CONTENTS OF THIS NUMBER. 
Tate 
Mattoca, J. R.—A Revision of the North American © 
Pachygasterinz with Unspined Scutellum (Diptera) BOS Mi tye 
WHEELER, WittIAM Morron—On the Presence and Peay ica 
Absence of Cocoons Among Ants, the Nest-Spinning BF eae 
Habits of the Larvee and the Significance of the 
Black Cocoons Anong Certain Australian Species. 323 
Dewitz, J.—On the Poisons of ‘Plantdice"< 620550. 343 
Witson, H. F—A Synopsis of the Aphid Tribe Ptero- Bi 
 COUnIIE es 00 OA) eee a ed ag 
BrsHopp, F. C.—The Dideroation and ie datas: of 
the Ox Warbles, Hypoderma pineate and H. Bovis Pee iy 
in the. United Shales OO rae Sa rea Ae ceca 359° metal 
BALL, E. D.—Adaptations to Arid Conditions in. ce a ‘ei 
‘copide and *Membracidas. 331 Se ee coos a aa be ea 
ay et BC ae 
QUAINTANCE, A, L., and Baker, A. C.—A New. Gengs” ee 
and Species of Aleyrodide From British Guiana. SRO Ge ney 
Woopwortu, C. W.—Quantitative Entomology. ese Oh 
¥ Wt pets eS. 
OD a 7 eee a 
Proceedings of the Entomological Society of America— Se eitay. 
California Summer Meeting..-..-. oe Te cin cate a ae 
‘The regular annual subscription price for the ANNALS igi aN 
the United States, Cuba, Porto Rico, Hawaii and Mexico, $3.00; ie 
‘Canada, $3.50; other countries, $4.00. Checks, drafts or Money 374% 
orders should be drawn payable to ANNALS ENTOMOLOGICAL = 
Society oF AMERICA, and addressed to HERBERT OSBORN, _ Ca 
State University, Columbus, Ohio, U.S. Be yr a 
i : 4 q f ‘f a 5 a 5 eg Mite es 
% 0 2 G ge aoe rein bral 
f } ee ’ pera si they Pp ee ¥ 
. ee Ra eno cet a osh ee Oey 2 
