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MillcreekFebruary 17th, 2016, 4:04 pm
Healdsburg, CA

Posts: 356
These were collected during the spring and summer from Mill Creek, a tributary of Dry Creek and the Russian River. They were collected from areas with a moderate flow and a gravel and cobble base. There was little filamentous algae but good growths of diatoms.

The larvae and pupae are 6-7 mm. The cases are 8 mm.

The larvae were identified using Merritt, Cummins and Berg (2008). The pupae were identified to family using the above.
MartinlfFebruary 17th, 2016, 7:31 pm
Moderator
Palmyra PA

Posts: 3211
Great photos, as usual. Thanks!
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell
CrepuscularFebruary 18th, 2016, 8:53 am
Boiling Springs, PA

Posts: 923
Nice Matt. Interesting thing about some Apatania I seem to recall that in some places females greatly out number males and there is parthenogenesis.
PaulRobertsFebruary 22nd, 2016, 11:21 am
Colorado

Posts: 1776
Nice!

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