Melangyna umbellatarum

Melangyna umbellatarum is a Holarctic species of hoverfly.

Description

For terms, see: Morphology of Diptera.
Wing length:. This species closely resembles Melangyna ericarum, but the thorax has pale hairs on the disc. The jowls have only pale hairs below the eyes, whereas M. ericarum has some black hairs. Tergite 2 has moderately large, yellow side-spots which extend close to or over the side-margins of the tergite. The legs have distinct clear orange markings, and the four anterior femora have few or none of the posterior black bristles present in M. ericarum. For full characters and references, see Bartsch et al. and Bei-Bienko, G.Y. & Steyskal, G.C. The male terminalia are figured by Hippa.

Distribution

Palearctic: Fennoscandia south to Iberia, Ireland east through North Europe, Central Europe and South Europe then east into European Russia and Siberia to Kamchatka. Nearctic: Alaska to Arizona.

Biology

Habitat: streams with Salix, Salix carr, beside streams and rivers fringed by Salix. Flowers visited include white umbellifers, Foeniculum, Euphorbia,
Filipendula ulmaria, Sorbus. The flight period is May to September.Larvae predate aphids.