50 



Ips. 



var. trepanafus Nördl. Nachträge 1856, p. '^3. 



var. coniunctus Reitt. Wien. Ent. Zeit. VI, 1887, 



p. 196. — Tredl, Ent. Blatt. III, 1907, p. 15. 

 Biologie: Eichhoff, Zeitschr. f. Forst- und Jagd- 

 wesen XV, 188:^, p. 219. — Fankhauser jr., 



Forstl. Insektenkunde, in: Prakt. Forstwirt, f. 



d. Schweiz XIX, 1884, p. 1. — Keller, Oestr. 



Forstztg. VIII, 1890, p. 267. — Schewyrew, 



Forstjournal 1905, No. 6—8, p. 90. 

 Bonanseai Hopk. Proc. Ent. Soc. Wash. VII, 1905, p. 76 Mexiko 



(Ips i. sp.). 

 caelatus Eichh. Berl. Ent. Zeitschr. XI, 1867, p. 402 Canada, 



{Ips s. str.). Vereinigte 



Tomicus caelatus Eichh. 1. c; Rat. Tom. 1879, Staatenvon 



p. 274. — Hopkins, Canad. Ent. XXVI, 1894, Nord- 



p. 280. — Schwarz, Proc. Ent. Soc. Wash. III, Amerika 



1894, p. 16, 27. 

 Xyleborus caelatus Zimm. Trans. Am. Ent. 



Soc. II, 1868, p. 146. — Lee. Proc. Am. Philos. 



Soc. XV, 1876, p. 359. — Schwarz, Ent. Am. 



II, 1886, p. 41. — Hamilton, Trans. Am. Ent. 



Soc. XXH, 1895, p. 846, 878. 

 Ips caelatus Smith, Cat. Ins. N. J. 1900, p. 368. 

 Xyleborus vicimis Lee. Trans. Am. Ent. Soc. 



V, 1874, p. 72. 

 Tomicus xylographus Fitch, Nox. Ins. N. York 



Rep. IV, 1858, p. 716. — Schwarz, Ent. Am. 



n, 1886, p. 41. 

 Biologie: Packard, U. St. Ent. Comm. Rep. V, 



1890, p. 706, 710, 812, 825. — Hopkins, W. Va. 



Agric. Exp. Sta. Bull. 31, p. 139; Bull. 32, 1893, 



p. 212; Bull. 56, 1899, p. 258, 342, 446; U. St. 



Div. Ent. Bull. 32, lü02, p. 12. — Feit, N. Y. 



Forest, Fish and Game Comm. Report VH, 1901, 



p. 488; N. Y. State Mus. Mem. VHI, 1906, 



p. 338. — Schwarz, Proc. Ent. Soc. Wash. I. 



1888, p. 47. 

 calllgraphus Germar, Ins. Spec. Nov. 1824, p. 461 Nord- 



(Ips s. str.). Amerika 



Bostrichus Germ. 1. c. 

 Tomicus calligraphus Fitch, Nox. Ins. N. York, 



Rep. rV, 1858, p. 721. — Lee. Proc. Am. Phil. 



Soc. XV, 1876, p. 363. — Eichh. Rat. Tom. 



1879, p. 224. — Schwarz, Proc. Ent. Soc. Wash. 



I, 1888, p. 80. 

 Ijis calligraj^hus Smith, Cat. Ins. N. J. 1900, 



p. 363. — Swaine, Cat. Scol. N. Am. 1909, p. 120. 

 Bostrichus chloroticus Dej. Cat. 1837, p. 232. 

 Bostrichus conformis Dej. 1. c. 

 Bostrichus exesus Say, Journ. Ac. Nat. Sei. 



Phil. V, 1826, p. 255. ~ Harris, Ins. Mass. 



1841, p. 74. — Zimm. Trans. Am. Ent. Soc. II, 



1868, p. 147. 

 Tomicus praemorsus Eichh. Berl. Ent. Zeitschr. 



XI, 1867, p. 401. — Rat. Tom. 1879, p. 224. 

 Biologie: Packard, U. St. Ent. Comm. Rep. V, 



1890, p. 711. — Hopkins, W. Va. Agric. Exp. 



Sta. Bull. 31, p. 188; Bull. 82, 1893, p. 212: 



Bull 56, 1899, p. 422; U. St. Div. Ent. Bull. 



