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Walsh, B.D., on the proportion of the sexes in Papilio Turnus; on the Cynipidae and Cecidomyidae; on the jaws of Ammophila; on Corydalis cornutus; on the prehensile organs of male insects; on the antennae of Penthe; on the caudal appendages of dragonflies; on Platyphyllum concavum; on the sexes of the Ephemeridae; on the difference of colour in the sexes of Spectrum femoratum; on sexes of dragon-flies; on the difference of the sexes in the Ichneumonidae; on the sexes of Orsodacna atra; on the variation of the horns of the male Phanaeas carnifex; on the coloration of the species of Anthocharis.
Cygnus immutabilis. Cygnus olor, white young of. Cyllo Leda, instability of the ocellated spots of. Cynanthus, variation in the genus. Cynipidae, proportion of the sexes in. Cynocephalus, difference of the young from the adult; male, recognition of women by; polygamous habits of species of. Cynocephalus babouin. Cynocephalus chacma. Cynocephalus gelada.
Parrots, change of colour in; imitative faculties of; living in triplets; affection of; colours and nidification of the; immature plumage of the; colours of; sexual differences of colour in; musical powers of. Parthenogenesis in the Tenthredinae; in Cynipidae; in Crustacea. Partridge, monogamous; proportion of the sexes in the; Indian; female. Partridge-"dances."
Smith, F., on the Cynipidae and Tenthredinidae; on the relative size of the sexes of Aculeate Hymenoptera; on the difference between the sexes of ants and bees; on the stridulation of Trox sabulosus; on the stridulation of Mononychus pseudacori. Smynthurus luteus, courtship of. Snakes, sexual differences of; mental powers of; male, ardency of. "Snarling muscles."
It is hardly worth while saying anything about the proportion of the sexes in certain species and even groups of insects, for the males are unknown or very rare, and the females are parthenogenetic, that is, fertile without sexual union; examples of this are afforded by several of the Cynipidae. Walsh in 'The American Entomologist, vol. i. 1869, p. 103.
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