1909] Proceedings 3 



/. B. Smith. "Species, varieties, races, etc." Discussion 

 was postponed until after the reading of the next. 



H. Skinner. "What is a species?" Considerable discussion 

 was evoked by these two papers, Messrs. Williston, Femald, Felt, 

 Viereck, Schwarz, Caudell and others participating. 



Adjournment. 



At 10 A. M. on December 31st, the meeting was called to order 

 by Dr. Wheeler, and the following papers read : 



H. P. Severin. "Death-feigning by Zaitha fluminea." Read 

 by Prof. Osborn. 



C. R. Crosby. "Some habits of seed infesting Chalcis flies." 

 W. A. Riley. "The development of the scent-pockets of 



Anosia." 



W . A. Hilton. "Tracheal dis'tribution in the nervous system 

 of larval Corydalis cornuta." 



E. P. Felt. "Observations on the taxonomy of the Ceci- 

 domyiidae." 



F. S. Sherman, Jr. "Recording and mapping the entomo- 

 logical fauna of a state." 



D. W. Coquillett. "Rediscovery of the Bibionid genus 

 Eupeitenus." 



In the absence of the authors, or for other reasons, the fol- 

 lowing papers were read by title only : 



S. A. Forbes, "Local relations of allied species." A. Petrunke- 

 vitch, "On some terms used in systematics." E. A. Andrews, 

 "A colony of mound-building ants." W. E. Ritter, "The concep- 

 tion of unit-systems in biology." C. T. Brues, "Some further 

 remarks on the systematic affinities of the Phoridae." A. A. 

 Girault, "A monographic catalogue of the Myrmarid genus 

 Camptoptera Foerster, with description of one new North Ameri- 

 can form." J. J. Davis, "Studies on Aphididae II." R. V. 

 Chamberlin, "A Newportia in Utah." 



The following report from the Executive Committee was 



read and, with all its provisions and recommendations, adopted: 



"The Executive Committee announces the election of the following 

 Fellows: Samuel W. Williston, Theodore Dru Allison Cockerell, Eph- 

 raim Porter Felt, Elmer Darwin Ball, Alexander Dyer MacGillivray. 

 In June the following nine members were elected: W. O. Hart, lo4 

 Carondelet St., New Orleans, La.; B. F. Berrenger, 3-4 Masonic Block, 

 Fostoria, O.; Prof. E. P. Durrant, Westerville, O.; Henrik Peder Bod- 

 ing, 911 Palmetto St., Mobile. Ala.; W. P. Flint. Office State Ento- 

 mologist. Urbana, 111.; Charles N. Ainslie, Bureau Entomology, Wash- 

 ington, D. C. ; Prof. A. F. Conradi, Clemson College, S. C. ; H. H. Sever- 



