AND THEIR TRANSFORMATIONS. 83 
the fore wings with the base and margins darker, the veins but slightly indicated, and the fringe long and 
blackish ; the antenne eighteen-jointed, fourteen only being deeply pectinated, the stem being whitish. 
This species is found in grassy places, amongst furze, on heaths and forests in the South of England, in the 
month of June. 


SPECIES 5.—FUMEA NITIDELLA. Puare XVI., Fie. 10. 
Synonymes.— Psyche nitidella, Wiibner; Ochsenheimer; Curtis; Stephens. Fumea nitida, Haworth. 
This species measures scarcely half an inch in expanse. Its wings are somewhat more elongated than in 
the other species ; they are brown and shining, with the veins darker, and the margins of an ashy-white colour. 
The antenna are greyish brown, and long with short pectinations ; the hind wings are rounded, clearer coloured 
than the upper wings. 
The caterpillar incloses itself in a case formed of bits of grass arranged longitudinally, as represented in our 
figure near the tip of the left wings of the male of Apoda testudo (fig. 5). The moth is very rare, but has been 
found several times near Darenth Wood in J uly. 
Fumes Bomsyceiia, Hiibner, Ochsenheimer, and our plate 16, fig. 14, was given by Stephens as identical 
with the Fumea muscea of Haworth, but it is not a British species. It is larger than any of the preceding, with 
the wings rounded, and of a livid colour, freckled with brown spots. 

PSYCHE, Srerpuens. STERRHOPTRYX, Huvener. 
The typical species of this genus differs from the other Sack-triigers by having short antenne with short curved 
pectinations in the male, and very short and slender ones in the females. The fore wings are elongate, triangular, 
with the veins arranged in a curious manner, the third branch of the median vein being forked close to its origin, 
They are very transparent, and but slightly hairy. The female is small, but very robust ; destitute of wings, 
with the legs short ; the extremity of the body clothed with a woollen mass, with the ovipositor exserted. 

SPECIES 1—PSYCHE FUSCA. Prare XVI., Fie. 16, 17, 26, 27, 28. 
Synonymes.—Wudaria fusca, Haworth ; Stephens (Psyche f.) Psyche calvella, Ochsenheimer; Germar; Boisduval. 
Tinea hirsutella, Hiibner, Tin., tab. 1, f. 5. Sterrhoptryx calvella, Hiibner, Verz. bek. Schm. 
The male of this curious species measures about three-quarters of an inch in the expanse of its fore wings, 
which are of a very pale uniform grey-brown colour, without any spots or markings, and transparent ; the antenne 
of the males dusky brown, the abdomen pale-ashy coloured, with an ochreous tinge. The female has the head and 
thorax shining brown, and the sides of the abdomen grey. 
The caterpillar is fleshy white, with the head and three anterior segments of the body spotted with dark 
brown, the spots varying in size, the legs increase in length, thus resembling the larve of Oiketicus of Guilding, 
figured in the Linnzan Transactions. The case is composed of bits of leaves and sticks fastened together without 
the least regularity. The caterpillar feeds on the leaves of oak, willow, whitethorn, and hazel, in June and July, 
and the moth appears in the latter month. I have an extended series of observations on the natural history of 
this insect in manuscript, illustrated with numerous figures, having, in company with Mr. Ingpen, found the larvee 
in Hornsey Wood, Middlesex, in 1827. It has also been found in other adjacent localities, but Mr. Ingpen 
informs me that he has more recently searched for the larve in vain, although we found them in the utmost 
profusion. 

