April, '15] 



GLEXX: APPLE FLEA-WEEVIL 



279 



to fit nearest the type desired. Several necessary changes were made, 

 howev^er, such as placing the feed or fertilizer tank so as to allow its 

 emptying behind the seed dropper, together with other alterations, 

 being careful all the while to keep the whole weight so well balanced as 

 to allow smooth running in the field and avoid clogging the seed dropper, 

 while still allowing enough weight on the covering wheel to cause it to 

 cover the soil over the rows and roll it down evenly. Considerable 

 time was given to this, and the aid of a high rate mechanic employed 

 to make the necessary changes. Circumstances prevented its com- 

 pletion and use during the present season, but in its employment an- 

 other year it is hoped that several of the factors of variation enter- 

 ing into the problem may be eliminated. and thus enable the securing 

 of more reliable data as to the relative value of the different treat- 

 ments, based on their effectiveness against attack. 



THE APPLE FLEA-WEEVIL IN ILLINOIS 



Orchestes caiiiis 

 By P. A. Glenn, Urbana, III. 



In June, 1901, a small black rhynchophorous beetle was discovered at 

 several points in southern Illinois feeding upon the foliage of apple, 

 causing in some instances considerable damage. The species was at 

 first supposed to be Orchestes pallicornis Ssij, but was later ascer- 

 tained to be Orchestes canus Horn. This species was described b}^ Dr. 

 G. H. Horn in 1873 from specimens of adults from Michigan and Colo- 

 rado. So far as we have been able to learn, there is no further refer- 

 ence to it in entomological literature until 1901, when the first pub- 

 lished account of its injurious habits appeared under the title "A 

 New Apple Insect," in a paper read hy Dr. S. A. Forbes before the 

 Illinois State Horticultural Society and published in the Transactions 

 of that society for the year 1901. A more extended illustrated article, 

 prepared by ^Ir. Charles A. Hart, was published in 1911 in the Twenty- 

 Sixth Report of the State Entomologist of Illinois. A paper entitled 

 "The Apple Flea-weevil in Illinois," by Stephen A. Forbes, was pub- 

 lished in 1912 in Volume 46, Xew Series, of the Transactions of the 

 Illinois State Horticultural Society, and another paper entitled ''The 

 Apple Flea-weevil,'' prepared by the writer, w^as published in 1913 in 

 Volume 47 of the Transactions of the same society. 



General Descriptiox' of Stages 



The adult of the apple flea-weevil is about one-eighth of an inch long, 

 rather robust, and of a uniform dull black color throughout. The 

 ej^es are large, almost meeting in front, and the beak is only slightly 



