Yucca Oriole singing from palm trees in a canyon

Yucca Oriole in Palms

Underground recording of Pachnoda marginata peregrina (aka sun beetle, aka Congo rose chafer, aka taxicab beetle) larvae in captivity at the London Zoo.

Larvae of many Coleoptera (beetle) families possess stridulatory organs. Stridulations are actively produced sounds for communication created by rubbing together certain body parts*

It is still (March 2025) unclear why beetle larvae produce these sounds, though communication (attracting mates or warning other insects) is the prime theory.

Gear
Aquarian Audio H2A hydrophones, Sound Devices 744T recorder

Larvae pic by Biotropic (on Flickr.com) CC 2.0

*Görres, CM., Chesmore, D. Active sound production of scarab beetle larvae opens up new possibilities for species-specific pest monitoring in soils. Sci Rep 9, 10115 (2019). https://doi.org/10.1038/s41598-019-46121-y

Beetle Larvae Song

Buy Redwoods Winds

AMB90 Redwoods: Wind

[00:00] Part I; [02:55] Part II, "Hammerklavier"; [13:24] Part III

Radio bardo ₂₀₁₆ ᶰʸᶜ

NTS 25th August 2025

Stereo hydrophone recording inside a glacier crevasse with exiting air bubbles. Recorded on the Morteratsch Glacier, July 19, 2025.

Morteratsch Glacier, July 2025

sumor 2025 | spiral movement | lea oroz w/ akira

Some incidental background information about the weather event recorded in this recording: https://www.weatherzone.com.au/news/rare-tornado-warning-in-adelaide-as-storms-powerful-winds-slam-sa/1890841.

2025.08.29 A Stormy Night and Dawn. Late Winter.

Unidentified stridulations inside a rotten tree stump, inspired by the adventures in soil ecoacoustics of my friend Les Goodyear.

The sound could be produced by 
- ants (one ant?), going by this recently released film by Jamie House: https://youtu.be/f9FgbH3zBfM?si=mljaAN8CZtxSwZJi&t=141 - but more information is needed. 
- or by beetles, going by this video https://www.youtube.com/watch?v=_ByXirczAFs kindly shared by Mike Sims.

Any leads please let me know!

Species: no ID (yet!)
Location: Spernal Plantation, Warwickshire, UK
Date and time: 16 August 2025 at 14:49
Habitat: Woodland
Gear: Zoom F3, The Les Spike on JrF contact microphone

Sundown Wild Forest 5:55am (pt. 2)

mikesim

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