Platycheirus latitarsis

Platycheirus latitarsis
Platycheirus latitarsis male from Andrew Young
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Diptera
Family:	Syrphidae
Genus:	Platycheirus
Species:	P. latitarsis
Binomial name
Platycheirus latitarsis (Vockeroth, 1986) [1]
Platycheirus latitarsis map 2017

Platycheirus latitarsis, the flathand sedgesitter, is a species of fly in the family Syrphidae. It is a rare species found in Western and central Canada. (see map) ^[2]

Platycheirus latitarsis front leg
from Andrew Young

Platycheirus latitarsis male
from Andrew Young

Description

For terminology see Speight key to genera and glossary or Glossary of morphological terminology
"Very similar to P. amplus, differing as follows: First fore tarsomere strongly flattened, slightly less than twice as long as wide, without a dorsal keel. Mid tibia slightly swollen subbasally and apically, with an anteroventral tuft of short, dark or pale, slightly wavy pile up to 1.5 times as long as tibial diameter on subbasal swelling. Hind tibia with anterior setae somewhat denser. First hind tarsomere barely swollen basally, tapering uniformly to narrow apex. Legs otherwise unmodified. Thorax sparsely yellow or grey pollinose. Scutellar pile approximately as long as arista, other thoracic pile no more than half as long. Pile of scutum and scutellum mixed dark-yellow and black." ^{[3] [4]}

• General Anatomy click to enlarge
• 
  Legs
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  Head
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  Wing
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  Body

References

1. Vockeroth, J. R. (1990). "Revision of the Nearctic species of Platycheirus (Diptera, Syrphidae)". Canadian Entomologist. 122 (4): 659–766. doi:10.4039/Ent122659-7.
2. Vockeroth, J. R. (1992). The Flower Flies of the Subfamily Syrphinae of Canada, Alaska, and Greenland (Diptera: Syrphidae). Part 18. The Insects and Arachnids of Canada (PDF). Ottawa, Ontario: Canadian Government Pub Centre. pp. 1–456.
3. Skevington, Jeffrey H.; Locke, Michelle M.; Young, Andrew D.; Moran, Kevin; et al. (2019). Field Guide to the Flower Flies of Northeastern North America. Princeton Field Guides. Princeton University Press. ISBN   9780691189406.
4. Young, Andrew D.; Marshall, Stephen A.; Skevington, Jeffrey H. (17 February 2016). "Revision of Platycheirus Lepeletier and Serville (Diptera: Syrphidae) in the Nearctic north of Mexico". Zootaxa. 4082 (1): 34. doi:10.11646/zootaxa.4082.1.1. ISSN   1175-5334. PMID   27394216.  This article incorporates textfrom this source, which is available under the CC BY 3.0 license.