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Chalybion japonicum
(Gribodo, 1882)
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Whole body metallic blue. It builds mud partitions in the nest and hunts spiders of Theridiidae, Tetragnathidae, etc. Cocoons are blackish brown. Conspicuous white plugs at the nest entrance are made from scrapings of bird droppings or plastered walls.
Host-parasite relationship
Parasitized by
Praestochrysis lusca,
Macrosiagon bifasciata, etc.
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Sphecidae
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Chalybion
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Body length :
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female
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15-20 mm
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male
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15-20 mm
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Distribution in Japan :
Honshu, Izu Islands, Ogasawara Islands, Iwojima Island, Sado Island, Shikoku, Kyushu, Tsushima Island, Nansei Islands
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Dorsal view of female
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Lateral view of female
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Frontal view of female
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Dorsal view of male
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Lateral view of male
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Frontal view of male
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