Page:Jardine Naturalist's library Entomology.djvu/295

Rh Kirby, loc. cit. f 10, g′;) f, the upper lip, (labrum;) 7 a, the external lobe, and 7 a b, the internal lobe of the maxillæ; ax, the membranous base of the lower lip; g a, the lower lip; g b, the basal joint, and g c c, the outer joint of the labial palpi, (outer lobes of the labrium, K. and S.)

The abdomen of most Neuropterous insects is of great length, compared with the other primary segments of the body. It is remarkably long and slender in the genus Agrion, particularly in the South African species and its allies, (A. Linearis, Fabr. Leste Lucretia, Leach.) That of the male commonly terminates in two or three prehensory appendages; sometimes, in both sexes, in two or three long slender tails or filaments; and in Panorpa it ends in an articulated tube terminating in a hook. The legs,