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Image of Thaumatomyia notata (Meigen 1830)

Image of Thaumatomyia notata (Meigen 1830)

Description:

"Thaumatomyia notata male. Note the eversible vesicles (""yellow balls"") on the abdomen. These are thought to be pheromone producing glands that may play a role in the aggregation behavior of this species. Els Poblets, Alicante, Spain."

Source Information

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cc-by-4.0
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Katja Schulz
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iNaturalist
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https://www.inaturalist.org/photos/6868366