Chorismagrion, Morton, 1914, Morton, 1914

Morton, Kenneth J., 1914, A remarkable new genus and new species of Odonata, of the legion Podagrion, Selys, from north Queensland, Transactions Entomological Society London 1914, pp. 169-172 : 170

CHORISMAGRION ,

nov. gen.

Nodus about one-third of the distance between the base of the Wing and the distal side of the pterostigma. Basal side of the quadrilateral absent in fore-wings as in Hemiphlebia . In hindwings, anterior side of the quadrilateral about 2/5 the length of the posterior.

A* separates from the inner margin distad to Cuq at above the level of the costo-distal angle of the quadrilateral. The two Anq placed at nearly equal distance from each other and from the base of the wing and nodus respectively. Cuq placed nearer l Anq, about 1/3 of the distance between 1 and 2 Anq. Cu1 arched at the base. M3 from or very near the sub-nodus, Rs at about 4 Pnq in fore-wings, and 3 Pnq in hind-wings. M2 three cells further* 1a about two cells still further (but rather unstable ranging from between one-third and one-half the distance between the nodus and the proximal side of the pterostigma). Supplementary sectors absent.

Second joint of antennae rather more than twice the length of the basal joint, the third longer than the first two together.

Legs slender with rather long and fine spines; claws long with a well-defined tooth. Superior appendages forcipate. Ligula cleft for about 1/3 of its length, the lobes rather narrowly separate, tapering but blunt at the apex.