ANNULOSA JAVAN1CA. 27 



50. Picilabris. 0. nigro-brunneus capite nigro, tkorace sulco transverso postice impresso, elytris striis sub- 



punctatis. 



Long. corp. § + 

 Caput nigrum Iabro palpisque piceis. Antenna piceae, apice pilosulse obscuree. Thorax canaliculars antice 

 haud marginatus, duplo latior quam longus, lateribus subreflexis, quadra media impressa, angulis 

 fossulatis. Elytra stria secunda ad scutellum brevi. Corpus subtus piceum. Pedes picei tibiis 

 nigris. 



51. Bsunnjlabbis. O. brunneus capite thoracis disco elytrorumque limbo nigris, thorace anchora dorsali 



impressa mar gineque ■pallida, elytris striato-punctatis. 



Long. corp. fere & 

 Caput labro palpis antennisque brunneis, his apice obscuris hirsutis. Thorax canaliculars, duplo latior 

 quam longus, fossula utrinque postice impressus. Elytra stria prima et secunda ad scutellum brevi 

 confluentibus. Corpus subtus brunneum. Pedes nigriusculi femoribus brunneis. 



52. Alternans. O. niger thorace sulco transverso postice impresso, elytris striis vix geminatis, interstitiis alterna- 



tim punctulatis. 



Plochionus alternans, Wiedemann, Zool. Mag. Band. 11. s. 1. p. 52. 

 Long. corp. | + 

 Caput palpis brunneis labro antennisque nigris, his apice pubescentibus. Thorax antice marginatus cana- 

 liculars duplo latior quam longus, fossula utrinque postice impressus. Elytra stria secunda ad sen- 

 tellum brevi cum prima confluente. Corpus subtus nigro-brunneum pedibus nigris. 



Obs. The above-mentioned three species come very near to the genus Plochionus of Dejean, 

 and accordingly Wiedemann appears to have referred all the species of the genus Orthogonius 

 with which he was acquainted, to Plochionus, viz. hisP. duplicatus, P. acrogonus, and P. alternans. 

 Plochiomts, however, has a more western geographical situation, no species being, to my know- 

 ledge, found farther east than Bordeaux, while America appears the metropolis of the genus. 

 Some species of the genus Plochionus may be expected to occur in the south of England or 

 Ireland, particularly the P. Bonsjilsii of Dejean. 



Genus DRYPTA Fab. 



53. Lineola. D. rufa elytris punctatostriatis pubescentibus : vitta media rufa, pedibus nifo-testaceit ; genitalis 



piceis. 



An Drypta lineola, Meg. apud Dej. Catal. p. 2. ? 



Long. corp. & 

 Caput rufum convexum punctatum oculis albis, mandibulis maxillisque apice piceis, palporum maxillarium 

 ruforum articulo ultimo ovato. Antenna rufae articulo secundo longissimo apice piceo. Thorax 

 punctatus subcylindricus haud capite longior, truncato-obcordatus, postice marginatus, medio canali- 

 culars. Elytra apice vix truncata nigra, striis decern, scutellari brevissima, vittaque media longitu- 

 dinali rufa haud basin sed suturam ad apicem attingente. Abdomen subtus atro-viride. 



Obs. This species varies, or at least the D. lineola which comes from the continent of India 

 is so near to it, that it is scarcely possible to assign distinct specific characters to them. A 

 New Holland Drypta, which I have named " Australis," differs also from the above only in 



having 



E 2 



