49 



This pupa is easily distinguished from that of Ornix geminatella 

 by the horn-like projections of the head, the shorter antennal 

 sheaths, and the row of tubercles on the last abdominal segment. 



Imago. — "Head and antennae shining dark brown, face ochreous. 

 Fore wings uniform, shiniug dark brown with a purplish tinge, 

 slightly dusted with pale ochreous; cilia of the general hue. Hind 

 wings dark gray; cilia with a rufous tinge." — Clemens {I. c. ). 



The alar expanse is 7.5 mm. (.3 in.). 



DISTRIBUTION. 



I find that this species is very generally distributed throughout 

 Illinois, beiug common in nearly all the nurseries and orchards 

 examined during the past season. The specimens originally de- 

 scribed by Dr. Clemens were presumably from Pennsylvania, and 

 those bred by Mr. Chambers were probably found at Covington, 

 Kentucky. Mr. Brunn reports it common at Ithaca, N. Y. Hence 

 I believe that the following list includes all the American locali- 

 ties in which the species has as yet been recognized, though there 

 is little doubt that it is found over a large portion of the states 

 between and adjacent to the ones named: 



Illinois. — Bond, Champaign, Crawford, Edwards, Effingham, 

 JacksoD, Jetferson, Marion, McLean, Monroe, Randolph, St. Clair, 

 and Washington counties. (Weed). 



Kentucky. — Kenton, Co. (Chambers). 



Michigan. — Ingham Co. (Weed). 



New York. — Tompkins Co. (Brunn). 



Pennsylvania.— Northampton Co. (Clemens). 



LIFE HISTORY. 



It will be noticed that a discrepancy as to the stage in which 

 this insect hibernates occurs between the statements of Mr. Brunn 

 and Dr. Clemens, the former saying that it passes the winter a? 

 a larva, and the latter, as a pupa. I have examined a large num- 

 ber of the mines late in autumn as well as throughout the winter 

 and early spring, and never have found the pupae earlier than 

 April 9, up to this date the larvae being invariably present. 



Briefly recapitulated, the life history of the species is this: The 

 small brownish moth deposits an egg on the surface of the leaf, 

 from which there soon hatches a minute greenish larva which be- 

 gins mining the leaf, making at first only a narrow mine, but 

 gradually widening it as it grows older. When full grown it is 

 about two tenths of an inch long, flat, with a green body and 

 brown or black head. It pupates within the mine, and in due 

 season emerges as a moth. 



The apple Tischeria is very easily recognized by the peculiar 

 mine of the larva, so that its presence can be detected at any sea- 



