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Species Chalcosyrphus nemorum

mating syrphid flies - Chalcosyrphus nemorum - male - female Unknown larva 1 - Chalcosyrphus nemorum fly - Chalcosyrphus nemorum unknown syrphid - Chalcosyrphus nemorum - female Tropidia - Chalcosyrphus nemorum dark syrphid fly - Chalcosyrphus nemorum - male Unknown fly #1 - Chalcosyrphus nemorum Syrphid Fly - Chalcosyrphus nemorum - male
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Aschiza")
Family Syrphidae (Syrphid Flies)
Subfamily Eristalinae
Tribe Milesiini
Subtribe Xylotina
Genus Chalcosyrphus
No Taxon (subgenus Xylotomima)
Species nemorum (Chalcosyrphus nemorum)
Other Common Names
Dusky-banded Leafwalker(1)
Explanation of Names
Chalcosyrphus nemorum (Fabricius 1805)
very common holarctic species
A moist forest and wetland species often associated with alder and willow. Adults found on foliage overhanging water, trunks of fallen trees beside water, and on bare, damp mud or sand at the water's edge(1)
Larvae are under water of waterlogged deciduous trees and stumps(1)
Life Cycle

Larvae overwinter and have a approx 10 days pupal stage in the spring before emerging(1)
Internet References
Works Cited
1.Field Guide to the Flower Flies of Northeastern North America
Jeffrey H. Skevington and Michelle M. Locke, Andrew D. Young, Kevin Moran, William J. Crins and Stephen A. Marshall. 2019. Princeton University Press.
2.Hover Fly Survey of LA County