T'. S. D. A.. V>. K. r.nl. cs. Part. III. D. F. I. I., October 15. 1007 



PAPERS ON DECIDUOUS FRUIT INSECTS AND INSECTICIDES. 



THE TRUMPET LEAF-MINER OF THE APPLE. 



{Ti-sclicria iii<tlif(jlicll<i Clenii'iis. ) 



Hy A. L. Qlaintance, 

 I)} Cliarcir of Drcliluoits Fruit I)i!<('ct I)i rest iijaf ions. 



During 1905 this species l)eecime iiniisiially 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 lOOC) the insect was again exceedingly abun- 

 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 ISOO bv 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 

 (18T3), page 50, and Volume VI (1874), page 150. Additional note.-^ 

 are given by him in the Cincinnati Quarterly Journal of Science. 

 Volume II (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 III (1880), page 08. Messrs. 

 Frey and Boll, in Stettiner Entomologische Zeitung, Volume 

 XXXIV, page 222, note its occurrence in German}^ 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 Keport of 

 the Entomological Department of Cornell University (1882), in a 



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