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Water scorpion, Laccotrephes maculatus Fabr. is unisexual and exhibits sexual dimorphism. The males are relatively smaller with conspicuous connexival spine and possess distinct external genitalia. The male reproductive organs include a pair of testis, a pair of vasa deferentia, a pair of vesicula seminalis, two pairs of accessory glands and unpaired median ductus ejaculatorious. The female reproductive organs possess a pair of ovaries, a pair of lateral oviducts, a common oviductus communis, a vagina and the spermatotheca. |
