‘ ANNULOSA JAVANICA. 27 
50. PremaBris. O. nigro-brunneus capite nigro, thorace sulco transverso postice impresso, elytris striis sub- 
punctatis. 
Long. corp. } + 
Caput nigrum labro palpisque piceis. Antenne pice, apice pilosule obscure. Thorax canaliculatus antice 
haud marginatus, duplo latior quam longus, lateribus subreflexis, quadré media impressa, angulis 
fossulatis. Elytra strid secunda ad scutellum brevi. Corpus subtus piceum. Pedes picei tibiis 
nigris. 
51. Braunnixasrrs. O. brunneus capite thoracis disco elytrorumque limbo nigris, thorace anchora dorsali 
impressa margineque pallido, elytris striato-punctatis. 
Long. corp. fere #5 
Caput labro palpis antennisque brunneis, his apice obscuris hirsutis. Thorax canaliculatus, 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 strits 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- 
liculatus duplo latior quam longus, fossula utrinque postice impressus. lytra strié secunda ad sen- 
tellum brevi cum prima confluente. Corpus subtus nigro-brunneum pedibus nigris. 
Oxs. 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. his P. duplicatus, P. acrogonus, and P. alternans. 
Plochionus, 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. Bonsfilsii of Dejean. 
Genus DRYPTA Fab. 
53. Lrvzoa. D. rufa elytris punctato-striatis pubescentibus : vittd media rufa, pedibus rufo-testaceis ; geniculis 
pices. 
An Drypta lineola, Meg. apud Dej. Catal. p. 2.? 
Long. corp. $s 
Caput rufum convexum punctatum oculis albis, mandibulis maxillisque apice piceis, palporum maxillarium 
ruforum articulo ultimo ovato. Antenne rufe articulo secundo longissimo apice piceo. Thorac 
punctatus subcylindricus haud capite longior, truncato-obcordatus, postice marginatus, medio canali- 
culatus. Elytra apice vix truncata nigra, striis decem, scutellari brevissima, vittaque media longitu- 
dinali rufa haud basin sed suturam ad apicem attingente. Abdomen subtus atro-viride. 
Ors. 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 tu assign distinct specific characters to them. A 
New Holland Drypta, which I have named “ dustralis,” differs also from the above only in 
having 
E 2 
