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> > Tinodes sp.

Millcreek has attached these 6 pictures. The message is below.
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Tinodes larva. 11 mm.
Tinodes larva. 11 mm.
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Top of pupal case. 12 mm.
Top of pupal case. 12 mm.
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Bottom of pupal case. 12 mm.
Bottom of pupal case. 12 mm.
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Immature and mature pupae. 10 mm.
Immature and mature pupae. 10 mm.
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Ventral view of pupa. 10 mm.
Ventral view of pupa. 10 mm.
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Dorsal view of pupa. 10mm.
Dorsal view of pupa. 10mm.
MillcreekFebruary 24th, 2015, 10:48 am
Healdsburg, CA

Posts: 328
These are relatively common in Mill Creek, a tributary of the Russian River.
They're found in pools on the side and top of rocks. They use a net to capture diatoms and algae. The net sits flat on the rock usually over a small declivity.

When ready to pupate, the larva leaves the net and finds a large rock, spins a covering of silk and sand and begins pupation. Pupae are usually found on the top or side of a rock.
"If we knew what it was we were doing, it would not be called research, would it?"
-Albert Einstein
CrenoFebruary 24th, 2015, 1:30 pm
Grants Pass, OR

Posts: 296
Nice pics - especially pupal stuff - can you get a close up of the head showing the structure (bump) between the antennae? Does that hang over the front of the head like a ball-cap brim?
MillcreekFebruary 24th, 2015, 2:45 pm
Healdsburg, CA

Posts: 328
Kind of pressed for time right now. Will try to get pics of the head later.
Did take a look under the microscope and it does to appear hang over the front of the head.
"If we knew what it was we were doing, it would not be called research, would it?"
-Albert Einstein
PaulRobertsFebruary 24th, 2015, 9:31 pm
Colorado

Posts: 1776
Nice. Thanks for these.

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