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Ovarian tubes of one side, in <em>Polistes</em>, showing eggs in all stages of development, with nutritive cells, <em>nm</em>, between; <em>rs</em>, seminal receptacle; <em>ov</em>, oviduct; <em>vag</em>, vagina

Sexual Organ of Insects

Ovarian tubes of one side, in Polistes, showing eggs in all stages of development, with nutritive…

Male organs of May-beetle. One side only beyond the ductus ejaculatoris, <em>duct</em>. <em>ejac</em>. ; <em>glm</em>., mucus glands; <em>ves</em>.<em>sem</em>., seminal vesicles; <em>vas</em>. <em>def</em>., vasa deferentia

Sexual Organ of Insects

Male organs of May-beetle. One side only beyond the ductus ejaculatoris, duct. ejac.…