1863.] 
9 
ial palpi arched, reaching about the middle of the front, (but in the 
dried specimen decumbent or porrected) cylindrical, slightly hirsute; 
terminal joint pointed, as long as the second. Tongue naked, of mod¬ 
erate length. 
G. impigritella.—Fore wings dark bronzy-brown, with a conspicuous, curved 
silvery-white streak, arising from the basal third of the inner margin, where 
it is widest and curving to the middle of the wing and dark margined on both 
sides, On the costa are five short, silvery-white streaks, the first oblique, the 
others nearly perpendicular, all of which are black margined internally, the lines 
which form these margins are more or less distinctly extended across the wing. 
That of the first and second costal streaks meet just above the end of the con¬ 
spicuous dorsal streak from the inner margin. Between the costal streaks, the 
wing is slightly touched with golden-brown. Opposite the first and second cos¬ 
tal streaks, is a small white spot on the inner margin, the curved black margi¬ 
nal line of the second costal streak touching its inner side. At the tip of the 
wing is a conspicuous round black spot, and beneath it, in the cilia, is a silvery 
gray hook, and the cilia of the extreme tip is slightly touched with a silvery 
hue. Hind wings and cilia of the same hue as the fore wings. 
Antennae and head dark bronzy-brown. Labial palpi whitish, with fuscous 
exteriorly. Feet annulated with white. 
Taken on wing in July. 
This insect is very like Q. eqidtella of Europe. The darker color 
of our species, the dark margined silvery streaks and the absence of 
silvery-violet spots, are the chief differences. The European species 
burrows in the shoots of Sechim acre (Stone-croper Wild Orpine) and 
probably our species may be found in the same plant or another of the 
genus Sedum. 
GRACILARIA Zeller. 
Proc. Acad. Hat. Sci. Jan. 1860, p. 6. 
Wings with long cilia. Hind wings narrowly lanceolate; the costa 
is concave or excised in the middle. The costal vein is short, entering 
the costa at the beginning of the concavity. The subcostal vein is 
simple and runs near the costa, and is much attenuated posteriorly. 
The discal vein runs through the middle of the unclosed cell, arises at 
the hase of the icing much attenuated^ and is connected l>y an inoscida- 
ting^ minute hranch with the subcostal vein about the middle of the 
wing, and becomes furcate at its extremity. The median vein is plac¬ 
ed near the inner margin and is three-branched. 
Fore wings lanceolate. The discal cell is long and narrow and the 
subcostal vein is attenuated towards the base, and gives off a single, 
rather long, marginal branch, quite near the base of the wing. From 
