CONTENTS OF THIS NUMBER. 



DoziER, Herbert L. — An Ecological Study of Ham- 

 mock and Piney Woods Insects in Florida 325 



BwiNG, H. B. — The Genus Trombicula Berlese, in 



America and the Orient 381 



Peterson, Alvah — Some Studies on the Influence 

 of Environmental Factors on the Hatching of 

 the Eggs of Aphis Avenae Fabricius and Aphis 

 Pomi DeGeer 391 



Alexander, Charles P. — A New Sub-family of 



Tanyderid Flies (Diptera) 402 



Bezzi, M. — The Correct Name for the Dipterous 



Genus Dicrania 408 



Price List of Publications. 



Annals, Vols. I to XII, complete, each $3 . 00 



Annals, Separate Parts, except as below, each 1 . 00 



Annals, Vols. I and II, Part 3, each 50 



Annals, Vol. IV, Part 4, each 1.60 



BACK VOLUMES 



Of the Annals of the Entomological Society of America may 

 be secured from the office of the Managing Editor and new members 

 of the Society who may wish to complete a set are advised to secure 

 the earlier volumes while there is still a supply on hand and the price 

 is kept at the original subscription rate. 



Address Herbert Osborn, Managing Editor, 



Annals Entomological Society of America, 



State University, Columbus, Ohio. 



