Part 30

Local causes of colour-development, 216

Locusts, richly-coloured tropical, 94

Longicorns, 95

Lophornis ornatus, very pugnacious, 214

Lord Howe’s Island, white rail in, 264

Lubbock, Sir John, on colour-perception in insects, 255

Macaws, 100

Madagascar, white-marked butterflies of, 260

Madagascar once united to Africa, 325

Madagascar and Malaya, resemblances of fauna of, 328

Male birds, origin of ornamental plumage of, 205

Male birds which incubate, 212

Male humming-birds produce a shriller sound, 215

Males, theory of display of ornaments by, 207

Malva sylvestris, M. rotundifolia, 233

Mammals, 116

Mammalia, supposed variations of, comparable to those of butterflies, 261 local resemblances of, in Africa, 262

Mammalia of Palæarctic Region, 315 of Ethiopian Region, 317 of Oriental Region, 319 of Miocene period in Euro-Asia, 321

Man, antiquity and origin of, 280 indications of extreme antiquity of, 285 highly developed at very early period, 286 antiquity of intellectual, 290

Mangroves, 58

Manicaria saccifera, 41

Mantidæ, 91

Mantis resembling an orchis-flower, 173

Marantaceæ, 47

Marmosets, 118

Marshall, Messrs. on barbets, 106

Martins, M. Charles, on increased size of leaves of arctic plants, 236

Mates readily found by birds, 200