234 Forty-second Report on the State Museum. 



Galeruca xanthomelsena (Schrank). 



The Elm-leaf Beetle. 



(Ord. Coleoptera: Fam. Chrysomelid^e.) 



Linn^us: Syst. Nat., ii, 1767, p. 600, No. 101 (Chrysomela Calmariensis.) 



Fabricius: Syst. Ent., 1775, p. 119, No. 4 {Crioceris Calmariensis); Spec. 

 Ins., i, 1781, p. 150, No. 6 ; Mant. Ins., i, 1787, p. 87, No. 7 ; Ent. Syst., 

 i, pt. ii, 1792, p. 23, No. 46 (Galleruca Calmariensis). 



Schrank : Enumeratio Insectorurn Austrian indigenorum, 1781, p. 78. 



Olivier : Encyc. Method.— Hist. Nat. Ins., vi, 1791, p. 589 (as Galeruca cal- 

 mariensis). 



Westwood : Introduc. Classif. Ins., 1839, p. 382 (destructiveness iD Sevres). 

 Harris : Treat, Ins. N. Eng., 1852, p. 109; Ins. Inj. Veg., 1862, p. 124 {Gale- 

 ruca Col.). 



Emmons: in Nat. Hist. N. Y.— Agricul., iv, 1854, p. 134, pi. 12, f. 12. 



Fitch : in Trans. N. Y. St. Agr. Soc. for 1858, xviii, 1859, p. 842-3 ; 3d-5th 



Kepts. Ins. N. Y. (5th Kept.), 1859, p. 62-3. 

 LeConte: in Proc. Acad. Nat. Sci. Phil, for 1865, p. 218 (features and 



references). 



Glover : in Kept. Commis. Agr. for 1867, p. 62 (br. ref. and fig.) ; id. for 

 1870, p. 73. 



Eathvon : in Field and Forest, ii. 1876, pp. 96-98 (at Lancaster, Pa.). 

 Riley : in Kept. Comm. Agricul. for 1878, p. 245 (br. ref .) ; in Amer. Ento- 



mol., iii, 1880, p. 291 (natural history, enemies, etci); in Ann. Kept. 



Comm. Agricul. for 1883, pp. 159-170, pi. 12, f . 3 (full account) ; same, 



repub. as Bull. No. 6, U. S. Dept. Agricul., Divis. of Ent., 1885 ; 



same, in Bull. No. 10 id., 1887, pp. 8-22, figs. 1-6. 

 Fuller : in Amer. Entomol., iii, 1880, p. 3 (at Newburgh, N. Y.). 

 Lockwood : in Amer. Nat., xv, 1881, pp. 242-244 (hibernation) ; in Bull. No. 



4, U. S. Dept. Agr., Div. Entomol., 1884, p. 90 (ravages at Freehold, 



N. J.). 



Packard: Ins. Inj. For.-Sh. Trees, in Bull. No. 7, U. S. Ent. Commis., 



1881, p. 64 (brief description). 

 Lintner: in Count. Gent., xlvii, 1882, p. 805; id,, 1. 1885, p. 841 (remedies, 



etc.); in Canad. Entomol., xvi, 1884, p. 183 (reference) ; in Count. 



Gent., Ii, 1886, p. 409 (bibliography, etc.) : Iii, 1887, pp. 421, 565, 695 



(spraying for); 4th Kept. Ins. N. Y., 1888, pp. 15, 143, 161, fig. 59 



^extension of range). 

 Van Wagenen: in Canad. Entomol., xv, 1883, p. 160 (abundance at Cold 



Spring, N. Y.). 



Clarkson: in Canad. Entomol., xvi, 1884, p. 124 (at Flatbush, L. I.). 

 Henshaw : in Cassino's Stand. Nat. Hist., ii, 1884, p. 316 (its enemies, etc.) ; 



List Coleop. N. Amer., 1885, p. Ill, No. 6912. 

 Cook: in Rur. N. Yorker, xlv, 1886, p. 577 (general notice). 

 Dyar : in Insect Life, i, 1889, p. 285 (at Poughkeepsie). 



This destructive insect pest, which within the last few years has 

 extended its ravages into the State of New York, entering it from the 

 south and spreading northward with a steady progress that threatens 

 to carry it to the northern borders of the State, and even beyond, is 

 one of the many injurious species which Europe has contributed to 



