16 THE CANADIAN ENTOMOLOGIST 



THE ENOMOLOGICAL SOCIETY OF AMERICA, ANNUAL MEETING. 



The Fourteenth Annual Meeting. of the Entomological Society of America 

 was held at St. Louis, Mo., on December 29 and 30, 1919. The chair was 

 occupied by the President, Professor J. G. Needham, and there was a goodly 

 attendance of members present. 



The following is a list of the papers read at the meeting: — 



Tropisms in Insect Behaviour — ^An Enquiry. C. H. Turner. 



The Food Plants and Distribution of Certain Calendra Species. A. F. 



Satterthwaite 

 The Biology of the Carabid Genera Brachynus, Galerita and Chlaenius. 



J. L. King. 

 The Influence of Environmental Factors in the Hatching of the Eggs 



OF Aphis Prunifolia, Fitch. Alvah Peterson. 



Insects of the Between-Tide Zone of the North Carolina Coast. Z. P. 

 Metcalf and Herbert Osborn. 



Observations on Canadian Ticks. Seymour Hadwen. 



Notes on the Mouth-parts of Aradid^e. C. S. Spooner. 



The Genitalia of the Syrphid^. C. L. Metcalf. 



Observations on the Genitalia of Lachnosterna. Wm. P. Hays and J. 



W. McCulloch. 

 Notes on the Leafhoppers of the Subfamily Gyponin^. E. D. Ball. 



The Production of Abnormal Larv.e, Pup^ and Adult Beetles by Gas 

 Secreted by the Confused Flour Beetle {Tribolinm confusum). R. N. 

 Chapman. 



Serum Diagnosis and Insect Relationship. Robt. D. Glasgow and Josephine 

 Burns Gla.sgow. 



The Syrphid Fly (Mesogramma marginatum) Caught By Flowers of the 

 Dogbane. R. C. Osburn. 



A special feature of the meeting was a symposium on "The Life Cycle of 

 Insects," which aimed to give a "bird's-eye view" of the entire subject. The 

 scope attempted was as follows: 1. Facts as to form changes, broods, length 

 of life, moults. 2. Significance of facts in relation to nature of environment, 

 reproductive capacity, rate and times of growth, habits, etc. Briefest possible 

 statement of what each group best illustrates in relation to the life cycle. 



The subject was presented by groups as follows: — Apterygote Insects, 

 J. W. Folsom; Orthopteroids (sens, lat.), E. M. Walker; Hemiptera, (excr4), 

 E. D. Ball; Aphids and Coccids, Miss Edith M. Patch; Neuropteroids having 

 complete metamorphosis, and Lepidoptera, S. L. Fracker; Coleoptera, (includ- 

 ing Strepsiptera), R. N. Chapman; Diptera, C. L. Metcalf; Hymenoptera, 

 T. D. A. Cockerell. Concluding remarks on the general subject were made by 

 Prof. S. A. Forbes. 



The Annual Address was delivered on Tuesday evening by Dr. W. J. Hol- 

 land, Director of the Carnegie Museum, Pittsburgh. His subject was "The 

 Evolution of Entomological Science in North America." 



