CLASS V. INSECTA. 235 
Ili this section I shall enumerate tlic whole of the British species. 
Stirps 1. — Caterpillar elongate, cylindric: chrysalis elongate, angu- 
lar: tarsi of the imago with distinct nails. 
Genus 311. PAPILTO. Falir., Lutr,, Leach. 
Antenna, at their points, furnished with a conic-ovate or lengthencd- 
ovate, somewhat arcuate, club : palpi very short, pressed close to the 
face, scarcely reaching the clypeus ; the two first joints of equal 
length • the third minute, and nearly obsolete : feet in both sexes 
alike, all being formed for w'alking, and furnished with distinct but 
simple claws: anterior wings generally somewhat falcate; hinder 
ones often tailed ; the internal margin excised or folded to admit of 
free play to the abdomen. 
The caterpillar is tentaculated, fleshy and furcate. The chrysalis 
■tngulated, with two processes before ; it fastens itself by a trans- 
verse thread, 
The species of this genus, which constitutes the most beautiful 
part of the creation, are found chiefly in the warmer regions, very 
few occurring in the more temperate parts of the world. Their 
flight is extremely rapid. 
op- 1. Pap. Machuun. Black and yellow ; hinder wings tailed; edges 
ot the wings black, with yellow crescents; the tips of the hinder 
ones with a red spot at their inferior tips. {PI. 5. fig. 1.) 
apilio Machaon. I. inn., Babr., Haworth. 
Inhabits Europe ; the larva feeds on umbelliferous plants. 
In England it is ealled the Swallow-bailed butterfly; it is very lo- 
cal, but occurs near Bristol, Beverley in Yorkshire, and has been 
taken plentifully in Hampshire near the New Forest. It is the 
most superb of all the British species of this family. The cater- 
pillar is ^fecn, banded with black, marked by a row of red spots, 
it changes into the chrysalis state in July; and the fly is found in 
August. There are two broods ; the first appears in May, having 
lain in the pupa state all the winter. 
Papilio Podulirius of Linne, which belongs to this genus, has been in- 
troduced into the British Fauna on very dubious authority. But 
^Ir. Haworth is yet in hopes of receiving indigenous specimens from 
Yorkshire. 
Genus 312, CONEPTERYX. Leach. Colt as. Fahr., J.atr. Pj- 
eris. Schrank. 
Antenna short, gradually thickening into an obconic head : palpi short, 
m <ich compressed; the last joint very short :fcet alike in both sexes, 
Ml with a bifid or unidentate nail : wings angulated, large, the hinder 
ones grooved to receive the abdomen : chrysalis angulated with a 
thread round its middle. 
