THE BRIMSTONE- MOTH. 
249 
tinged with red ; the back with two hom-like pro- 
tuberances. Its favourite food is the haivthom, but 
it likewise frequents the sloe, apple-tree, bramble, 
&c. The moth is one of our more common species, 
and is distributed over the whole island. It is 
found from April to October or November, there 
being several broods in the year. 
SWALLOW-TAIL MOTH. 
Ourapteryx Samhucaria. 
PLATE XXVII. Fig. 2. 
Phal. Geom. Sambuearia, Linn.; Don. v. PI. 170 Swallow- 
tail Moth, Wilhs, P1.78 ; Harris . — Ourapteryx Sambuearia, 
Leach, Zool. Mag. i. PI. 35, fig. 2. 
The most characteristic feature in the present genus 
is that to which both the generic and English names 
refer, namely, the prolongation of the hinder wings 
into a pretty lengthened acute tail. The anterior 
wings are likeivise very acute at the tip, and some- 
what falcate, the margin entire. The antennse are 
of moderate length and simple in both sexes ; the 
palpi short, tlie proboscis nearly as long as the 
antenuEB. The caterpillar has six pectoral legs, and 
four prolegs at the hinder extremity. The Swallow- 
tail is one of the largest of our native geometrine 
mothSj the extent of the -wings frequently measuring 
