INDEX.

Cucullia verbasci, 120.
Curculionidæ, often protected by hard covering, 120; similar colours of two sexes, 114.
Cuviera squamata, 258.
Cyclopeplus batesii, 92.
Cynopithecus, 196.
Cynthia arsinoë, 172.
Danaidæ, the subjects of mimicry, 85, 86.
Danais erippus, 88; chysippus, 112; sobrina, 179; aglaia, 179; tytia, 180.
Darwin, Mr., his principle of utility, 47; on cause of colour in flowers, 127, 262; on colours of caterpillars, 118; on sexual colouration, 260; his metaphors liable to misconception, 269; criticism of, in North British Review, 291.
Desert animals, colours of, 49, 50.
Diadema, species of, mimic Danaidæ, 86, 87; female with male colouration, 112.
Diadema misippus, 112; D. anomala, 113.
Diaphora mendica, 89.
Dicnyodontia, 299.
Dicrourus, 253.
Diloba cœruleocephala, 120.
Dimorphism, 145; in beetles, 155; in birds, 155; illustrated, 157.
Dinosauria, 298.
Diptera mimicking wasps and bees, 97.
Doliops curculionides, 94.
Domesticated animals, their essential difference from wild ones, 38-41.
Dotterell, 251.
Drusilla, mimicked by three genera, 181.
Drusilla bioculata, 180.

363