128 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.48. 



Polygraphus Erichson. 



Archiv f iir Naturgesch, Jahrg. 2, vol. 1, 1836, p. 57. 



Type. — Hylesinus pubescens Fabricius (—Dermestes polygraphias Linnaeus). 

 Monobasic. 



Europe. 

 Premnobius Eichhoff. 



Ratio Tom., 1879, p. 404. 



Type. — Premnobius cavipennis Eichhoff. Monobasic. 



Middle Africa. 

 Prionoceles Blandford. 



Biol. Centr.-Amer., Coleop., vol. 4, p. 6, Dec, 1897, p. 177. Two species. 



Type. — Prionoceles atratus Blandford. 



Guatemala. 

 Problechilus Eichhoff. 



Ratio Tom., 1879, p. 167. Two species. 



Type. — Gymnochilus zonatus Eichhoff. 



Colombia. 

 Progenia s Blandford. 



Ann. Soc. Ent., France, vol. 45, 1896, p. 20. Two species. 



Type. — Progenius fleutiauxi Blandford. 



Indo-China. 

 Pseudocorthylus Ferrari. 



Borkenkafer, 1867, p. 59. Four species. 



Type. — Pseudocorthylus letzneri Ferrari. 



Venezuela. 

 Pseudopolygraphus Seitner. 



Centralblatt fur das gesammte Forstwesen, Jahrg. 37, No. 3, 1911, p. 100. Two 

 species. 



Type. — Polygraphus grandiclava Thomson. 



Europe. 

 Pseudothamnurgus Eggers. 



Ent. Blatt., Jahrg. 8, 1912, p. 115. Three species. 



Type. — Dryocoetes mediterraneus Eggers. 



Middle Europe. 

 Pteleobius Bedel. 



Faune Coleop. du Bassin de la Seine, 1888, p. 411. Two species. 



Type. — Bostrichus vittatus Fabricius. 



Locality unknown. 

 Pterocyclon Eichhoff. 



Berlin. Ent. Zeitschr., vol. 12, 1868, p. 277. Fifteen species. 



Type. — Pterocyclon laterale Eichhoff. 



Mexico. 

 Pycnarthrum Eichhoff. 



Ratio Tom., 1879, p. 104. Two species. 



Type. — Pycnarthrum gracile Eichhoff. 



Cuba. 

 Renocis Casey. 



Bull. Cal. Acad. Sci., vol. 2, 1886, p. 257. 



Type. — Renocis heterodoxus Casey. Monobasic. 



Nevada. 

 Rhopalopleurus Chapuis. 



Synops. Scol., 1869, p. 46; 1873, p. 254. 



Type. — Rhopalopleurus tuberculatum Chapuis. Monobasic. 



New Granada. 



