l6o NEW YORK STATE MUSEUM 



Tischeria malifoliella (Clemens). 



The A^ple Leaf Miner. 

 (Ord. Lepidoptera: Fam. Tineid^.) 



Clemens: in Proc. Acad. Nat. Sci. Phila., i860, xii, p. 208; Tineina 

 N. A., 1872, pp. 141-142 (brief descr. of larva, mine, and 

 imago). 



Chambers: in Canad. Entomol., iii, 1871, p. 208 (food-plants); Tin. 

 U. S.-Can., in Bull. G.-G. Surv., iv, 1878, p. 165; in Canad. En- 

 tomol., V, 1873, p. 50; in id., vi, 1874, p. 150; in Gin. Quart. 

 Journ. Sci., ii, 1875, p. iii ; in Psyche, iii, 1880, p. 68. 



Frey-Boll: in Stett. Ent. Zeit., xxxiv, 1873, p. 222 (occurrence in 

 Germany). 



Packard: in Bull. 7 U. S. Ent. Comm., 1881, p. 136 (mine and food- 

 plants). 



Lintner: ist Rept. Ins. N. Y., 1882, p. 330; Rept. to Regents for 1886 

 [Third Rept. Ins. N. Y.], in 40th Rept. N. Y. St. Mus. N. H., 

 1887, p. 137; 7th Rept. Ins. N. Y., 1891, p. 354; in Count. 

 Gent., Ivii, 1892, p. 809 (mines, distribution, remedies). 



Brunn: in 2d Rept. Dept. Entomol. Cornell Univ., 1883, pp. 155-157, 

 pi. 6, figs, i-i d (life-history, etc.). 



Saunders: Ins. Inj. Fruits, 1883 and 1889, pp. 114-115 (brief notice). 



Weed : in 15th Rept. Ins. 111., 1889, pp. 45-50, figs, i-i d on p. 45 (Htera- 

 ture, description, distribution, life-history, parasites, remedies). 



Walsingham: in Insect Life, ii, 1890, p. 326 (in Texas). 



A box of apple leaves, sent from Schenectady, N. Y., to show the 

 condition of the foHage of an orchard in early autumn, was received dur- 

 ing the last of September. A similar condition of the leaves had been 

 observed in August of the preceding year. 



The Insect. 



The leaves had been extensively mined by the caterpillar of a Tineid 

 moth, known as Tischeria fiialifoliella . The winged insect is a small 

 creature, as are most of the Tineidae, measuring only across its spread 

 wings, about one-fourth of an inch. The front wings are of a brilliant 

 dark brown color, shaded with purple and sprinkled with numerous 

 yellowish dots : the hind wings are dark gray. The full-grown cater- 

 pillar measures two-tenths of an inch in length. Its head is black or 

 dark brown, circular, flat, and nearly as broad as the first segment; its 

 body pale green with a green dorsal stripe (with the exception of the first 

 segment, which is brownish), broad anteriorily and tapering slightly toward 

 the end. The several segments are so deeply cut (more so than in the 

 figure cited) as to give almost the appearance of a series of connected 

 balls. 



