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In certain species in the genus Gomphus the males are equally in excess, whilst in two other species, the females are twice or thrice as numerous as the males. In some European species of Psocus thousands of females may be collected without a single male, whilst with other species of the same genus both sexes are common.
Godron, M., on variability; on difference of stature; on the want of connexion between climate and the colour of the skin; on the colour of the skin; on the colour of infants. Goldfinch, proportion of the sexes in the; sexual differences of the beak in the; courtship of the. Goldfinch, North American, young of. Goldfish. Gomphus, proportions of the sexes in; difference in the sexes of.
In the allied genus Gomphus, on the other hand, and in some other genera, the sexes differ but little in colour. In closely-allied forms throughout the animal kingdom, similar cases of the sexes differing greatly, or very little, or not at all, are of frequent occurrence.
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