
AND THEIR TRANSFORMATIONS, 53 
and the margin is an ¢ i : : : F : : 
- gin 1s an arched stripe extending across the wing, the margin being cinereous. The hind wings are 
pale-grey or reddish-brown, with an indistinct central paler streak. 
The Co Yr 1 ret : is < by te { 7 i =] ~ ” ’ 
aterpillar is black or brown, with two red setigerous tubercles on the back of each segment, a yellow 
line above the feet, : , verse whi jie : 
the feet, and short transverse white stripes. They feed on the sloe and other fruit-trees, whitethorn, 
&c., being full fed at the end of June; previously to this period they reside in company under a common web, 
whence they migrate during the night for feeding, but return before sunrise. They, however, separate to form 
their cocoons. The perfect insect appears in February and March, sometimes remaining several years in the 
chrysalis state. It is by no means a rare species. 


CNETHOCAMPA, Srepnens*. (THAUMETOPZA, Hiner). 

This group has the wings rather elongated and sub-diaphanous; the body moderately thick, but tufted to 
the tip in the females; the palpi very short and three-jointed ; the antenne short, slender, and bipectinated 
in the males ; the fringe of the wings elongate. The larve are cylindrical, and hairy. They inhabit a common 
web in society, whence they emerge im procession, as described by Reaumur and other authors ; and it is within 
this web that Cn. processionea undergoes its transformations. Cn. pityocampa and some other Continental 
species, on the contrary, bury themselves under ground. 

SPECIES 1.—CNETHOCAMPA PITYOCAMPA. Ptare X., Fie. 5, 6. 
SynonyMes.— Bombyx Pityocampa, Fabricius; Hiibner (Bom- | (Cneth. Pityo.) 
byx, pl. 36, fig. 161); Stephens ; Wood, Ind. Ent., t. 6, f. 48. Thaumetopea Pityocampa, Hiibner, Verz. bek. Schm. 
g. 
The fore wings measure 12 inches in expanse, and are of a greyish colour, with three undulated dark streaks, 
and a central dusky lunule ; the hind wings whitish, with a dusky spot at the anal angle. The body is grey, 
with the abdomen fulvous brown. 
The caterpillar is described by Fabricius as hairy, and of a blue-grey colour, with yellow spots on the back, 
and a black head. It feeds on pines and firs. 
This species is introduced into the British lists on the authority of a single small specimen or variety in the 
British Museum, stated to have been captured by Dr. Leach in Devonshire in the summer of 1825. 
CNETHOCAMPA PROCESSIONEA (Linneeus; Wood, Ind. Ent. t. 53, f. 34), so named from the extreme regu- 
larity with which the caterpillars march from their nests during their feeding excursions, was introduced into 
our lists by Martyn and Stewart ; but it is very questionable whether the species is indigenous. It is generally 
smaller than the preceding, with ashy-brown wings, with three dusky streaks, and a brown abdomen; the 
female having the markings more indistinct. 

* Derived from the Greek, in allusion to the excessive irritation produced by the hairs of the caterpillars upon the naked skin. 

