



156 BRITISH MOTHS 
. CALOCAMPA, Srepuens, Guinte. 
This genus is very closely allied to such of the preceding species as X. semibrunnea, which have elongated 
wings, which is peculiarly the case in the present group; the peculiarly quadrate thorax, with the lateral anterior 
angles produced, is also a character they possess in common, although not represented by Mr. Curtis in his 
delineation of the type of the group, which he unites with the other Xylinez. The antenne are robust and 
ciliated with hairs beneath in the males, and the labial palpi have the terminal joint short and not exposed. 
The fore wings have the cilia somewhat dentated. The caterpillars are smooth, very much elongated, and varied 
with gay colours, and they feed upon various low-growing plants. They descend to a considerable depth into the 
earth to undergo their transformations. The perfect insects are autumnal. 

SPECIES 1.—CALOCAMPA EXOLETA. Puare XXXI., Fie. 9, 10. 
Synonymes.—Phal. Noct. exoleta, Linn. ; Hiibner; Boisduval ; Haworth; Stephens; Donov. 6, pl. 187; (larva). 
Curtis, Brit. Ent. pl. 266; Wilkes 8, pl. 18. 
This fine species measures from 2 to 2} inches in the expanse of the fore wings, which have the anterior or 
costal portion brown, the inner portion grey or ashy brown, and the apical portion more buff. Towards the 
base are numerous very slender black pencilled lines, forming various zig-zags, and which are in effect the 
ordinary basal strige singularly displaced* ; the stigmata are near together, towards the middle of the wing 
they are but slightly indicated by a dark, slender, marginal line ; the posterior, however, has a dark patch on its 
hinder part ; annexed to this are several wedge-like, dark streaks, and between these and the apical margin are 
one or more arrow-headed slender marks, and a double row of small black dots placed on the veins, the margin 
itself marked with conical dusky dots; the hind wings are greyish brown, with a darker lunule towards the base ; 
the margin with a row of small dark dots, and the cilia pale ochre. The front of the thorax is pale ochre, with 
two dark arches between the base of the fore wings, and the hind part of the thorax dark brown-grey. The 
caterpillar is green, dotted with white, with a yellow lateral line and a red one above the feet on each side. It 
feeds on various low plants, especially the Iris and Serratula tinctoria, and the moth appears at the close of the 
autumn as well as at the beginning of summer. It is a comparatively rare but widely-dispersed species. 

SPECIES 2.—CALOCAMPA VETUSTA. Puare XXXL, Fie. 11, 12. 
Synonymes.— Noctua vetusta, Hiibner ; Treitschke ; Duponchel ; Boisduval ; Stephens. 
N. exoleta, Donovan, vol. 6, pl. 187 (imago) ; Esper. 
This species is very closely allied to the preceding, measuring rather more or less than 2 inches in the expanse 
1 , ae ~ ° ° . . * . 
of the fore wings, which are of a richer tone than in that species ; the anterior stigma is almost obsolete, and the 
outer one accompanied by a single black dot ; the inner margin of the wing darker brown, and the apex of the 
wing with more strongly-marked, zig-zag, pale and dark streaks. The caterpillar is d 
white, with a pale lateral line, in which are placed the spiracles, which are red. 
Darenth Wood, at the beginning of September. 
ark green, spotted with 
It feeds on Carex. Rare. 

* Tt would be an interesting object of inquiry to trace the m 
anner in which the typical markings of this extensive family become modified 
or lost as we approach the confines of the group. 

