2 8 Annals Entomological Society of America [Vol. I, 



The meeting proceeded directly to the reading and discussion 

 of papers. 



Notes on the Geographical Affinities of the Coleoptera of the 

 Isle Royale, Lake Superior. (An outline of the relations of the 

 Isle Royale beetle fauna to that of northern North America. 

 General remarks on the miajor fauna! centers based on beetles.) 

 C. C. Adams. 



Dr. Smith asked if there was not a large Carabid element 

 present as Mr. Schwarz had found a ^'ery large proportion 

 of these and of Staphylinidse along the shores of Lake Michigan, 

 and from the way Mr. Adams said the fauna had been derived one 

 would expect the same on the Isle Royale. Mr. Adams said that 

 that was the case. Dr. Fletcher asked if Mr. Adams had applied 

 names to his areas. Mr. Adams had not, but he did not accept 

 the zonal divisions of Merriam, since they did not hold for beetles. 



Some Problems in Nomenclature. (A brief discussion of the 

 validity of names, particularly those bestowed on Insect galls 

 and larvae). Dr. E. P. Felt. 



Prof. Hart asked what should be done with galls from which 

 the adult insects were unknown. Dr. Felt would give them ten- 

 tative names. Dr. Needham said that names of galls were of a 

 different sort from those bestowed upon plants and animals and 

 should not enter our zoological s^'stems. Mr. Bradley added that 

 English names, if used for galls, would avoid the confusion that 

 the introduction of Latin names causes. He objected to even the 

 tentative use of binomials. 



Stereoscopic Photography applied to Entomological Subjects. 

 Prof. F. L. Washburn. 



Discussion by Messrs. Hinds and Summers. Mr. Bradley 

 mentioned a very simple device which Mr. Crosby and he had 

 used in obtaining good stereoscopic eft'ects in photographing 

 insects. It consisted of an ordinary camera having a brass 

 diaphragm that could be reversed, and the aperture made eccen- 

 tric. One exposure was made with the aperture on one side, 

 and another with the aperture on the opposite sicie, the result 

 giving an excellent stereoscopic eft'ect. 



Life history and habits of the Dimorph of Chaitophorus negun- 

 dinis. Thos. (Previous knowledge of the dimorph. Compari- 

 son with a similar dimorph in Europe. Life history; appearance 

 in summer. Part played in the survival of the species, etc.) J. 

 J. Davis. 



