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Updated: May 18, 2025
Age, in relation to the transmission of characters in birds; variation in accordance with, in birds. Agelaeus phoeniceus. Ageronia feronia, noise produced by. Agrion, dimorphism in. Agrion Ramburii, sexes of. Agrionidae, difference in the sexes of. Agrotis exclamationis. Ague, tertian, dog suffering from. Ainos, hairiness of the. Aitchison, Mr., on sheep. Aithurus polytmus, young of.
The Ageronia feronia makes a noise like that produced by a toothed wheel passing under a spring catch, and which can be heard at the distance of several yards: I noticed this sound at Rio de Janeiro, only when two of these butterflies were chasing each other in an irregular course, so that it is probably made during the courtship of the sexes. See my 'Journal of Researches, 1845, p. 33. Mr. Ent.
Doubleday, H., on the proportion of the sexes in the smaller moths; males of Lasiocampa quercus and on the attraction of the Saturnia carpini by the female; on the proportion of the sexes in the Lepidoptera; on the ticking of Anobium tesselatum; on the structure of Ageronia feronia; on white butterflies alighting upon paper.
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