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For Insects, Spiders & Their Kin
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Calendar
BugGuide Gathering
Smoky Mountains
University of Tennessee Biological Field Station
August 8-10, 2008
Details...
 
Photos from the last gathering (Minnesota 2007)

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Species Meromacrus acutus

Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon (Aschiza)
Family Syrphidae (Syrphid Flies)
Subfamily Eristalinae
Tribe Eristalini
Genus Meromacrus
Species acutus (Meromacrus acutus)
Synonyms and other taxonomic changes
Meromacrus acuta (spelling/grammatical gender)
Size
18 mm
Identification
Large, bee/wasp mimic. Body dark, head, thorax, and abdomen with narrow yellow margins.

If you check the wing venation you will see that Meromacrus has a deep dip in the vein R4+5, while Milesia has just a slight dip there. Compare Meromacrus acutas on the left, with Milesia virginiensis on the right:
Range
Southeastern United States
Habitat
Fields with flowers, etc.
Season
May-September (North Carolina). June-August (Oklahoma). Perhaps absent in mid-summer?
Food
Takes nectar at flowers.
Print References
Brimley, p. 352, lists M. acutus for North Carolina (2).
Castner, p. 147, fig. 545--has a photograph of what is likely M. acutus (3).
Taber and Fleenor, p. 182--color photograph (4)
Syrphidae of Oklahoma (5), lists M. acutus.
Internet References
North Carolina State University Entomology Collection lists M. acuta/us for that state, with 25 pinned.