256 PROCEEDINGS OF THE ACADEMY OF 



The following papers were presented for publication in the Proceed- 



ings 



" Contributions to American Lepidopterology, by Bracken rid^e 

 Clemens, M. D." 



"Description of a deformed fragmentary Human Skull found in an 

 ancient quarry cave at Jerusalem ; with au attempt to determine by its 

 configuration alone the ethnical Type to which it belongs, by J. Aitken 

 Meigs, M. D." 



September 27 th. 

 Vica-President Bridges in the Chair. 



Thirty-eight members present. 



The Report of the Biological Department for the present month was 

 read. 



On report of Committees of the Biological Department, the paper 

 entitled " On the seat of the vesicating principle of Lytta vittata, by 

 Joseph Leidy. M. D.," was recommended for publication ia a medical 

 journal, and one entitled " Abstract of the most important points of 

 Researches on the Minute Anatomy of the Liver, by H. D. Schmidt," 

 was ordered to be published in the Proceedings. 



On report of the Committee, the paper entitled " Catalogue of the 

 Invertebrate Fossils of the Cretaceous formation of the United States, 

 by Wm. M. Gabb," was ordered to be published with the Proceedings. 



The following were ordered to be published in the Proceedings : 



Contributions to American Lepidopterology. 



BY BRACKENRIDGE CLEMENS. 



TlNEINA. 



It is the intention of the writer to confine these contributions to Lepidopter- 

 ology, to the description of species which are new to entoimlogical history, or 

 which are believed to be new. This plan dispenses with the necessity of general 

 remarks on systematic arrangement, since but few species at a time will be 

 .given as the genera to which they belong are determined, or ascertained to 

 be undescribed. Indeed I have nothing of value to add to what has been re- 

 cently advaaced elsewhere, nor has any question arisen iu my studies of the 

 present group, that would induce me to retract or doubt the accuracy of the 

 views advocated, respecting the nature of a farhily. I do not wish, however, 

 to be understood to assert that the group Tineina is synonymous with a family. 

 I do not by any means entertain the belief that it includes only one, and yet I 

 can perceive but little in the majority of the groups collected under this term, 

 other than artificial assemblages of genera, under a family termination. 



I find in the pterogostic characters of the perfect insect a similitude of struc- 

 ture which enables the investigator, with but little difficulty, to refer it to the 

 appropriate principal group formed on this basis. The individuals, thus assem- 

 bled together agree not only in general structure, but in embryonic histories and 

 in larval forms, so far as my own observation and study of other fauna than 

 our own has enabled me to determine the question. The agreement in embry- 

 onic form extends into the group Tortricina, and the relationship in the imago, 

 is likewise expressed to a certain degree in the neuration of the wings of this 

 latter group, as compared with that of the Tineina. The3e characters, however, 

 . are suificiently marked in each, and can scarcely be mistaken in either instance 



[Sept. 



