10 Notes on the Lepidoptera of America. 
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. 
Expanse, 6, 2.40 inch. Length of body, 1.40 inch. 
Habitat.—F lorida. (Melonville, 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 (Sesta fusic., 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. 
Sus-Famity, ZYGAENINAE. 
Mevancurora, Sfiibner. 
Melanchroia regnatrix, nh. s. 
(Plate 16, fig. 15, 2 .) 
é and 2. Head, moderate, held on a line with the boay, larger 
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 
