Re: Underwater mysteries

["John Hartog" hartogj]

Gianni,

Thank you for the additional clues.  From what you and Bernie have
written, what I recorded is likely an insect and not a frog.

I found a recent publication by The Xerces Society for Invertebrate
Conservation for my local area:

http://www.columbiaslough.org/PDFs/Bugs/2006_June_Handbook3b.pdf

It has some descriptions of the beetles in those waters.  The photo
closest to resembling what I think I saw is the riffle beetle
(Elmidae) on page18.

Perhaps I'll pass my recording along to the author and see what he
thinks. And, I must return soon to record and observe again: maybe
I'll find something more definitive.

John Hartog


--- In  Gianni Pavan <> wrote:
>
> the sounds seems to be stridulations made by some aquatic insect. I
> often recorded similar sounds from some species of Ditisicidae
> (Coleoptera). A specimen is of course required to make a correct
> identification.
>
> Gianni
>
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> Gianni Pavan
> Centro Interdisciplinare di Bioacustica e Ricerche Ambientali
> Universita' degli Studi di Pavia, Via Taramelli 24, 27100 PAVIA, ITALIA
> Phone     +39-0382-987874    Fax +39-02-700-32921
> Email      
> Web       http://www.unipv.it/cibra
>
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"Microphones are not ears,
Loudspeakers are not birds,
A listening room is not nature."
Klas Strandberg

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