22 THE CANADIAN ENTOMOLOGIST. 



according to Eichhoff', was in use in Europe over fifty years before it was 

 determined that Say's name had priority. Schwarz*^ had previously called 

 attention to the probable priority of Say's name, and the confusion with 

 reference to Say's description of the insect and galleries. The writer'' 

 also referred to its identity with saxeseni in 1893, and published brief 

 descriptions of the male in 1894"'. This, with descriptions and notes by 

 Zimmermann and Leconte', and the publications previously cited, includes 

 about all of the literature in this country, but in Europe the literature is 

 more voluminous and includes, under the synonym X. saxesefii, quite full 

 accounts of its habits and distribution. 



Geographical Distribution and Host Plants. 



According to Eichhoff the distribution of this species extends over 

 " the greater part of Europe, Canary Islands, Japan {?), and North 

 America." The species is evidently indigenous to Central Europe, or 

 wherever it infests the greatest variety of trees. Its recent or remote 

 introduction into any country will probably be indicated by its preference 

 for certain introduced or ornamental trees, and the extent to which it has 

 acquired the habit of infesting indigenous trees. 



In Europe, Eichhoff and other observers found that it not only 

 infested the wood of oak, beech, birch, maple, poplar, linden, fruit, and 

 other deciduous trees, but that different conifers were also attacked by it. 

 Hubbard mentions that " it appears to be partial to rather hard wood, 

 like oak, hickory, birch and maple, and is found wherever these trees grow, 

 both in this country and Europe." The results of my observations here in 

 West Virginia would indicate that it is confined almost exclusively to fruit 

 trees, especially to the wood of the apple, in which I have found it to be 

 exceedingly common in the vicinity of Morgantown. In my extended 



6. Ratzburg Forstein, 1837, Vol. I., p. 168. 



7. Letter from \V. Eichhoff to Dr. C. V. Riley in 1892, published in Proc. U. S. 

 Nat. Museum, Ibid p. 609, from which we quote the following : " There cannot be the 

 slightest doubt that the species you sent me as Xyleborus xylograp/ms. Say . . is 

 identical with the European X. saxeseni, Ratzburg It is certainly remarkable that 

 this synonymy comes to light only now, and that Ratzburg's name has to be suppressed 

 after it has been in use for more than fifty years. X, finj, Eich., must now again take 

 its rank as a distinct species." 



8. Ento. Amer. II., p. 41. 



9. Bull. 31, W. Va. Agr. Expt. Station, p. 136. 



10. Sexual Characters in Scolylidse, Can. Ent., Vol XXVI., p. 279. The male 

 had been previously described by Wisemann, Stett. Ent. Zeit., 1846, p. 24. 



I. Traqs. Amer. lint. So., Sep. 1868, p, 143 aqd 160. 



