it differs 

 from it in many respects. The only specimen however in the collection is so mutilated, that I 

 cannot venture to found a subgenus upon it, and therefore present as full a description of it as its 

 being pasted down on paper will permit me to make. It agrees with the characters of Trechus 

 given in the, Regne Animal of M. Cuvier ; but these have been too vaguely drawn up to enable 

 a beginner to form a correct idea of the genus. 



Subgenus GNATHAPHANUS Nobis. 



Antenna articulis fere Eequalibus secundo breviori. 



Labrum transverso-quadratum, angulis anticis rotundatis. 



MandibulcB sub clypeo fere occultee ; sinistra ad basin solum apparente. 



Palpi maxillares articulo ultimo subsubulato, tertio obconico breviori. 



Palpi labiales articulo ultimo preecedente breviore, subulato, acuto. 



Menlum breve, transversum, dente sinus minimo simplice. 



Caput transverso-quadratum, latius quam longurn, antice truncatum facie brevissima. 

 Thorax ut in Harpalo, sed fossula lineari brevi utrinque postice impressus. Corpus 

 oblongum. Elytra striis irregularibus punctisque discalibus, apice emarginata ve! 

 excisa. 



Obs. To this subgenus the Harpalus Thunhergi, of Schonherr appears to belong. It differs, 

 however, from the following species, in being pubescent. 



32. VuLNEitiPENms. G. ater, elytris decem-striatis : strid secundd brevi spatioque inter strias tertiam et quartam 



septem punctata. 



Long. corp. -k + 

 Insectum nitidiusculum. Caput linea transversa antica utrinque fossulata. Palpi articulo ultimo piceo 

 Antenna obscure pubescentes. Thorax lateribus posticeque marginatus, medio canaliculate Sen 

 tellum mconspicuum. Elytra marginata stria secunda cum prima ad scutellum confluente • striis 

 quarta et quinta, sextd et septima apice confluentibus, spatio inter septimam et octavam bi-vel-tri- 

 punctato, illoque inter decimam et striam marginalem punctato scabroso. Pedes nigri. 



Genus HARPALUS Lat. 



33. PomTILABBis H : niger antennis apice rufo-pubescentibus, labri limbo antico brunneo scxpunctato facie 



transverse-hneata. l ■' 



Long. corp. i 



Caput 



