Photo 107699744, (c) Katja Schulz, some rights reserved (CC BY), uploaded by Katja Schulz

Attribution © Katja Schulz
some rights reserved
Uploaded by treegrow treegrow
Source iNaturalist
Associated observations

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What

Pearly Sedgesitter (Platycheirus hyperboreus)

Observer

treegrow

Date

June 6, 2020 04:05 PM EDT

Description

Anterior oral margin smoothly rounded when viewed laterally. At least some tergites with pale spots. All femora yellow at base. Yellow spots of tergites 3 and 4 rectangular, reaching lateral margins. Tergite 5 with pale spots. Abdomen robust, oval shaped. Spots of tergites 2–4 usually broader than long. Pale spots of tergite 2 reduced—no more than a quarter total length of tergite, rarely reaching the lateral tergite margin, usually broader than long, and triangular/circular in shape. Tergite 6 dark, with at most obscurely orange lateral margins. Pale spots of tergites usually overlaid with faint to strong silver pruniosity. Pale spots on tergites 3–5 usually broader than long and no more than four-sevenths the total length of tergite. Hind femora and tibia usually with a strong dark ring at midlength, sometimes leaving only base and apex of femora and tibia pale. Tergites 3–5 with strong silvery pruniosity overlaying pale spots; base of cell c, bm bare. Young et al. 2016

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Copyright

Katja Schulz