More striking is the case of the Oak-eggar Moth (_Lasiocampa quercus_). Mr. Richard South, in his most useful “Moths of the British Isles,” relates that on one occasion he had a number of pupæ in a cage in a cottage on the edge of a moor near Lynton, North Devon, and these attracted quite a number of males into the room containing the precious casket, and he was enabled to capture several. The next day he placed a female which had meanwhile emerged, in a “roomy chip-box, and carried it, in a satchel, to the moor, where it was placed on the ground; the males began to arrive soon afterwards, and some fine examples were secured.” But the sequel is even more remarkable; for, he remarks: “Although the female was taken on the moor only on one occasion, that satchel continued to be an object of interest to the male Eggars for several days afterwards.” That this scent is capable of being transferred to foreign objects, and of retaining its power for several days, is a striking proof of its pungency, yet it is quite impalpable to human nostrils! The Kentish Glory Moth (_Endromis versicolor_) affords yet another instance of this curious attraction by scent, the effectiveness of which is not even lessened by exhalations of the human body, for if a virgin female be placed in a box, and this be placed in one’s pocket, the males will often swarm round one and even endeavour to gain access to the box. In all such cases the females, even when capable of flight—the female Vapourer is wingless—never fly until after impregnation has taken place. Hence males with defective scent—detecting powers inevitably fail to leave offspring. Selection, then, here lies between males of the most active scent-detecting powers, and not between those of the most brilliant colours. Nevertheless, both males and females—where the females are winged—exhibit a remarkably beautiful coloration, and this is especially true of the Kentish Glory, wherein both sexes wear a resplendent dress. That of the male—which is much smaller than the female—differs in that the fore-wings are darker, but bear the same pattern as in the female, while the hind-wings are chestnut-red instead of cream colour as in the female. If this scent-factor has replaced colour as an inciting agent to pairing, then these Moths should be of sombre hues. That such is not the case seems sufficient to show that the colour is not due to Sexual Selection, for it is highly improbable that scent and colour are both of equal importance, and this being so, one would expect to find the negligible factor eliminated.