( 593 ) 



oculis fortiter convexis, supra levissime convergentibus ; fronte lateraliter incouspitue 

 carinata. Antennae prothoracis basim attingentes. Prothorax latitudine baud longior, 

 lateribus antrorsum subrotundato-attenuatus, disco rugatus, late impressus, medio 

 transverse elevatus, linea mediana longitudiuali etiam parum elevata ; carina dorsali 

 recta, medio miuime interrupta, lateraliter sat abrupte antrorsum flexa. Scutellum 

 subcirculare. Elytra convexa, postice fortiter rotundato-declivia, caUo nullo, juxta 

 suturam longiti-orsum anguste leviter impressa, fortiter seriatim punctata, margine 

 antico punctorum elevato, dimidio Ijasali transverse rugata. 



Prosternum medio impressionibus parvis rude, ante coxarum cavitates profunde 

 transverse sulcatum. Processus metasternalis intra coxas intermedias transverse 

 plicatus. Abdominis segmentum idtimum apice emarginato-truncatum. Tarsorum 

 articulus primus elongatus; femora postica abdominis segment! quarti basim 

 attingentia. 



Long. 1.3 mm., rostr. 2, elytr. !), lat. 5. 



Allied in shape of the elytra to P. virldanun Schuuli., but different from that 

 species in colour, in structure of prothorax and elytra, and in the slenderer antennae. 



Hab. Para. N. Brazil. 



-t. Ptychoderes afl&nis sp. nov. 



J. P. niger ; infra albo-luteo-tomeritosus, prosterno medio nigro, feniorihus 

 uni-, tibiis bi-, nigro-annulatis ; supra rostro, capite, prothorace disco, elvtris parte 

 depressa suturali luteo-griseo-tomentosis, lateribus fuscis, prothorace basi utrimque 

 macula elongata nigra, colore luteo-griseo dorsi magis quam in P. obsoleto Jek. 

 determinata ; occipite utrimque linea nigra notato. 



liostrum robustum, latitudine ba^ali jilus duplo longius. Cajiut fi'oute lata leviter 

 tricarinata, vertice pone oculos punctato, infia sparsissime punctulatum atque ante 

 prosternum dense transverse punctulato-rugulosum. Antennae corjjori fere aequales, 

 articulo tertio arcuato, ultimo lireviore quam in P. obsoleto. Prothorax longitudine 

 quinta parte angustior, retrorsum dilatatus, lateribus medio inconspicue sinuatus, 

 carina dorsali fortiter biarcuata, versus latera subangulata, dein semicirculariter 

 versus apicem ascendents, in medio laterum parum curvata; disco longitrorsum 

 late profunde impresso, sed in medio transverse elevato, baud rugato. .Scutellum 

 parum transversum, rectangulare. Elytra convexa, ad suturam longitrorsum sat 

 anguste impressa, aiiice rotundato-declivia, non tuberculata, basi fortiter reflexo- 

 marginata, juxta humeros impressa, seriatim punctata, striis in dorso levissime im- 

 pressis, punctorum margine antico in basi inconspicue elevato. 



Prosternum punctis singulis grossis, ante coxas utrimque impressione levissima 

 arcuata instructum. Abdomen (cJ) in medio segmenti primi gutta rotunda olivaceo- 

 pubescente notatum. Femora postica abdominis segmenti tertii medium attingentia. 



Long. 20 mm., rostr. 3i, elytr. 13, lat. 6. 



Front of the head broader than in P. ohsoleliiM .lekel (Ins. Saund., i., p. Gl, 

 18.55), to which the new species is allied ; prothorax a little longer than in that 

 species, its discal impression deeper, chiefly the anterior part of the impression, disc 

 without transverse folds ; elytra more convex, their apex strongly rounded-declivous, 

 not tubercled ; structure much feebler; [irosteinum with a few punctures in the 

 middle, not punctate-rugate, as in P. obsoletus. 



Hab. Brazil. 



