26 DECIDUOUS FRUIT JNSECTS AND INSECTICIDES. 



rounded, without liorn-like processes, but with a pair of slendin- 

 seta?. This stage has not hitherto been described, the description 

 given by Weed being evidently that of the pupa of some other 

 species. (See fig. 9, c\ f.) 



The adult or moth. — The description given by Clemens is as fol- 

 lows : " The head and antennte shining, dark brown, face ocherous. 

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

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

 wings dark gray; cilia with a rufous tinge." (See fig. 9, «, h.) 



FOOD PLANTS. 



In his original description Clemens gives the food plant as apple. 

 Chambers states that he bred it from leaves of different species of 

 haw (Crataegus), sweet-scented crab {Pyrus co/'oiu/ria) , blackberry 

 {Rnhus viUosiis), and raspberry (Ruhus oecidenUdis) ^ and adds that 

 it probably mines other species of Rosacejr. Later Clemens says 

 that this species, as well as certain others, feeds indifferently on 

 leaves of Crataegus, Prunus, and Mains. 



In 1873 Messrs. Frey and Boll described Tischcrkt a-nea, bred from 

 Ruhtis villosvs, and Tlscherht loseticohi from Iiosd cdi-olhia. In the 

 Cincinnati Quarterly Journal of Science Chambers adds the dew- 

 berry {Ruhus canadensis) to the food plants of Tischvrla maJifoViella^ 

 and does not consider T. a^nea of Frey and Boll, from blackberry, dis- 

 tinct from I\ maJlfoJielJa- he regards as belonging to this species 

 the specimens bred from all the species of IJubus, Crataegus, and 

 Pyrus. He also doubts the distinctness of T. roseticola. However, 

 in a later publication, *' Tineina and Their Food Plants." ]Mr. Clemens 

 recognizes the two species of Frey and Boll above cited, and as food 

 l^lants of T. maJifoViella gives Crata'gus, Pi/fiis coronar'ta^ and Pi/j'us 

 malns^ omitting as food plants species of Prunus. I\ul)us, and Posa. 

 assigning the two latter as food plants of (oiea and roseticola^ re- 

 spectively. The distinctness of the three species was again recog- 

 nized by Chambers in his Index to the Tineina of the United States 

 and Canada, and more recently by Doctor Dyar in his " List of X. A. 

 Lepidoptera." " 



Finally Mr. Pettit notes serious damage to blackberries from 

 T. inalifol'teUa at the South Haven substation in ^Michigan, and 

 states that the insects seem to breed in the neighboring apple trees 

 and come to the l)lackberries from them. However, in the absence 

 of definite breeding work and the critical comparison of adults thus 

 secured, it will be best to follow the evident conclusions of Chambers 

 and Dyar, and limit the food plants of T. m(d\fol\clJ(t to species of 

 Crataegus and Pyrus. During the present season (1907) the insect 



« Bui. .^2. r. S. Nat. ]SIiiseum, 1902. 



