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Genus Spilomyia

Spilomyia longicornis? - Spilomyia - female Hymenoptera Mimic - Spilomyia alcimus Spilomyia longicornis? - Spilomyia longicornis Spilomyia sayi Wasp-hornet Mimic Syrphid with Cosmic Eyes - Spilomyia kahli Spilomyia Spilomyia - Spilomyia longicornis Spilomyia fusca
Classification
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 Milesiina
Genus Spilomyia
Explanation of Names
Spilomyia Meigen 1803
Greek spilos (σπιλος) 'spot, fleck' + myia (μυια) 'fly'
Numbers
11 spp. in our area, 17 in the New World(1)(2), >100 in Eurasia(3)
Size
12-17 mm
Identification
good wasp mimics: pattern of pigment on eyes hides "fly eyes"; V-mark on thorax, short antennae
keys to spp. in(1)(4)
Range
Widespread in the New World & Eurasia(3); in our area, widespread but poorly represented in se. US: 4 spp. are eastern widespread, 4 western widespread, and 3 restricted to AZ-TX-OK(1)
Habitat
Larvae in water-filled tree holes
Season
Summer to fall
Remarks
mimics of social wasps, have habit of resting on the four posterior legs and waving front legs about in almost the same way that vespids move their antennae(5)
Internet References
Works Cited
1.Spilomyia flower flies of the New World (Diptera: Syrphidae)
Thompson F.C. 1996. Mem. Ent. Soc. Wash. 18: 261-272.
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. Canadian Journal of Arthropod Identification 23: 1-351.
3.Thompson F.C., Pape T., Evenhuis N.L. (2013) Systema Dipterorum, Version 1.5
4.Synopsis of the North American species of Spilomyia (Syrphidae, Diptera)
Curran C.H. 1951. American Museum Novitates 1492, 11 pp.
5. SYRPHIDAE OF OKLAHOMA (DIPTERA)
6.Syrphidae of Ontario