Melangyna

Verrall, 1901

Halfbands

Species Guides

6

Melangyna is a of hoverflies (Syrphidae) distributed across the Holarctic region, with subgenera in the Nearctic, Palearctic, and Australasian regions. are frequent flower visitors, while larvae are predatory on aphids. The genus exhibits in and , with males typically larger than females and showing distinct foraging and exploration patterns.

Melangyna fisherii by (c) kevinhemeon, some rights reserved (CC BY). Used under a CC-BY license.Melangyna lasiophthalma (female) by Sandy Rae. Used under a CC BY 3.0 license.Melangyna lasiophthalma - Flickr - S. Rae by S. Rae from Scotland, UK. Used under a CC BY 2.0 license.

Pronunciation

How to pronounce Melangyna: //mɛˈlændʒɪnə//

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Images

Habitat

Coniferous woodlands; urban and semi-urban environments with flowering vegetation.

Distribution

Holarctic region: Northern and Western Europe (Denmark, Norway, Sweden), North America (Vermont, USA; British Columbia, Canada), Northern England and Scotland; Australasian region (Australia, New Zealand) for subgenus Austrosyrphus.

Seasonality

active from May onwards, with peak abundance between mid-June and mid-August.

Diet

feed on nectar and pollen; frequent visitors to umbellifer flowers including Heracleum and Angelica. Larvae are oligophagous of aphids.

Behavior

Males form small swarming . Sex-dependent differences in exploration and foraging: males and females exhibit distinct patterns in movement and resource acquisition, leading to differential use of floral resources.

Ecological Role

Larvae function as in . contribute to pollination as flower visitors, with sex-specific floral resource use patterns that may affect plant reproductive outcomes.

Human Relevance

Potential biocontrol agents for pest management. Flower visitation supports pollination services in natural and urban .

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Sources and further reading