266 . [November 



regular markings; the larva of turmis (wliich was taken from the Sassa- 

 fras) was pea-green above with a yellow edging, beneath pale purplish- 

 brown. He therefore says "The query is: — if, as some suppose, the J\ 

 glaucus and turnus are merely sexual varieties, then it follows that the 

 larvae differ as essentially as do the perfect insects, both in color and hab- 

 it, leaving a doubt as to the fact of the two being but male and female of 

 the same species." 



The following papers were presented for publication in the Proceedings: 

 " Metamorphoses of Ceratomia ((uadricornis, Harris, by J. A. Lintner." 

 " On the genera of Aphidre found in the U. States, by B. D. Walsh, M.A." 



And were referred to Committees. 



VERBAL COMMUNICATIONS. 



Mr. Bland stated that the Puff-ball beetle communicated this evening: 

 by Mr. Stauffer, is a species of Ti/Jistux. and was described by Say as Dor- 

 ratoma almtlr -^ it belongs to the family P/m^Vfe, which, in the present 

 classification of Coleoptera, is located some distance from Endomycliidx 

 to which Mr. S. supposed it belonged. It was, however, very interesting 

 to know something of the habits of this little insect and he hoped that 

 the Society would place upon record the discovery which Mr. S. has made. 



Mr. Ridings stated that he was quite satisfied that Papilio glaucus is 

 only a black female of P. turnus. He had taken a black female in con- 

 nection with a yellow male as long ago as 1832, and since that time he has 

 taken females of all shades from a deep black to a dark yellow, but never 

 observed or heard of a female being as light colored as a male, neither a 

 male as dark colored as a female. He also stated that the larvae of turnus 

 do not confine themselves to any particular food-plant, although about 

 Philadelphia they generally feed upon the Tulip-Poplar. In 1843 Mr. 

 David Dyson came over from England and made extensive collections of 

 insects &c., in the United States; he took with him on his return to Eng- 

 land a number of both sexes of P. turnus and was the first to make known 

 to Mr. Doubleday that P. glaucus was only a black female of P. turnus. 



On motion, the thanks of the Society were voted to Baron R. Osten 

 Sacken for his beautiful donation of oak-galls &c., made this evening. 



On ballot, Messrs. William S. Wilson, C. Ernest Seeber and Edward A. 

 Manuel, all of Philadelphia, were elected Resident Members; and Messrs. 

 J. A. ]jintner of Schoharie, N. Y., D. W. Beadle of St. Catherines, C. W., 

 William Couper of Quebec, Canada, B. Billings of Prescott, C. W., and 



