. Entomology : with special reference to its biological and economic aspects. Comb of honey bee, showing the insect invarious stages. At the right are large queencells.âAfter Benton. 324 ENTOMOLOGY Larval Development.âWhen the brood cells are ready,the queen, attended by workers, lays an egg in each cell andhas no further concern as to its fate. After three days the eggdiscloses a footless grub (Figs. 279, 280) which depends at firstupon the milky food that bathes it and has been supplied fromthe mouths of the worker nurses. Later the larva is weanedby its nurses to pollen, honey and water. As


. Entomology : with special reference to its biological and economic aspects. Comb of honey bee, showing the insect invarious stages. At the right are large queencells.âAfter Benton. 324 ENTOMOLOGY Larval Development.âWhen the brood cells are ready,the queen, attended by workers, lays an egg in each cell andhas no further concern as to its fate. After three days the eggdiscloses a footless grub (Figs. 279, 280) which depends at firstupon the milky food that bathes it and has been supplied fromthe mouths of the worker nurses. Later the larva is weanedby its nurses to pollen, honey and water. As the stomach andthe intestine of the larva do not communicate with each other,the excretions of the larva cannot contaminate the surroundingnutriment, and they are retained until the final moult. Fivedays after hatching, the larva spins its cocoon, the workershaving meanwhile covered the larval cell with a porous cap Fig. Honey bee. /, feeding larva; p, pupa; s, spinning larva.âAfter Cheshire. of wax and pollen (Fig. 280) and on the twenty-first day afterthe egg was laid the winged bee cuts its way out, assisted inthis operation by the ever-attentive nurses. Now, after acquir-ing the use of its faculties, the newly emerged bee itselfassumes the duties of a nurse, but as soon as its cephalic nurs-ing glands are exhausted it becomes a forager. This accountapplies to the worker; the three kinds of individuals differ inrespect to the number of days required for development, asappears in the following table, from Benton: Egg. Larva. Pupa. Total. Queen, 3 5^ 7 ⢠I5^ Worker, 3 5 13 21 Drone, 36 15 24 The cells in which queens develop (Fig. 279) are quite dif-ferent from worker or drone cells, being much larger, more INTERRELATIONS OF INSECTS 3^5 or less irregular in form, and vertical instead of horizontal;they are attached nsnally to the lower edge of a comb or elseto one of the side edges. Other Facts.â


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectentomology, bookyear1