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2012年49 No.6
Morphological and histological observations on the reproductivesystem of Holcocerus hippophaecolus
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Key Words：Holcocerus hippophaecolus，male reproductive system，histological observation
Abstract：Holcocerus hippophaecolus Hua，Chou，Fang et Chen ( Lepidoptera，Cossidae) is endemic to China and a
serious pest of seabuckthorn forest that has caused tremendous losses． Large-scale outbreaks of this pest have beenreported since 2001． This paper describes morphological and histological characteristics of the male and femalereproductive system of H． hipophaecolus and differences in the male reproductive system before and after mating． Inunmated males，the seminal vesicles，accessory glands and ejaculatory ducts are white and contain a large number ofsperm bundles． However，in males that have mated，the reproductive system is transparent and translucent． Spermbundles can be observed in the testis，seminal vesicles and ejaculatory ducts in addition to the accessory glands． Thisobservation，and especially the distribution of sperm bundles，can be used to distinguish between mated and unmatedmales． The ability to distinguish these is useful for evaluating the efficiency of sex pheromone traps．