The Reproductive Biology of Hippelates collusor (Diptera: Chloropidae). I. Morphology of the Reproductive Systems, with Notes on Physiological Aging1,2

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Abstract
The external male genitalia are composed of the genital capsule, the articulated first surstyli, the nonarticulated second surstyli, the aedeagus, the parameres, and the ejaculatory apodeme. The internal male reproductive system consists of the ejaculatory duct, vas efferens, accessory glands, and the testes. The ovipositor is the primary external genitalic structure of the female. The vagina, seminal receptacle, a paired coiled spermatheca, common oviduct, lateral oviducts, and the ovaries comprise the internal reproductive system of the female. Parous females were distinguished from nulliparous ones by a distended common oviduct, loose appearing ovarioles, follicle cell residues in the ovarioles, and sperm in the spermatheca.