JANUARY, 1860. 87 



[Reprinted from the Proceedings of the Academy of Natural 

 Sciences of Philadelphia, January, 1860, pp. 4 15.] 



CONTRIBUTIONS TO AMERICAN LEPIDOPTEROLOGY. No. 3. 



BY BRACKENRIDGE CLEMENS, M.D. 

 TlNEINA. 



THE plan of these papers will hereafter be changed, and no 

 diagnosis of genera will be given, except when there is doubt 

 respecting the identity of the European and American groups, 

 and when the genera are new. The intention of giving some 

 conception of the systematic arrangement of the group 

 TINEINA will therefore be abandoned, and the subsequent 

 papers be confined simply to the description of species. I 

 find myself compelled to adopt this course, in consequence of 

 perceiving, as I advance in the recognition of generic groups, 

 that the diagnoses of the families heretofore cited are too 

 limited, and that, in order to represent my conception of 

 these groups, I shall be obliged to make them more compre- 

 hensive. These changes, together with the generic synopses 

 of the families, will be best treated in a monograph of the 

 TINEINA, which will be undertaken as soon as the collection 

 of the writer represents, with some degree of completeness, 

 the genera found in our country. . In order that the accom- 

 plishment of this may not be too long delayed, contributions 

 of specimens are respectfully solicited from collectors, either 

 in accordance with the call from the Secretary of the Smith- 

 sonian Institution, in the Report of 1858, or the request 

 made at the present time. Contributions may be sent to the 

 Smithsonian Institution, or to myself, but in the latter case, 



