165 
anticis sub apicem emarginatis ; posticis elongatis et in caudam 
latam mediocrem extus oblique extensam, productis. 
Expans. alar. antic. unc. 5. 
Hab. in partibus calidioribus Americze Meridionalis, Venezuela. 
In Mus. Westw. 
The general colour of the wings of this species is dark brown, with 
a purplish leaden kind of gloss; the fore wings are traversed towards 
the base (which is of a rich chestnut colour) by two nearly straight 
chestnut fascize, followed by a shorter one of the same colour cover- 
ing the transverse veinlets at the extremity of the discoidal cell, a 
short distance beyond which is another straight fascia of the same 
colour ; half way between which and the tip of the wing are two dull 
sooty fascize, diffused towards the costa, and condensed in the middle 
of the wing into two closely approximated strigee ; beyond the outer 
of these strigee the broad margin of the wing is chestnut-brown, the 
spaces between the veins being of a greyer tint; the hind wings are 
of a more uniform brown colour, with a broad darker brown central 
fascia, and the wide outer margin redder brown, preceded by a grey- 
ish cloud. The fore wings are somewhat falcate, being truncate at 
the tip, with a rather deep emargination below the extremity ; the 
hind wings are elongated, the anal angle rounded off, and the outer 
margin is produced into a wide tail three quarters of an inch long, 
extending outwardly ; the outer margin between the tail and the outer 
angle has two moderately deep and wide emarginations. The body 
is small and slender, of an uniform greyish brown colour, without a 
distinctly coloured grey fascia in front of the thorax. 
The antennze in the only specimen I have seen (which I believe is 
a female, notwithstanding the slenderness of the body) are rather 
short, and composed of forty-two short joints, each producing two 
short pectinations on each side; these pectinations gradually decrease 
in length from the base to the extremity, where the antenne are quite 
thin and acute. The palpi are rather broad, and the spiral maxillz 
are distinct, but very slender and weak. 
The costal vein of the fore wings extends about three-fifths of the 
length of the costa; the postcostal vein emits a branch at. about one- 
third of the length of the wing, which runs close behind the costal 
and beyond it almost to the tip of the wing; the discoidal cell ex- 
tends rather more than one-third of the length of the wing; it ter- 
minates transversely, the postcostal vein emitting a second branch at 
its anterior termination; this second branch is furcate at a short 
distance beyond the cell, the upper division of the fork extending to 
the tip, the lower division to the outer margin below the tip, and the 
postcostal itself extending to the upper angle of the emargination be- 
low the apical truncature of the wing; the transverse vein closing. 
the discoidal cell emits a vein from its centre, and joins the third 
branch of the median vein at a short distance beyond its origin; the 
hind wings have the branches of the median vein arising near the anal 
margin of the wing, and the discoidal cell is closed by a very oblique 
veinlet, which emits a vein above its middle, which vein extends to 
the anterior extremity of the tail of these wings. 
