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Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington

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Unidentified Immature Stages

Syrphid Fly Larva Larva Syrphidae 9-01-09 01 Slug or caterpillar limacodid vs lycaenid on rose leaf Who is this beauty? Larvae on rose bush odd larva, Coccinelidae ??
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Aschiza")
Family Syrphidae (Syrphid Flies)
Subfamily Syrphinae
No Taxon Unidentified Immature Stages
Identification
Larvae have pairs of locomotory organs on the first six abdominal segments. These are not true prolegs because they lack musculature and crochets.
Remarks
All syrphid aphid eaters are in subfamily Syrphinae. There is some advice on rearing them here.
Most syrphid fly maggots feed on aphids, thrips, leafhoppers and and other soft-bodied prey like small caterpillars. They move along plant surfaces, lift their heads to grope for prey, seize and suck them dry and then discard the exoskeleton.

A few larvae sorted out by similar appearance.
Probably many images in this section belong to the tribe Syrphini.

Many aphid eaters hide during the day and feed at night. Look for them at dawn or dusk.

To help with navigation of unidentified larvae:
Internet References
U. Cal. Flower Flies (Syrphidae) and Other Biological Control Agents for Aphids in Vegetable Crops
U. Cal. Bugg, R. L.
Cornell U. Biological Control.
Dipterist Forum. Colour Guide to Hoverfly Larvae (Diptera, Syrphidae) in Britain and Europe. Graham E Rotheray.