Produced by Larry B. Harrison, Diane Monico, and the Online Distributed Proofreading Team at http://www.pgdp.net VOLUME ELEVEN NUMBER FOUR JOURNAL OF ENTOMOLOGY AND ZOOLOGY DECEMBER, 1919 PUBLISHED QUARTERLY BY POMONA COLLEGE DEPARTMENT _of_ ZOOLOGY CLAREMONT, CALIFORNIA, U. S. A. CONTENTS Page NOTES ON THE BEHAVIOR OF THE SOCIAL WASP POLISTES --_Horace Gunthorp_ 63 BIOLOGY OF THE NORTH AMERICAN CRANE-FLIES. V. THE GENUS DICRANOPTYCHA--_Charles P. Alexander_ 67 THE CENTRAL NERVOUS SYSTEM OF NUCULA AND MALLETIA --_W. A. Hilton_ 75 Entered Claremont, Cal., Post-Office Oct. 1, 1910, as second-class matter, under Act of Congress of March 3, 1879 Journal of Entomology and Zoology EDITED BY POMONA COLLEGE, DEPARTMENT OF ZOOLOGY _Subscription_ $1.00 to domestic, $1.25 to foreign countries. This journal is especially offered in exchange for zoological and entomological journals, proceedings, transactions, reports of societies, museums, laboratories and expeditions. The pages of the journal are especially open to western entomologists and zoologists. Notes and papers relating to western and Californian forms and conditions are particularly desired, but short morphological, systematic or economic studies from any locality will be considered for publication. Manuscripts submitted should be typewritten on one side of paper about 8 by 11 inches. Foot notes, tables, explanations of figures, etc., should be written on separate sheets. Foot notes and figures should be numbered consecutively throughout. The desired position of foot notes and figures should be clearly indicated in the manuscript. Figures should be drawn so that they may be reproduced as line cuts so far as possible. An unusually large number of half tones must be paid for in part by the author. Other more expensive illustrations will be furnished at cost. Figures for cuts should be made to conform to the size of the page when reduced, that is, 5 by 7-1/2 inches or less. The lettering should be by means of printed numbers and letters pasted on the drawings, in most cases. Authors of articles longer than a thousand words will receive fifty reprints of their publications free of cost. If more than this are desired, the order should be given with the return of the proof sheets. Extra copies and special covers or special paper will be furnished at cost. Authors of short contributions will receive a few extra copies of the number containing their articles. Manuscripts should be sent by express or registered mail. Address all communications to THE JOURNAL OF ENTOMOLOGY AND ZOOLOGY William A. Hilton, Editor Claremont, California, U. S. A. Notes on the Behavior of the Social Wasp Polistes HORACE GUNTHORP Washburn College, Topeka, Kans.