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JOURNAL OF ECONOMIC ENTOMOLOGY 



[Vol. 8 



curved and rather stout. The posterior legs are fitted for jumping, the 

 hind femur being enlarged. When disturbed, the beetle either jumps 

 or drops to the ground and feigns death. 



The egg, which is deposited in the veins of the leaves, is smooth, 

 yellowish in color, rather bluntly rounded at the ends, and slightly 

 curved. 



The larva is flat, j^ellow in color, and about three-sixteenths of an 

 inch in length when full-grown. The segments of the body are dis- 

 tinctly marked. The body is much wider and more bluntly rounded 

 anteriorly than posteriorly, the segments after the sixth decreasing 

 gradually in width, the last segment being very narrow and ending in 

 a rather acute point. 



The pupa is white and resembles other rhynchophorous pupse of 

 nearly related genera. 



HisTOEY IN Illinois 



It was first found injurious to the apple at various points in southern 

 Illinois in June, 1901, by Messrs. E. S. G. Titus and Charles A. Hart, 

 who were at that time, as Dr. S. A. Forbes's assistants, making a 

 study of apple insects in that part of the state. It was again found by 

 Mr. Titus the following spring and by Mr. E. P. Taylor throughout 

 the same region in 1905, and by Mr. Hart in western Illinois in 1906. 

 The following is quoted from Mr. Hart's article in the Twenty-Sixth 

 Report of the Illinois State Entomologist: ''In Illinois we have seen 

 it or its characteristic injuries at about thirty different towns: In 

 Pulaski, Union, Jackson and Williamson counties in extreme southern 

 Illinois; in the prairie fruit region of Washington, Jefferson, Marion, 

 Clay, Wayne, Edwards and Richland counties; in Jersey, Calhoun and 

 Pike counties in the western part of the state; and in Coles and Chris- 

 tian counties in south-central Illinois. It is represented in our collec- 

 tions by several specimens labeled 'N. 111.,' and by one from Normal, 

 McLean county; and it will probably be found to infest apple trees 

 throughout the state." 



During the last three years it has been more or less abundant in 

 all the southern and western counties above recorded. In some local- 

 ities the beetles were abundant enough to be of considerable economic 

 interest and injuries have been quite serious, especially in orchards in 

 which the foliage was scanty. 



Character and Extent of Injury 



The injury is caused both by the larvae which work as miners in the 

 leaves, and by the adults which feed upon the leaves. The injury 

 caused by the -larvae is very much less serious than that caused by the 

 beetles, but frequently the mines are so plentiful that nearly every 



