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296 about 200 different species inhabit this country. As an example of this order we have figured

PHRYGANEA GRANDIS. XXX. Fig. 1. Linn. De Geer, II. 388, Pl. 13, fig. 1. Kirby and Spence's Introd. III. 68, Pl. 3, fig. 4.

upper wings are brownish grey, with cinereous spots, a longitudinal black ray and two or three white points at the extremity; antennæ as long as the body. Found plentifully in many parts of the Continent, and not unfrequently in Britain.

name of this order being derived from υμην, a membrane, is not distinctive, the wings of several other orders being likewise membranous. They are four in number, and of a uniform texture throughout, the upper pair being always larger than the under pair. They are permeated by a considerable number of nervures, which usually radiate from the base, and form areas of greater or less extent over the surface, but these are never so small and numerous as to resemble the reticulated wings of the Neuroptera. The mouth essentially consists of mandibles, maxillæ, an under and upper lip, and palpi. The females are provided with an ovipositor,—sometimes resembling a pair of saws, and at other times assuming that modification of form in which it is named a sting,—and the tarsi are in most cases pentamerous. These general properties may suffice to separate