I liked Pete’s explanation of spiderlings. Maybe ephemeral, but not Ephemeroptera.
Geoffrey – suggest you send a couple of your images to Tim the Yowie Man at the Canberra Times ;
canberratimes.com.au/profile/853/tim-the-yowie-man), as he is interested in Lake George ephemera. You may reach a wider audience than our chatline.
Steve
From: Canberrabirds <>
On Behalf Of Peter Cranston via Canberrabirds
Sent: Monday, 3 March 2025 11:52 AM
To: Geoffrey Dabb <>
Cc: Canberrabirds <>
Subject: Re: [Canberrabirds] FW: Seeking advice
It remains possible that the dew was condensing onto spiderlings, drifting at that time.
On Mon, 3 Mar 2025 at 11:45, Geoffrey Dabb via Canberrabirds <> wrote:
Aha. It looks as if ephemeropterists can lay down their nets. Peter Cranston has mentioned the possibility of a heavy dew. When I was approaching Bungendore I needed to use screenwipers
despite apparently clear weather. It seems I was photographing falling dewdrops.
From: Canberrabirds <>
On Behalf Of Geoffrey Dabb via Canberrabirds
Sent: Monday, 3 March 2025 10:32 AM
To: Canberrabirds <>
Subject: [Canberrabirds] Seeking advice
I need an entomologist. At least that’s what I think I need. Lake George again, early morning. My early snaps captured zillions of tiny pale spots along with birds (example
below, might need enlargement)). I must have got only those in the shallow focal field. I thought ephemeroptera (mayflies). A closer snap of ducks (3 species) shows the spots as rosette shapes (attachment). Extreme enlargement shows rosettes of a strangely
baroque pattern (bottom). I think these might be captures of light striking the heads of the insects. Before I go into this further I would like confirmation I am not wildly astray in thinking mayflies. Perhaps a different insect?
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