Platycheirus naso
species of insect

Platycheirus naso, the tufted sedgesitter, is a rare species of syrphid fly. Hoverflies get their names from the ability to remain nearly motionless while in flight The adults are also known as flower flies for they are commonly around flowers where they get energy-giving nectar and protein rich pollen. Range: Norway, Sweden, Finland, Siberia, Alaska south through mountain chains to Colorado. Platycheirus holarcticus Vockeroth is recognized as a junior synonym of Syrphus naso Walker. From Andrew Young 2012 Master's thesis.
Description
Spheight's Key to Genera of European Syrphidae with Morphological terms.
Glossary of morphological terminology of adult Syrphidae, Steenis.
"Body length: 7.1.10.1 mm.
Diagnosis of MALE: Very similar to amplus, differing as follows: Face produced somewhat farther forward, with anterior oral margin usually reaching level of tubercle. Gena slightly wider than basoflagellomere when viewed ventrolaterally.
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Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Jun 1, 2026. The linked authority identifier is Q14328004. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2012.
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This entry incorporates text from “Platycheirus naso” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.