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The History of A N I M A L 8.

Of the second division, beside the second described species, there are, i. The green andwhite-bodied Libellula, with a silky body, and a brown, marginal spot on each wing.2. The pale blue-bodied Libellula, with a black spot on each wing. 3. The blueand grey-bodied Libellula, with a black marginal spot on each wing. 4. The largeryellow and blue-bodied Libellula, with a brown spot on each wing.

Of the third division, or largest Libellulæ, which sit with their wings plane, thereare, beside the third described species, 1. The broad and short-bodied Libellula, withwings yellowish at the base, and white elsewhere. 2. The brovvn-bodied Libellula*with white wings, and a simple tail. 3. The Libellula, with the body yellow at it’ssides, and with white wings. 4. The black-bodied Libellula, with the thorax of abright green, with yellow lines, and with pale wings. 5. The brassy-green Libellula,with' pale wings, and with black legs. 6. The grey Libellula, with yellow wings,and a diphyllous tail. 7. The black-bodied Libellula, with the thorax of a yellowishgreen* variegated with black lines. .

TETRAPTERA.

Class the Fourth.

LE PI D OPT ERA.

Inscis which have four wings , and those all opake , and covered with afine dust } which , wh$n examined by the microscope , is found to be com-posed of regular scales , commonly called feathers. The mouth or trunk

in this class is usually spiral.

T HIS class comprehends the Butterflies and Moths, the Papiliones and Phalænæof authors. . The species are very numerous, and, after they are arranged into

two genera, according to this distinction, the Papilio and Phalæna, they may be di-vided into several other sets, according to certain obvious distinctions.

PAP I L I O.

H E antennas of the Papilio are of a clavated form.

Of the species of this genus some have four, others have six legs * they may

be arranged therefore, according to this distinction, into two divisions: of each ofthese divisions we shall describe three species, after which the others will be easily di-stinguished by their names.

Papilio tetrapus alis angulatis nigris , margine postico albido.

The four-legged Butterjly , with black wings , with the hinder edge white.

This is a very large Butterfly : the head is small, the body considerably thick and

oblong, and both these, and the antennæ and legs, are black : the wings are large, andare angulato-dentated; they are black on both sides, but have a white edge, and eachtwo white spots.

It is frequent in our woods : the caterpillar, produced from it’s eggs, feeds on theleaves of the birch-tree.

Papilio tetrapus alis angulatis fulvis nigro maculatis, fecundariis albo

notatis.

The four-legged Butterfly , with yellowijh-brown wings, t spotted with blacks

and the secondary ones with white.

The body of this species is oblong, and not very thick * the legs are slender, theircolour white; the wings are finuated, and are of a yellowish-brown without, and spot-

ted with black, having each, at the least, four distinct spots of that colour; they areof a greyish or ash colour on the under side, and the inner pair have each a white spot

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