Lepidojoterological Contributions. 365 



the r other, and which appears to us to afford no trace of that 

 Bombycid feature which, in the Zygaenidae, owes its presence 

 to analogy. 



"With regard, finally, to Thyris lugubris, Boisd, with which 

 we are autoptically unacquainted, and which Dr. Harris states 

 to have received from Florida, it would seem, if correctly 

 referred here, to form the type of a distinct genus. Should it 

 really belong to the Thyridae, it will be highly interesting as 

 typical of a genus still lower than Platythyris, and affording, 

 to judge from the figure, analogical resemblance with the lower 

 Zygaenid genus Syntomis, and with a number of other valid 

 genera hitherto loosely arranged under the old name " Glau- 

 copis" and which are now referred to a subfamily of the 

 Zygaenidae. The Florida species would thus complete a scries 

 of mimetic forms which, while illustrating other family rank, 

 are degradational in so far as we fail to perceive cohesive cha- 

 racters, or such as shall be purely those of a distinct family 

 type. 



Fam. ZYGAENIDAE. 



Subfam. ZYGAENINAE, Pack. 



Oharidea, Dolman. 



Charidea foiviilnera, n. s. 



(Plate 13, Fig. 2, $ ) 



Size, moderate ; anterior wings, black ; apices narrowly fringed 

 with white scales ; costa depressed basally, arcuated before the 

 apex. Extreme base and internal margin, for three-quarters of its 

 length from the base, covered with brilliant pale blue scintillate 

 scales ; these form a rather broad and prominent band on the inter- 

 nal margin. A large scarlet basal patch, sub-triangulate in shape, 

 extends from just beyond extreme base to about the middle of the 

 wing, leaving the costa narrowly black and margining straightly 

 the scintillate band on internal margin. Externally, this patch termi- 

 nates irregularly, forming a superior point, below which is a mode- 



