Notes on the Lejndoptera of America. 441 



and the base of the wing. Under surface of posterior wings, 

 bright red, paler than upper surface ; at extreme base some ochre- 

 ous and yellowish white scales. 



Mcpanse, $ , 2.40 inch. Length of body, 1.40 inch. 



Habitat.— Florida. (Melon ville, Fla., " February "— Chas. 

 Linden !) 



Distinguishable from H. thysbe, by its stouter form, the 

 edentate inner margin of the terminal band of the $ primaries, 

 and by the differently colored feet. 



H. fuscicaudis (Sesiafusic, Walk.) is unknown to us, but we 

 have examined a drawing of this species made under the 

 superintendence of Mr. Walker, which shows it to be much 

 nearer allied to H. thysbe than the present species, since it is 

 slenderer and shows the inner margin of the terminal band 

 of the $ primaries to be plainly dentate as in H. thysbe, while 

 the absence of the olivaceous lateral shades on the terminal 

 abdominal segments is the only prominent character which 

 distinguishes Mr. Walker's Sesia fuscicaudis from Fabricius' 

 species, to judge by the brief diagnosis of the former given in 

 the British Museum Lists. 



Family, ZYGAENIDAE. 



Sub-Family, ZYGAENINAE. 



Melancheoia, Hilhier. 



Ulelanchroia regnafrix, n. s. 



(Plate 16, fig. 15, 3 .) 



$ and 2 • Head, moderate, held on a line with the body, lai'ger 

 in the male, in which sex also the eyes are fuller and more promi- 

 nent. Above, bright metallic blue ; beneath, the small labial palpi 

 are fulvous ; maxillae, moderate, dull fulvous. Antennae, black, 

 with a sub-cyaneous tinge on the stem above ; plumose in the 

 male, in which sex the pectinations are twice as long as in the 



