Capt. P. P. King's South American Coleoptera. 457 



*97. Passalus punctiger, Lep. ^ Serv. Percheron, Mon. p. 47. pi. 3. f. 6. 

 From Rio Janeiro. 



*98. Passalus incertus, Buquet? Guer. Mag. de Zool. 1841, p. 27. pi. TJ- f- 4. 

 From St. Paul's, Brazil. 



*99. Passalus transversus, Dalm. Perch. Mon. p. 94. pi. 7- f- 5. 

 From St. Paul's, Brazil. 



HETEROMERA. 



Melasoma. 



' Family Pimeliad^. 



100. Praocis rufipes, Esch. Zool. Atlas, pi. 14. f. 2. Voyage de la Coquille, 



pi. 4. f. 1. 

 In this specimen from Conception, the thighs and tibicE are pitchy. * 



*101. Praocis sub^nea, Erichs. Nov. Act. Acad. Nat. Cur. vol.xvi. Supp. p. 248. 

 Praocis submetallica, Guer. Mag. de Zool. 1834, pi. 105. f. 3 ? 



Large black specimens, as well as aeneous ones, were collected at Valparaiso ; these are fully 

 5 lines long, while the smaller males are 4 lines only. 



*102. Praocis LiEVicosTA, Curt. 



Obscur^ seneo-nigra, elytrorutn inargine inferiore baud punctulato, tarsis sub- 

 ferrugineis. 



Length 4| lines, breadth 2|. 



Dead-black, sometimes with an aeneous tinge above : clypeus emarginate and punctured : 

 thorax semiorbicular, anterior margin concave, hinder angles large and pointed : elytra 

 ovate, the surface not even, irregularly punctured, the margin keeled and terminating 

 in an obtuse point; the costa inflexed, broad and not punctured; scutel and keeled 

 margin whitish with shining hairs : tarsi more or less ferruginous. 



Several specimens from Valparaiso. 



Tlie example that I have received of P. Icevigata, Dejean, has the thorax 

 broader than the elytra, which taper to the apex, but the costal margin is 

 smooth in that species also. 



It is by no means easy to determine the species of Praocis, from many causes. 



3 o2 



