United States or New Zealand ? Vote for the TOP Country of the Week !
For instance, I observe in my son's cabinet that the males are darker than the females in the Lasiocampa quercus, Odonestis potatoria, Hypogymna dispar, Dasychira pudibunda, and Cycnia mendica. In this latter species the difference in colour between the two sexes is strongly marked; and Mr.
Cuvier, G., on the number of caudal vertebrae in the mandrill; on instinct and intelligence; views of, as to the position of man; on the position of the seals; on Hectocotyle. Cyanalcyon, sexual difference in colours of; immature plumage of. Cyanecula suecica, sexual differences of. Cychrus, sounds produced by. Cycnia mendica, sexual difference of, in colour. Cygnus ferus, trachea of.
Wallace informs me that we here have, as he believes, an instance of protective mimicry confined to one sex, as will hereafter be more fully explained. The white female of the Cycnia resembles the very common Spilosoma menthrasti, both sexes of which are white; and Mr. On the other hand, in many genera, as Mr.
Word Of The Day