Unknown larva

Olympusman · Post by **Olympusman** » Fri Jun 06, 2014 9:14 am

Unknown aquatic insect larva. Approx. 12mm long. Moves slowly and grazes on algae.

Olympusman · Post by **Olympusman** » Fri Jun 06, 2014 4:37 pm

Here's a detail of another one a little farther along in development. This one was trying to climb out of the sample jar. Six legs with very pointy hooks, head and jaws more developed.

Ichthyophthirius · Post by **Ichthyophthirius** » Sat Jun 07, 2014 3:34 am

Hi Michael, The first one is a Soldier Fly larva (Stratiomyidae). http://www.freshwater-science.org/educa ... cro110-jpg

The second one is different. Without seeing more of the larva I would suspect a beetle larva, in particular a Diving Beetle (Dytiscidae).

Ichthy

Olympusman · Post by **Olympusman** » Mon Jun 09, 2014 7:20 am

The owner of the pond, who is a fisherman, suggested Helgrimite as a possibility.

Charles Krebs · Post by **Charles Krebs** » Mon Jun 09, 2014 1:35 pm

For the second one check out hydrophilid beetle larvae.

Not saying this is the species... but this is a pretty typical appearance:

http://www.zin.ru/animalia/coleoptera/eng/rtrtr140.htm

Olympusman · Post by **Olympusman** » Mon Jun 09, 2014 3:12 pm

Thanks, loads, Charlie. Yes, indeed, it is a diving beetle larva.

http://bugguide.net/node/view/281036/bgimage

carlos.uruguay · Post by **carlos.uruguay** » Mon Jun 09, 2014 7:18 pm

Excellent images!

Unknown larva

Unknown larva

Unknown Larva image added

Unknown larva

Unknown larva