5 1 2 Gexls 566. — PIAZLTxCS. 



nigri , in fronte valde approximaii; rostrum capiie cum tliorace 

 longius , validum , arcuatuin , inilexum , hasi suiülato-riigosum , 

 medio leviter carinatum , silaceo-scjuamosuui , dein extrorsum 

 subtiliter punctulatum , nitidum, glabrum, totum nigrum. An- 

 tennae sub-tenues, ferruginetej clava oblongo-ovata, acuminata, 

 obscui'ioii , densius pubesccnte. Thorax sub-tiiangularis, latitu- 

 dine postica brcvior, apice utrinque leviter emarginatus , intra 

 apicem leviter constriclus, lateribus obliquis, versus basin am- 

 pliatis; postice sat profunde bi-sinuatus , supra modice convexus , 

 subtiliter confertim coriaceus, dorso carinula brevi, tenui, an- 

 tice posliceque abbreviata instructus, ante scutellum foveola sat 

 magna, rotunda insculptus ; niger, sub-nitidus, squamulis par- 

 vis, cinereis inaequaliter adspersus. Scutellum sub -cordiforme, 

 punctulatum, nigrum, sub-nitidum, parce cinereo-squamulosum. 

 Elytra sub-triangularia , antice tri-sinuata, thoracis basi dimidio 

 laliora, humeris vix elevatis, obtuse rotundatis; lateribus a basi 

 apicem versus sensim angustata, apice ipso conjunctim leviter 

 emarginata, vix acuminata, thorace fere triplo longiora, supra in 

 dorso parum convexa, sub-remote evidenter punctato-striata , in- 

 terstitiis sub-convexis , subtilissime confertim coriaceis; nigra, 

 sub-nilida, squamulis cinereis obsita, dorso remote parce atro- 

 variegata. Corpus subtus obsolete punctulatum, nigrum, nitidum, 

 lutescenti-S([uamosum, medio denudatum, abdomine basi pro- 

 funde longitudinaliter impresso. Pcdes validi, obsolete punctulaii, 

 nigri, squamulis silaceis obsiti; femoribus omnibus, pra'sertim 

 posticis, clavatis, subtus dente valido, acute armatis; tibiisrectis; 

 tarsis angustis, ferrugineis, subtus brunneo-spongiosis. — Bhn. 



* i3. P. Plecronectes. Fabr. — //. op. IV. p. 664. 12.— -P. Amcr. 



mcridionalis. 



14. P. MELAXOSTicTus. Clievr. — //. op. IV. p. 665. i3. — 



P. Caycnna. 



Centuria II. — Corpus supra convcxum. (Spec. i5.-i6.) 



* i5. P. oBESüs. Sclili. — II. op. IV. p. G66. i4. — P- Brasilia. 



* 16. P. DEFECTor.. ScIili. — //. op. IV. p. 667. i5. — P. Brasilia. 



Sturm, Catal. i843. p. 224. 



Piazurus costalopunctaltts . Dejean. CalaL ed. 2. p. 3oo. ed. 3. 

 p. 325. 



