Nectopsyche sp.

Mark Melton

Active Member
These caddisfly larvae and pupae are usually found in slow water around the roots of torrent sedge and ludwigia. They are most commonly found between February and May.

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20-30 mm in length

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Larva 10 mm. Case 20 mm.

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Larva 13 mm. Case 20 mm.

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Pupal case 17 mm.

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Larva 13 mm. Case 20 mm.

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Larva 13 mm.

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Larva 13 mm.
 

tkww

Member
Interesting that the case is so long compared to the larva. Is that because they get fatter and simply move up (and build out) the case?
 

Mark Melton

Active Member
Interesting that the case is so long compared to the larva. Is that because they get fatter and simply move up (and build out) the case?
It seems likely that they do that and the case doesn't break off at the anterior end because they use a lot of silk in the construction of the case and it's quite difficult to break or tear off pieces.
 

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