Dec, 1907.] Proceedings of the Society. 251 



tribe. Mr. Schaeffer stated that he had taken in Arizona the female of a new species 

 of Cenophengtis which belonged to this tribe and spoke particularly of the phosphor- 

 escence of this and other forms of Lampyridse. 



Professor Wheeler spoke of the work of Professor Showatasi,. of the Imperial 

 University of Tokio, Japan, with phosphorescent animals, and related how he had 

 collected a great many forms in this country to which he had given a great deal of 

 investigation. He had taken numbers of the females of Phengodes at Morgan Park, 

 Chicago. On question of Mr. Southwick, Professor Wheeler discussed the theory of 

 Professor Showatasi, explaining that the phenomenon of phosphorescence was caused 

 by the fact that air admitted through the tracheae penetrated certain fatty bodies, thus 

 causing luminosity. It was not an oxidation process so far as known. 



The president appointed the following standing committees : 



Auditing : Messrs. Harris, Southwick and Dickerson. 



Field : Messrs. Engelhardt and Davis. 



Meeting of February 19, 1907. 



Held at the American Museum of Natural History. President C. W. Leng pre- 

 sided with seventeen members and two visitors present. 



The librarian reported the receipt of the following exchanges : 



Bibliography of Canadian Entomology. C. J. S. Bethune. 



Mittheilungen de Schweiz. Ent. Gesellsch., XI, No. 5. 



Entomologisk Tidskrift, XXVII, Nos. I-4. 



Canadian Entom., XXXIX, No. 2. 



Revision of the American Moths of the Genus Argyresthia. Aug. Busck, Proc. 

 U. S. Nat. Mus., XXXII, No. 1506. 



Report on the Mosquitoes of the Coast Region of California, with Descriptions 

 of New Species. Harrison G. Dyar, Proc. U. S. Nat. Mus., XXXII, No. 1516. 



Philos. Soc. Washington, Bull. XV, pp. 1-26. 



Entomologiske Middelser, Dec, 1906. 



Bulletin Buffalo Soc. Nat. Sci., VIII, No. 4. 



Mr. Davis presented the resignation of Mr. Alfred C. Burrill which was accepted 

 on motion of Mr. Joutel. 



The secretary read an invitation from the Seventh International Zoological Con- 

 gress inviting the society to be represented by delegates at its next meeting to be held 

 at Boston, Mass., August 19 to 23. 



On motion of Mr. Davis, Professor Wheeler was elected as such a delegate. 



Mr. Frank E. Watson exhibited some specimens of the typical Philosamia cynthia 

 moths and a number of specimens of an aberrant form. He stated that the peculiar 

 variety differs from the typical cynthia in having the area of both wings between the 

 pink band and the narrow olive band along the outer margin with the black scales 

 predominating so as to form a conspicuous wide black band on both surfaces. The 

 apices are as in the typical form. About 75 of the cocoons were gathered in the fall 

 of 1902 near Crotona Park. Part of these he gave to Mr. Chas. Myers who kept 

 them during the winter in a cool room. The remainder which he kept were placed 

 in a cold cellar and were hatched under the same conditions in which the normal 

 forms were hatched out. Of Mr. Myers' lot two aberrant males hatched on the fif- 



