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Eland, development of the horns of the. Elands, sexual differences of colour in. Elaphomyia, sexual differences in. Elaphrus uliginosus, stridulation of. Elaps. Elateridae, proportion of the sexes in. Elaters, luminous.

In Heterocerus, which belongs to another family, the rasps are placed on the sides of the first abdominal segment, and are scraped by ridges on the femora. In the Carabidae I have examined Elaphrus uliginosus and Blethisa multipunctata, sent to me by Mr. Crotch. Rasp. c. Coxa. f. Femur. t. Tibia. tr. Many Lamellicorns have the power of stridulating, and the organs differ greatly in position.

Butterflies are rare; the few are mostly Colias, Hipparchia, Polyommatus, and Melitaea; these I have seen feeding at 17,000 feet; when found higher, they have generally been carried up by currents. Of beetles, an Aphodeus, in yak-droppings, and an Elaphrus, a predaceous genus inhabiting swamps, are almost the only ones I saw.

Among the coleoptera, the Stachylinus is a rarity: the white-winged Cicindela nivea of Kirby is to be found in great abundance on the sand of the beach, which is of the same colour as itself; the Cic. nodicornis and angusticollis Dej. on the other hand, frequent the paths in the forests. Cosnania, which supplies the place of our Elaphrus, is found among the grass by the side of brooks.