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Photo#364539
New nest - Cladius difformis

New nest - Cladius difformis
Alameda County, California, USA
January 14, 2010
January 14.

Late evening, January 12, the larva abandoned the half-finished nest shown in the preceding photo, perhaps because I had disturbed it. The nest was on the uppermost leaf of the food-plant cutting and was so near the top of the jar that I thought the larva might attach the leaf to the jar lid. To gain more clearance, I pruned off the top half of the cutting and put it, with leaf, nest, and larva, in another small water bottle. (The lower half of the cutting, with the smaller larva on it, went to another jar.) By the next morning, the larva had settled into a new web nest between layers of paper at the bottom of the jar. This is the new nest.

The silk in both nests has an orange tinge. Perhaps the larva had eaten some of the bright orange rust on the rose leaves.

Images of this individual: tag all
Sawfly larvae on rose - Cladius difformis Sawfly larva - Cladius difformis Sawfly larva - Cladius difformis Sawfly larva - Cladius difformis Sawfly larva - Cladius difformis Sawfly larva - Cladius difformis New nest - Cladius difformis Adult - Cladius difformis - female Adult - Cladius difformis - female

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