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Ilybius fenestratus
Ilybius fenestratus is a species of beetle found throughout Europe and Northern Asia. It was first described by Johan Christian Fabricius in 1781.
The scent gland of this species of beetle is natural source for the anabolic steroid boldenone (Δ1-testosterone).
From the article Ilybius fenestratus on Wikipedia (CC BY-SA), quoted section by section
What it does
A study conducted in Målsjøen found the life cycle of the species to be semivoltine, with adults emerging in midsummer. They hibernate over the winter, possibly in the water, the hibernation lasting until mid-June. Breeding takes place from mid- to late summer, the last adults dying in autumn. The larvae hatch in late summer and hibernate, in the water, until April to May, when they emerge from the water to pupate.
== References ==
Wikipedia: “Life cycle”
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Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
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Every page naming Ilybius fenestratus 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 547652.