#aquatic beetle

[aquatic-insects-enthousiast]

NOTERIDAE MOMENT!!! I’ve always felt they look like if an acorn was a beetle… so tiny!!! So swimmy!! The burrowing water beetle! This one seems most likely to be Hydrocanthus, atripennis, which is a common species in Louisiana. I’ve always been hugely fond of these little guys… absurdly small beetles. So smooth.

I found this guy in a natural river in a conservation area on the shallow shoreline just swimming in little circles up and down the current, burrowing in the sand. If you have these around I HIGHLY recommend sitting and watching them swim in the shoreline. As always, I encourage corrections on my identification, if you know something I don’t please tell us!!

[tarantulacollective]

Watch "PREDATORY Aquatic Diving Beetle Care & Info" on YouTube

[rattyexplores]

These chiton-looking aquatic insects are actually beetles. This is the largest one I’ve ever found, and from my knowledge, they don’t get any bigger than this.

✤ Psephenidae - (Water-penny)

[drhoz]

#1341 - Fam. Hydrophilidae - Water Scavenger Beetle

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A tiny beetle at the Alison Baird Reserve, industriously exploring the paths at the northern end, when the water table started clearing the surface and half the reserve was under an inch or so of water.

Despite the common name, adults may be carnivorous or herbivorous, as well as scavengers, and the larvae are almost all predators. As you can see in the second photo, these beetle use a air bubble trapped along their belly to breath while they’re underwater.

Some are pests on fish farms. Others are predators of mosquito larvae.

[drhoz]

[drhoz]

Hydrocyphon deflexicollis

[drhoz]

[drhoz]

"Calcrete aquifers in arid inland Australia have recently been found to contain the world's most diverse assemblage of subterranean diving beetles (Coleoptera: Dytiscidae). In this study we test whether the adaptive shift hypothesis (ASH) or the climatic relict hypothesis (CRH) is the most likely mode of evolution for the Australian subterranean diving beetles"