I found some kind of laong, slimy sack under a stone inside a cold brook in the mountains. At home, under the microscope I saw that really tiny nematoceran lavae were coming out from it - freshly emeged from eggs, I think.
pwalter attached the following image:
It is the larvae of a Chironomidae, Tanypodinae for sure, but I have no idea about the species or even genus. All Chironomidae lay their eggs in a long slimy sac, which they attach to a hard subtrate at one end. They can contain numerous eggs.
Some flies preserved in ethanol and then pinned often get the eyes sunken, how can this be avoided? Best answer: I usually keep alcohol-collected material in alcohol
Tried to attach an image to a forum post. jpg, 32kB, 72dpi, no blanks, ... File name is correctly displayed, but when I click "Preview Thread" it just vanishes. Help!