The Peach-Tree Borer. 



253 



detailed accounts of the life-history and methods of combating the 

 peach-tree borer in the literature. Records experiments with various 

 mechanical protectors, and with cement and other washes. Illustrated 

 by many new pictures of the different stages of the insect, its structu- 

 ral characteristics, and its work. 

 1899. Lugger, O. Fourth Rept., pp. 57-59. Brief general account, quoted 

 mostly from Saunders (1883). Uses Kedicott's (1890) fine figures. 



Fernald, H. T. Penn. Dept. of Agri., Bull. 47, pp. 14-15. Brief account, 

 with Lowe's figures. 



Slingerland, M. V. Rural Neio Yorker, Mar. 25, 1899, p. 222. Results of 

 experiments with tarred paper. 



Slingerland, M. V. Trans. Mass. Hort. Soc. Part I., for 1898, 5 pages. 

 Brief account of life-history with somewhat detailed statement of 

 results obtained with the various methods used in our extensive experi- 

 ments against the insect. 



BeutenmuUer, W. Bull. Am. Mus. Nat. His., XII, 159. Genus Sanni- 

 noidea defined. Variations of exitiosa discussed; variety fitcliii shown 

 to have been incorrectly described; and the varietal name edwardsii 

 proposed for the females, having both the fourth and fifth abdominal 

 segments banded with orange; var. luminosa described. 



MARK VERNON SLINGERLAND. 



57. — TTie four stages — egg, larva or ''horer," pupa, and adult or moth — of the 

 peach-tree borer's lije; all natural size except the egg, which is much 

 enlarged. 



