CHAPTEE II. 



PAPERS CONTRIBUTED BY DR. B. CLEMENS TO THE 

 ACADEMY OF NATURAL SCIENCES OF PHILADELPHIA. 



[Reprinted from the Proceedings of the Academy of Natural 

 Sciences of Philadelphia, September, 1859, pp.^256 262.] 



CONTRIBUTIONS TO AMERICAN ENTOMOLOGY. 



BY BRACKENKIDGE CLEMENS. 



TlNEINA. 



IT is the intention of the writer to confine these contributions 

 to Lepidopterology, to the description of species, which are 

 new to entomological 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 recently advanced 

 elsewhere, nor has any question arisen in 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 

 family. 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 as- 

 semblages of genera, under a family termination. 



I find in the pterogostic characters of the perfect insect a 

 similitude of structure which enables the investigator, with 



