no. 20G6. LIST OF TYPE-SPECIES OF SCOLYTOIDEA— HOPKINS. 131 



Tomicus Latreille. 



Hist. Nat. Crust, et Ins., vol. 3, 1802, p. 203. 



Type. — Hylesinus piniperda Fabricius (= Dermestes piniperda Linnaeus). Mono- 

 basic. 



Europe. 

 Triarmocerus Eichhoff. 



Ratio Tom., 1879, p. 119. 



Type. — Triarmocerus cryphaloides Eichhopf. Monobasic. 



Madagascar. 

 Tricolus Blandford. 



Biol. Centr.-Amer., Coleop., vol. 4, pt. 6, June, 1905, p. 286. Two species. 



Type. — Tricolus ovicollis Blandford. 



Guatemala. 

 Trigonogenius Hagedorn. 



Deutsche Ent. Zeitschr., 1912, p. 354. 



Type. — Trigonogenius fallox Hagedorn. Monobasic. 



German East Africa. 

 Triotemnus Woliaston. 



Cat. Canar. Coleop, 1864, p. 264. 



Type. — Triotemnus subretusus Wollaston. Monobasic. 



Gomera. 

 Trypocranus Eichhoff. 



Ratio Tom., 1879, p. 435. 



Type. — Trypocranus cincinnatus Eichhoff. Monobasic. 



Bogota. 

 Trypodendron Stephens. 



111. Brit. Ent., vol. 3, 1830, p. 353. Two species. 



Type. — Dermestes domesticum Linn,eus (Westwood, 1840; Thomson, 1859). 



North and Middle Europe. 

 Trypophloeus Fairmaire. 



Genera Coleop. Europe, vol. 4, 1868, p. 105. 



Type. — Bostrichus binodulus Ratzeburg. Monobasic. 

 Xestips Hagedorn. 



Deutsche Ent. Zeitschr., 1912, p. 353. 



Type. — Xestips marginatum Hagedorn. Monobasic. 



East Africa. 

 Xyleborus Eichhoff. 



Berlin. Ent. Zeitschr., vol. 8, 1864, p. 37. Six species. 



Type. — Bostrichus monographus Fabricius. 



Germany. 

 Xylechinites Hagedorn. 



Schr. Phys.-Oekon. Ges., Konigsberg, vol. 47, 1906, p. 120. 



Type. — Xylechinites anceps Hagedorn. Monobasic. 



East Prussia. 

 Xylechinus Chapuis. 



Synops. Scol., 1869, p. 36; 1873, p. 244. 



Type. — Dendroctonus pilosus Knoch (not Ratzeburg). Monobasic, 



Middle Europe. 

 Xylocleptes Ferrari. 



Borkenkafer, 1867, p. 37. 



Type. — Bostrichus bispinus Duftschmidt. Monobasic. 



Europe. 



