274 PAPERS BY DR. B. CLEMENS. 



[Extracted from the Proceedings of the Entomological Society of 

 Philadelphia, Vol. VI. pp. 221, 222, November, 1866.] 



NOTES ON TIIYPJDOPTERYX EPHEMERiEFORMIS. 



BY BRACKENRIDGE CLEMENS, M.D. 



[This is an inquiry into the synonymy of Ilaworth's Sphinx 

 Ephemerceformis, and concludes thus :] 

 The synonymy of this species would therefore stand as 

 follows : 



Til YRIDOPTERYX E PIIEMERiEFORMIS. 



Sphinx Ephemerceformis, Haw., Lep. Brit. 72. 



JEgeria Ephemerceformis, Stephens,* 111. Brit. Ent., 

 Haust., I. 145. 



Thyridopteryx Ephemerceformis, Stephens, Trans. Ent. 

 Soc. Lond., Vol. I. p. 76, pi. 10, f. 1 ; 111. Brit. Ent., 

 Haust., Vol. IV. ; Doubleday, on some N. American Lep. — 

 Entomologist, p. 97 ; Gosse, Zool., II. 537 ; Walker, Cat. 

 Brit. Mus., IV. 959, 60. 



(Eceticus coniferarum, Packard, Proc. Ent. Soc. Phila., 

 Nov. 1864, p. 351. 



Ihjmenopsy die coniferarum and thoracicum ? Grote, 

 Proc. Ent. Soc. Phila., Dec. 1865, p. 248. 



This Avas the last Entomological paper which was published 

 by Dr. Brackenridge Clemens. H. T. S. 



* Dr. Clemens lias here erroneously written Haw. II. T. S. 



