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Animalia >Arthropoda >Insecta >Hymenoptera >Eupelmidae >Pseudanastatus >

This wasp Pseudanastatus albitarsis parasitizes eggs of large moths such as Antheraea yamamai and Malacosoma neustria. Their larvae spend the winter in host eggs and emerge as adults about the time when host eggs hatch. Males emerge first and wait for females to mate. A male approaches a female and touches the long antennae of the female with its short antennae. After repeating the sequence several times, a female ready to copulate sends a signal to the male by raising its abdomen. Because the 6th body segment containing the vulva is located in the middle of the abdomen in this species, the male and female copulate while the male is hanging from the tail region of the female. After copulation, the male mounts the female. The meaning of the post-copulatory mounting is not clear.

(Data No.momo050122pa01b)

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