. Evolution and animal life; an elementary discussion of facts, processes, laws and theories relating to the life and evolution of animals . d individuals (that is,young born from unfertilized eggs—as the honey-bee drones,certain whole generations of various gall flies, saw flies, aphids,etc., etc., regularly are) also the case of male bees, maleants, female aphids, etc., etc., theindividuals differ quite as much asdo individuals of the same speciesof bisexual parentage. Comparingthe variation in drone bees (par-thenogenetically produced) as com-pared with that of the workers(from fert


. Evolution and animal life; an elementary discussion of facts, processes, laws and theories relating to the life and evolution of animals . d individuals (that is,young born from unfertilized eggs—as the honey-bee drones,certain whole generations of various gall flies, saw flies, aphids,etc., etc., regularly are) also the case of male bees, maleants, female aphids, etc., etc., theindividuals differ quite as much asdo individuals of the same speciesof bisexual parentage. Comparingthe variation in drone bees (par-thenogenetically produced) as com-pared with that of the workers(from fertilized eggs), we find thatthis is true. The organs examinedfor variation in these series of bees were the wings, organsused by both drones and workers, and having no immedi-ate relation either structurally or physiologically to the differ-entiation of those two castes or kinds of individuals of thehoney-bee species. The workers are incomplete only in thatmost of them are infertile: in no other structural or physiologicalfeature of their makeup are they less complete: than thedrones. They are indeed distinctly the more specialized of. FIG. 93.—Fore and hind wingsof honeybee (drone), showingnormal venation. (After Kel-logg and Bell.)


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