[Odonata-l] mystery egg masses

[Kathy &/or Dave Biggs]

Here's a pix of /Epitheca canis /egg mass we watched being laid.
http://southwestdragonflies.net/caphotos/basketaileggstring.jpg
Kathy Biggs

-- 
California Dragonflies	       http://www.sonic.net/dragonfly
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Kathy and Dave Biggs	       bigsnest at sonic.net      707-823-2911
308 Bloomfield Rd.             Sebastopol, CA  95472 
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Dennis Paulson wrote:

> Hello, all.
>
> Has anyone out there photographed or seen clearly the egg strings of 
> any species of /Epitheca/ (including /Epicordulia/ and 
> /Tetragoneuria/)? I have often seen the females ovipositing, but in 
> water too deep for me to go look at the eggs. Judy Semroc, a colleague 
> in Ohio, has sent me photos of linear masses of eggs that look much 
> like odonate eggs looped around floating plant stems. But the masses 
> are up to a couple of inches wide and two feet long, with thousands of 
> eggs in them. The eggs are elongate and don't look like any amphibian 
> eggs I have ever seen (most North American genera). I know female 
> /Epitheca/ sometimes gather at single localities and lay many eggs, 
> but this seems a bit much. If you cut across one of these "strings," 
> you would hit about 5-10 eggs. I have no idea what else they could be, 
> and if anyone else knows, I would much appreciate the information. I 
> can send the photos to anyone with special interest in this.
>
> Thanks for any help with this mystery.
> -----
> Dennis Paulson
> 1724 NE 98 St.
> Seattle, WA 98115
> 206-528-1382
> dennispaulson at comcast.net <mailto:dennispaulson at comcast.net>
>
>
>
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