529 



the leaves unfold, and live unobserved for a week or so in I he young shoots 

 in the tree-tops, and when half-grown are seen crawling about the tree. 

 Toward the end of June they pupate, and in about a week after the moth 

 appears. It is very destructive on the elm in New York and Philadelphia. 



Eugonia alniaria Hiibner. Plate 12, fig. 28 ; plate 13, fig. 1 a, pupa. 



Plialana-Gmmetru alniaria Linn., Syst. Nat., edit, x, 019, 1758; Faun. Suec, 834, 1740. 

 " Gtometra iiliaria Borkh., Eur. Schni., v, 87, 1794." 

 Enijonia alniaria Hiibn., Verz., 291, 1818. 

 Ennomos tiliaria Treits., Scbiu. Eur., vi (ii), 295, 1828. 

 Dup., Lep. France, vii (w), 142, 1829. 

 Geometra alniaria Steph., Nomencl. Br, Ius., 43, 1829. 



Stepb., 111., i i, 104, 1831. 

 Ennomos tiliaria and alniaria Boisd., Gen. lud., 183, 1840. 

 Dup., Cat., 219, 1844. 

 H.-Sch., Schni. Eur., iii, 41, 1847. 

 Odoptera alniaria and tiliaria Stepb., Cat. Br. Lep., 105, 1850. 

 Ennomos maynaria Guen., Pbal., i, 174, 1857. 

 Ennomos alniaria Guen., Pbal., i, 175, 1857. 



Walk., List Lep. Het. Br. Mus., xx, 205, 1860. 

 Ennomos magnaria Walk., List Lep. Het. Br. Mus., xx, 209, 1860. 



Delicate ocher-yellow, with a reddish tinge toward the edge of the 

 wings, and on the head and front of the thorax. Fore wings with two lines, 

 often interrupted, or only developed on the costa; inner line on the inner 

 third of the wing; the curved outer line, beginning near the inner, diverges 

 and follows a sinuate course, ending much nearer the apex than the inner 

 line, the distance varying; both wings speckled, sometimes thickly, with 

 unusually large spots; outer edge of both wings deeply excavated, especially 

 opposite the second median venule. On the hind wings, no lines ; an obscure 

 discal dot centered with a short translucent line. Beneath, much as above, 

 but no lines, except in one case a diffuse dark line crosses the hind wings. 

 (The female differs in the usual characters of the dentated forms.) Fringe 

 dark, whitish in the notches on both wings. 



Length of body, <f , 0.80, 9, 0.65; of fore wing, <J, 0.90-1.08, 9, 0.95- 

 1.05; expanse of wings, 2.00-2.20 inches. 



Northern Maine and Brunswick (Packard) ; Portland, Me. (Morse) ; 

 Salem, Mass. (True and Emerton) ; Cambridge (Putnam) ; Albany, N. Y. 

 (Lintner and Meske) ; West. Farms, N. Y. (Angus) ; New Jersey (Sachs) ; 

 Saint Louis, Mo. (Riley) ; Montreal and Nova Scotia (Walker). 



The species varies considerably in the distance apart of the two lines 

 on the fore wings, and in the degree of spotting. Our specimens do not 

 apparently differ from European ones. 

 67 p h 



