Egg-parasitoids wasps of Lestes sponsa and Lestes japonicus

The final renewal day of this page is September 14, 2003.


Lestes that it inhabits Kinki area are Lestes sponsa , Lestes temporalis and Lestes japonicus.
The inhabiting environment of Lestes sponsa and Lestes japonicus looks alike.
Some egg-parasitoids wasp parasitizes two species of Lestes sponsa and Lestes japonicus
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Figure1-1 :@1. Oviposition of Lestes sponsa  2.  The inhabiting environment of Lestes sponsa and Lestes japonicus

Figure1-2 :The egg-parasitoids wasp which parasitized Lestes sponsa and Lestes japonicus.

This egg-parasitoids wasp seems to be distributed widely. This egg-parasitoid parasitizes both species of Lestes sponsa and Lestes japonicus. The egg-parasitoids wasp of the figure parasitized the egg of Lestes japonicus.@This plant is Scirpus triqueter L. There is the egg of Lestes sponsa in this plant.  The length of this female is about 1.20 mm.  A white arrow in the figure shows an ovipositor.

Figure1-3: The male which emerged is waiting for the female which happens that it passes by.
A male rides on the female and copulates. Copulation continuous time is several seconds.

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Figure1-4: This egg-parasitoids wasp parasitized the egg of Lestes japonicus.

1.The larva just before going from the egg.  2.Lalva  3.Pupa     4.Pupa    

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Figure1-5:  1. @A male head is yellow. @2. @A female head is blackish.

Figure1-6: Fore wing is big. Rear wing is small. (This photograph expands into two times of other photographs.)

Figure1-7: 1. The larva of egg-parasitoids wasp grows up in the egg.  A larva breaks an egg after that, and goes to the outside of the egg. Then, it becomes a pupa in the suitable gap of the plant organization.  A plant is bitten, and a hole is made, and this egg-parasitoids wasp comes out. (a. A wound on the surface of the plant when Lestes sponsa laid eggs. b. The hole which an egg-parasitoids wasp made by itself )  2. Another egg- parasitoid which parasitized Lestes sponsa. @ The size of this egg-parasitoids wasp. : body length 0.80mm;antenna length 0.65mm. : The antenna of male is longer than female.