mes. . AL, B: b Bul..68, Part. ITT. D. F. I. I., October 15, 1907. 
PAPERS ON DECIDUOUS FRUIT INSECTS AND INSECTICIDES. 
THE TRUMPET LEAF-MINER OF THE APPLE. 
(Tischeria malifoliella Clemens. ) 
By A. L. QUAINTANCE, 
In Charge of Deciduous Fruit Insect Investigations. 
During 1905 this species became unusually abundant in the Dis- 
trict of Columbia and in localities in adjacent States. Specimens 
of mined apple leaves were received from Afton, Va., Newark and 
~ Woodside, Del., Cheltenham, Pa., and Vermont. Judging from the 
- condition of the leaves sent, the insect in these several places was 
much less abundant, however, than in the immediate vicinity of 
~ Washington. During 1906 the insect was again exceedingly abun- 
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en ee ee eee 
— dant in the environs of Washington, was the subject of further com- 
plaint from Delaware, and was received from Connecticut. 
HISTORY. 
This species was described in 1860 by Clemens in the Proceedings 
of the Philadelphia Academy of Sciences, Volume XII, page 208. 
_ from material presumably from Pennsylvania. Interesting observa- 
_ tions concerning its food plants are presented by Chambers in the 
— Canadian Entomologist, Volume III (1871), page 208; Volume V 
(1878), page 50, and Volume VI (1874), page 150. Additional notes 
are given by him in the Cincinnati Quarterly Journal of Science, 
~ Volume IT (1875), page 3; in Bulletin U. S. Geological and Geo- 
) graphical Survey, Volume IV (1878), page 107, “ Tineina and their 
~ Food Plants,” and in Psyche, Volume IIT (1889), page 68. Messrs. 
Frey and Boll, in Stettiner Entomologische Zeitung, Volume 
XXXIV, page 222, note its occurrence in Germany on apple im- 
ported from this country. The insect has been occasionally men- 
tioned by Lintner in the reports of the New York State Entomolo- 
gist and elsewhere, and is the subject of an article with bibliography 
in his Eleventh Report. Dr. E. A. Brunn, in the Second Report of 
the Entomological Department of Cornell University (1882), in a 
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