LEPIDOPTERA. 303 
approximate the posterior extremity of the body to the anterior, or 
that which is fixed; they cling with the anal feet, disengage the first, 
and move the body forwards, when they recommence the same ope- 
ration. Their attitude when at rest is singular. Fixed toa branch 
of some plant by the anal feet only, their body remains extended in a 
straight line in the air, and absolutely motionless. So closely does 
the skin resemble the branch in its colour and inequalities, that it 
is easy to confound them. In this way and at an angle of forty-five 
degrees, or more, with the limb to which they are attached, these 
animals remain for hours and even days. 
The chrysalides are almost naked, or their cocoon is extremely 
thin, and poorly furnished with silk. 
This section, exclusive of the caterpillars, contains but one sub 
genus, or ; 
PHALENA proper. 
The caterpillar of the Phalena margaritaria, Fab., has twelve 
feet *; the others have but ten. 
P. sambucaria, L.; Rees., Insect. I, Class IIT, Pap. Noct., VI. 
One of the largest that inhabits France; sulphur-coloured; wings 
extended and marked with brown, transverse stripes; the infe- 
rior prolonged at the external angle in the manner of a tail, 
where two small blackish spots may be observed. 
The caterpillar is brown, resembling a little stick both in 
form and colour. The head is flat and oval. With this species 
and some others, of which the inferior wings have a similar 
shape, Dr. Leach has formed the genus Ourapteryz. 
P. syringaria, L.; Rees., [bid., X, where the antenne are pec- 
tinated in the male, whose wings are jaspered by a mixture of 
yellowish, brown, and reddish. 
The caterpillar has four stout tubercles on its back, in addi- 
tion to smaller ones, and a horn or hook on the eighth ring. 
P. grossularia, Rees., Ibid., I. Wings white, spotted with 
black ; two bands of pale yellow on the upper ones, one near the 
base, and the other a little beyond the middle. 
The caterpillar is bluish-grey above, spotted with black; in- 
ferior side and venter yellow, dotted with black. 
The female of the Ph. brumata, L., as well as those of some 
analogous species, have mere rudiments of wings. They only 
appear In winter fF. 
De Geer describes a species (Ph. & six ailes), the male of 
which appears to have six wings, the inferior ones with a little 
appendage which is laid on them f. 
The eighth section of the Nocturna, that of the Dettorpss, 
Lat. §, consists of species very analogous to true Phalene, but 
a a a a Sle ce 
* The type of my subgenus METROCAMPE. 
+ They form my subgenus HyBeRNIA. 
t For the other species, see Fabricius and Hiibner. 
_ § In the first edition of this work, this section comprised all the Phalene pyra- 
lides of Linneus. A complication of characters, however, was the result, which 
disappears by merely including the Herminie. That of the Tinzites will then con- 
sist exclusively of the Tine, and Pseudo-Tinee of Reaumut. 
