1865.] 39 



teristic in Sesia, while the wings are not limpid, and are without 

 vitreous spots as in Macroglossum. The more unicolorous abdomen 

 wants the "furry" appearance of Sesia, while the anal hairs are some- 

 what similarly arranged as in that genus, not exaggerated into the 

 well-formed anal tuft of Macroglossum. 



The single species, described by Mr. Walker, has been recently 

 taken in Canada, and specimens are now contained in the Collection 

 of the Entomological Society. 



Lepisesia flavofasciata. 



Macroglossa flavofasciata, Barnston, Walk. C. B. M. 8, p. 87. (1856.) 

 Macroglossa flavofasciata, Clemens, Syn. N. A. Sph. 131. (1859.) 



Above, the thorax and head are clothed with pale yellowish sericeous 

 erect hair, mingled with blackish scales. Laterally the palpi, and the 

 orbits of the eyes are deep black. Abdomen black, with sericeous 

 hairs above on basal segment. Anal tuft black, with lateral sericeous 

 hairs. The anterior wings are blackish with obsolete ornamentation ; 

 beneath, at base, covered with bright fulvous scales. Posterior wings 

 black with a broad central bright fulvous fascia, which contracts, trian- 

 gularly, towards internal margin. Legs black. Exp. % , 1.60 inch. 

 Length of body .80 inch. 



Habitat. — Canada. Coll. Ent. Soc. Philad. 



The peculiar sericeous thoracic squammation of Sesia, and which is 

 shared by Lepisesia, together with the vitreous wings of the former, 

 have been made use of in instituting analogical comparisons with the 

 hymenopterous genus Bomhus. 



Ceratomia repentinus, Clemens. 



Boisduval's figure, Sp. Gren. Plate 15, and which he calls errone- 

 ously Sphinx hrontes, refers to this species and should be quoted in 

 the synonymy. Dr. Clemens was the first to describe and name the 

 present species which he regarded as congenerical with Ceratomia 

 qundricornis Harris. Under " Sphinx Brontes" I have more fully 

 expressed my comprehension of the synonymy of Drury's species, 

 while a misunderstanding has resulted mainly from Boisduval's error 

 and the silence of Dr. Clemens as to the figure in the Species Gen- 

 eral. 



It is somewhat extraordinary, and merely adds to the confusion, that 

 Dr. Herrich-Schaeffer, Corr. Blatt, p. 149 (1863,) in speaking of the 

 species which must be Sphinx brontes, mihi, states that Boisduval's 



