ANNOUNCEMENT 



Separates of all the important papers published in the PROCEED- 

 INGS OF THE ENTOMOLOGICAL SOCIETY OP WASHINGTON and a num- 

 ber from other journals are for sale at approximately two cents per 

 page (no article less than ten cents). They can be had by apply- 

 ing to the Corresponding Secretary of the Entomological Society, 

 U. S. National Museum, Washington, D. C. No receipt will be 

 mailed for the sale of printed matter unless especially requested. 



OF SPECIAL INTEREST 



BAKER, C. F. A Revision of the North American Siphon- 

 aptera or Fleas, Together with a Complete List and 

 Bibliography of the Group. 1904 $1.50 



BANKS, N. Bibliography of the More Important Contri- 

 butions to American Economic Entomology. 1888- 

 1905, Parts 6, 7, 8 $1.50 



DYAR, H. G. The Life Histories of the New York Slug 

 Caterpillars. Journ. New York Ent. Soc. 1895- 

 1899. (Complete) $1.50 



DYAR, H. G. Life Histories of North American Geomet- 



ridae. Psyche, 1899-1905, 63 parts (part 20 missing) $ .75 



HEIDEMANN, O. Some Remarks on the Eggs of North 



American Species of Hemiptera-Heteroptera. 1911.. $ .25 



SMITH, J. B. Contribution Toward a Monograph of the 

 Noctuidae of Temperate North America. Five 

 parts, Mamestra, Xylophasia and Superina, Some 

 Taenicompid genera; Homohadena, Agrotes. (May 

 be had separately) Set $2.25 



