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Promachus yesonicus
Promachus yesonicus, or shioya-abu (塩屋虻, シオヤアブ) in Japanese, is a species of robber flies. In Japanese, "shioya" means a salt merchant (someone who makes or deals in salt), and "abu" means a horse-fly. This insect is called "shioya-abu" because the males have a white tip to their tail that resembles salt.
From the article Promachus yesonicus on Wikipedia (CC BY-SA), quoted section by section
Description
Male Promachus yesonicus have a white cotton-like bud at the end of their tails, while females do not. Adults can reach 23–30 millimetres (0.9–1.2 in) in length.
Range & habitat
Promachus yesonicus is found throughout Japan from Hokkaido to Okinawa. They are visible from June to September.
Wikipedia: “Distribution”
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geo-referenced records in GBIF, from museums, herbaria and field observers.
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Every page naming Promachus yesonicus in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 361062.