A certain beetle (Sitaris) lays its eggs at the entrance of the galleries excavated by a kind of bee (Anthophora), each gallery leading to a cell. The young larvæ are hatched as active little insects, with six legs, two long antennæ, and four eyes, very different from the larvæ of other beetles. They emerge from the egg in the autumn, and remain in a sluggish condition till the spring. At that time (in April) the drones of the bee emerge from the pupæ, and as they pass out through the gallery the Sitaris larvæ fasten upon them. There they remain till the nuptial flight of the Anthophora, when the larva passes from the male to the female bee. Then again they wait their chance. The moment the bee lays an egg, the Sitaris larva springs upon it. Even while the poor mother is carefully fastening up her cell, her mortal enemy is beginning to devour her offspring, for the egg of the Anthophora serves not only as a raft, but as a repast. The honey, which is enough for either, would be too little for both, and the Sitaris, therefore, at its first meal, relieves itself from its only rival. After eight days the egg is consumed, and on the empty shell the Sitaris undergoes its first transformation, and makes its appearance in a very different form.... It changes into a white, fleshy grub, so organised as to float on the surface of the honey, with the mouth beneath and the spiracles above the surface.... In this state it remains until the honey is consumed, and, after some further metamorphoses, develops into a perfect beetle in August. [Sidenote: Wonderful Instinct of the Beetle] The beetle has sense organs; therefore she feels. But we have no reason to suppose that she remembers or thinks. Memory would be of little use to her; therefore parsimonious Nature bestows little or none. Cast adrift in a hostile world, she must come into existence ready armed by instinct for the battle of life. She has no time to learn, and during the rapid and strange changes in her career has little opportunity of acquiring knowledge that could beneficially guide her future conduct. Since memory and its corollary reflection are most developed in the highest animals, and are imperceptible in the lower, they are clearly later and higher products of evolution than instinct. [Sidenote: Man’s Helplessness at Birth]