REPORT OF THE STATE ENTOMOLOGIST I909 7I 



1909 Taylor, E. P. Spraying Apples for Curculio and Codling Moth. Mo. 

 State Fruit Exp. Sta. Bui. 21, p. 1-69 



Extended account with experimental data. 



1 9 10 Ball, E. D. Spraying for Codling Moth. Fruit Grower, Jan., 

 p. 16-18, 20 



An extended discussion, advocating one coarse spray. 



19 10 Felt, E. P. Work With Codling Moth. Country Gentleman, 

 March 3, 75 -.230 



Summary of experimental work, 



19 10 Gillette, C. P. New Sprays for the Codling Moth. Econ. Ent. 

 Jour. 3:29-32 



Summary of experimental data. 



Hickory leaf stem borer 



Acrobasis feltella Dyar^ 



This new species was reared in early July from caterpillars in- 

 habiting hickory stems collected by Mrs A. M. A. Jackson, 

 Warner, Onondaga co., N. Y. This borer, it was stated, was 

 somewhat abimdant upon young hickories. It was at first sup- 

 posed to be identical vvitli Acrobasis angusella Grote, 

 a species also occurring in hickory leaf stems. Dr Dyar states that 

 the adult is separated therefrom by the " conspicuous character of 

 the inner pale band." 



Life history. The larva of this new form bores in the in- 

 terior of the leaf stem, causing a distinct enlargement an inch 

 or more in length and ^ inch in diameter. This portion of the 

 stem is eaten so that only thin walls remain, the cavity having 

 a distinct orifice at one extremity and the latter usually con- 

 nected with a rather extensive, white, frass-filled web an inch 

 to 2 inches long and fastening several leaves together. The 

 larval feeding appears to be confined almost entirely to the in- 

 terior of the stem. Nothing further is known concerning the 

 habits of this species though it is presumable that there is but 

 one generation annually. 



Description. Larva. Length y^ inch. Head dull amber, the 

 thoracic shield greenish amber, the body nearly smooth, dull green- 

 ish or yellowish green, the dorsal vessel being indicated by a dark 

 green stripe. Anal shield dark green, with a few sparse fuscous 

 setae. True legs black. Venter and thorax a little lighter than the 

 dorsum. First thoracic segment with a large lateral tubercle, seco^nd 

 thoracic segment with a large, black, sublateral tubercle on either 

 side and with the annulations rather deep. 



Dyar, H. G. Ent. Soc. Wash. Proc. igog. 11:214. 



