ANNULOSA JAVANICA. 57 



membranacea, tenuis, cylindrica vel potius subulata, labio multo longiore. 

 Mentum tridentatum dente sinus simplice. 

 Thorax longior quam latior, eonvexus, marginatus, medio canaliculars. 



Ods. This subgenus has the habit of Dolichus, from which it is not fat- in affinity. 



26. Svbiridescens. D. atronitidus palpis antennis tarsisque piceo-rufis, tkorace brevissimo, elytris striatit atro- 



iridescentibus. 



Long. corp. | + 

 Caput totum laevissimum. Elytra stria prima ad scutellum brevissima, sculptura marginali irregulari. 

 Corpus subtus atronitidum pedibus nigris. 



Subgenus COLPODES Nobis. 

 Antenna articulo tertio elongato seu duorum priinorum simul sumptorum Iongitudine ; 



articulis tribus primis nitidis, reliquis pubescentibus. 

 Labrum transversum quadratum integrum. 

 Mandibulce elongatae trigonae, apice acutae incurvse. 



Palpi maxillares articulo tertio tenui obconico, quarto aequali cylindrico-ovali vix truncate. 

 Mentum sinu simplice. 

 Caput fere Iongitudine thoracis. Thorax obcordatus, antice emarginatus, postice truncatus, 



lateribus rotundatis baud sinuatis, marginibus subreflexis. Corpus convexiusculum 



elytris striatis postice sub- emarginatis. Peefesantici $ tarsorum articulis omnibus dila- 



tatis, penultimo bilobato lobo anteriore majore. 



Obs. This subgenus has some connexion with the genera Sphodrus and Anchomenus ; from the 

 former it may easily be distinguished by its thorax ; and from the latter by its antenna?. The 

 posterior sinuation of the elytra seems to indicate a relation to Catascopus. 



27. Brunxeus. C. atrobrunneus concolor nitidus orejerrugineo, antennis apice rubris, geniculis tarsisque piceis. 



Long. corp. 1 + 

 Caput laeve facie media elevata lateribusque rugosulis. Antennce articulis ultimis octo rubris pubescenti- 

 bus apice ciliatis. Thorax linea antica transversa, media longitudinali, fossulaque utrinque postica 

 impressus. Elytra stria suturali brevissima. 



Subgenus OMASEUS Zieg. 



Obs. The following species differs from the type of the subgenus which, according to German 

 catalogues, is the Carabus melanarius of Illiger, or C. leucophthalmus of Fabricius, in having the 

 last joint of the maxillary palpi securiform. I do not, however, think it necessary to separate it 

 generically from that insect. 



28. ViRioicoLLis. O. niger capite viridi: clypeo oreque nigris, thoraceviridi; margine nigro, elytris atropurpureii 



J Long. corp. 1 -fc 



D Genus 



