Mesoupiialia. 269 



(line postica pliis cluplo hrevior, apice late, leviter ro- 

 tutulato-emarginatus, latcribus tenuiter reflexo-marginatis, 

 longe ullra medium ohlique ampliatis, dein suh-reclis; 

 postice utrinque suh-truncatus, loho medio modice pro- 

 minulo, apice rotundato, angulis lectis; supra suhtilis- 

 sime, remote punctulatus, ohscure seneus, opacus, dorso 

 paullo convexus, medio canalicula tenui , antice ahhre- 

 viata insculptus, extrorsum cxplanatus. Scutellum trian- 

 gulare, loeve, seneum , suh-opacum. Elytra prolliorace 

 triplo longiora, antice singulatim vix sinuata , luox ad 

 hasin suhito valde lotundato-ampliata , a medio sensim 

 rotundato-angustata , apice conjunctim late rotundala, su- 

 pra piieserlim in dorso antico convexa, ihique in gihhuui 

 hrevem, validum, ohtusum elevata, ohscure oenea , opaca , 

 ohsolete, remole punctulata , crehre, irregulariter reticu- 

 lata, reticulo modice elevato, tonui, nitido, areolas inoe- 

 (juales, parvas includente; margine sat late explanato, 

 nonniliil deflexo, suhtiliter, suh-remote punctulato, intus 

 in medio reticulato, suhtus coeruleo-virescente. Corpus 

 suhtus suhtiliter, transversim striolatum, viridi-coeruleum , 

 nilidum. Pedes remote punctulafi, similiter colorati. 



44. Silbermanni : {Ckexko^..) ovata , convexa, supra icnea, 

 suh-nitida, suhtus cuprea, nitidaj prothorace suhlilis- 

 sime, suh-remote punctulato, laterihus longe ultra me- 

 dium ohlique ampliato, dein suh-rotundato; elytris re- 

 mote, mediocritei- punctatis, undique conrertim, irre- 

 gularifer reticulatis, reticulo tenui, modice elevato, 

 nitido, areolas luediocres includente; dorso antico valde 

 elevatis, hreviler, ohtuse gihhosis; margine minus dila- 

 tato, deHexo; humeris rotundatis. — Long. 13^, lat. 

 10 millim. 



Patria: Cuenos Ayres, AIus. Dom. Chevrolat. 



Magnitudo fere et similitudo M. festiviv , eljtris 

 dorso antico magis elevalis, ohtuse gihhosis, areolis e 

 reticulo inclusis minorihus, evidenter punctulatis, lateri- 

 hus medio niagis ampliatis, apicem versus atteruiatis, ah 

 illa diflfert. Capuf suhtiliter, crehre punctulatum, aene- 



