GENUS. GASTROPACHA? _Ochsenh._ Sphinx, _Drury_.
GASTROPACHA? OTUS. Alis elongatis integris luteo-fuscis, anticis fasciis
duabus denticulatis nigris. (Expans. Alar. 4 unc. 6 lin.)
SYN. Sphinx Otus. _Drury, Append. v._ 2.
Bombyx Agrius, _Oliv. Enc. Méth._ 5. 39. 56.
HABITAT: Smyrna (_Drury_).
_Upper Side._ The antennæ and head are of a reddish brown; the former are
strongly pectinated, and very broad in the middle, but at the extremities
very narrow and curled. Thorax dark brown. Abdomen reaching half an inch
below the wings of a reddish dun colour. Anterior wings dun colour; with
a large spot or patch, of a darker colour, situated on the posterior
margin, near the base. Two indented black lines run obliquely from the
anterior edge, near the tip, to the posterior near the middle; the space
between them being rather lighter than the rest. Posterior wings dun
colour, immaculate. All the wings, both on the under and upper sides,
appear very shining and glossy; the scales or feathers appearing, when
viewed through a microscope, very coarse and long. There is no tongue
discoverable in this moth.
_Under Side._ Breast and sides bright dun. The abdomen reddish dun. All
the wings dun-coloured. The lower indented line appears faintly through
the wing, of a dark brown colour, also a faint reddish brown indented
line runs across the posterior wings. The edges of all the wings are
entire.
This insect, which appears to have been overlooked by modern authors, seems
to form a connecting link between Zeuzera and Gastropacha, agreeing with
the former in the general form, and with the latter in the transverse
denticulated fasciæ on the anterior wings, and the curved antennæ feathered
to the tips.
{31}PLATE XVII.
[Illustration]