Twelfth Keport of the State Entomologist 243 



Saperda tridentata Olivier. 



The Elm Borer. 



(Ord.' CoLEOPTERA : Fam. Cerambycid.^.) 



Fitch: in Trans. N. Y. St. Agricul. Soc. for 1858, 1859, pp. S39-840 



(brief account); 5th Rept. Nox. Other Ins. N. Y., 1859, pp. 



59-60 (the same). 

 Harris: Ins. Inj. Veg., 1862, pp. 111-T13, PI. II, fig. 13 (description 



and ravages). 

 Packard: in Amer. Nat., iv, 1870, pp. 588-591, figs. 115, 116 (general 



account after Harris, as Cofupsidea tridentata); Bui. 7 U. S. 



Entomol. Comm., 1881, pp. 58-59, fig. 17 (brief account); 



5th Rept. do., 1890, ])p. 224-226, fig, 71 (general account), p. 



424 (infesting maple). 

 Hubbard: in Psyche, i, 1874, p. 5 (mention); in id., ii, 1877, P- 4° 



(mention, as 6". trinlieata). 

 LeConte : in Smith. Misc. Coll., xi, 1874, pp. 238-239 (table of species 



of Saperda). 

 Thomas: 6th Rept. Ins. Ill, 1877, pp. 38, 44, 156-157, ii (brief notice). 

 Zesch-Reinecke : List. Coieopt. Buffalo and Vicin., 1880, p. x. 

 Harrington: in Canad. Entomol., xv, 1883, p. 79 (infesting maple); 



the same in 14th Rept. Entomol. Soc, Ont., 1884, p. 35 ; in 



Canad. Entomol., xxii, 1890, p. 186 (listed from the counties of 



Argenteuil and Ottawa). 

 Forbes: 14th Rept. Ins. 111., 1885, pp. 112-114, PI. xii, fig. 2 (general 



account of ravages, remedy). 

 Smith: Cat. Ins. N. J., 1890, p. 212 (common at Newark, Caldwell). 

 Caulfield: in 21st Ann. Rept. Entomol. Soc. Ont., 1891, pp. 73-74 



(brief account). 

 Garman : Bull. 47 Ky. Agricul. Expt. Stat., 1893, pp. 44-50, figs. 12, 



13 (general account); the same in 6th Rept. do., 1894, pp. 



122-127, fi?J^- ^^1 ^3- 

 LiNTNER : in Proc. West. N. Y. Horticul. Soc, 1893, separate, pp. 7-9 



(ravages, remedies) ; repubhshed in Gard. Forest, vi, 1893, p, 



76, and in 9th Rept, Ins, N. Y., 1893. pp. 427-429; in Albany 



Evening Journ., for May 7, 1894 (work in Albany, remedies) ; 



loth Rept. Ins. N. Y., 1895, pp. 484, 485, 499 (abstracts of 



preceding notices); in Country Gentleman, Ixi, 1896, p. 746 



(remedies). 



This insect appears to be as injurious to the beautiful white elm, Ubnus 

 Americana, which has been so liberally planted and is so highly prized as 

 our most valuable shade-tree, as the maple borer, P/agionotus speciosus, is 

 to the very desirable sugar maple. The borers in the wood and bark 

 of our trees are dreaded most deservedly, not only on account of their 

 ofttimes excessive injuries, but for the reason that their operations are of 

 such a nature that severe damage, if not fatal injury, is often done before 

 their presence is even suspected. The unthrifty condition of the infested 



