Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Upcoming Events

Discussion, insects and people from the 2018 BugGuide Gathering in Virginia, July 27-29

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


Genus Eumerus

Syrphid Fly (Eumerus sp.) - Eumerus - male Bee or fly?  - Eumerus Fly - Eumerus Syrphid Fly? - Eumerus Syrphid fly? - Eumerus is this Myolepta nigra - Eumerus Eumerus - Eumerus funeralis - male syrphid fly - Eumerus - female
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 Merodontini
Genus Eumerus
Explanation of Names
Eumerus Meigen 1822
3 spp. in our area (all adventive)(1)(2), >280 worldwide
Either blackish flies with silvery spots on the tergites or reddish flies with blackish thorax. Hind Femur is swollen. The head bears no facial projection and the mouth edge is only slightly projected.
most diverse in the Palaearctic; in NA, coast to coast(1)
Most are thermophilous and can be found in grasslands and at the borders of woods and bushes, often near the larval foodplants.
Life Cycle
larvae mine in bulbs (e.g. Allium) and are considered pests
Most species fly quickly near the surface, which makes them difficult to spot
Internet References
Works Cited
1.Eumerus narcissi Smith (Diptera, Syrphidae), presence in Europe confirmed, with a redescription of the species
Speight M.C.D., Hauser M., Withers P. 2013. Dipterists Digest 20: 17-32.
2.Key to the genera of nearctic Syrphidae
Miranda G.F.G, Young A.D., Locke M.M., Marshall S.A., Skevington J.H., Thompson F.C. 2013. Can. J. Arthropod Identification 23: 1-351.