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Rh the posterior ones; legs black. A native of the country round New York.

ÆSHNA GRANDIS. XXVIII. Fig. 1. Lib. Grandis, Linn. Fabr. Donovan's Brit. Ins. X. 30, Pl. 337, fig. 2. Harris Expos. Pl. 12, figs. 1, 2. Roesel Insects, IV.

genus includes the largest four native dragon-flies. The horizontal position of the wings, when at rest, distinguishes it from Agrion, to which it is in many respects very closely related, and the long narrow abdomen, which never approaches to the diameter of the thorax, is the most obvious distinction from Libellula. The two posterior ocelli are placed on a transverse ridge, and the central lobe of the labium is rather large, while the two lateral ones are divergent, armed with a strong tooth, and having a spinous appendage attached to them. The larva and nymph are more elongated than in Libellula, and the structure of the mask is somewhat different. About half a dozen species occur in Britain. ''Æ. grandis'' is two inches and a half in length, of a fulvous brown colour, with two yellow stripes on each side of the thorax, the abdomen variegated with green or yellow. It is of occasional occurrence on moors, marshes, &c. throughout the country.

NEMOPTERA ANGULATA, West.

XXVII. Fig. 3.

Westwood; Trans. Ent. Soc. Vol. 1, p. 75. the family Panorpidæ, which contains but few