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Creepy-Crawly  St. Mark's Fly

St. Mark's Fly - Photo  Copyright 2001 Gary Bradley
Photo: G. Bradley

UK Safari Tip:
A great way to see all the details on these insects and other small creatures is with a special magnifier box - click here

Latin name: Bibio marci

Size: The male, on the left, is about 12 mms long, and the female on the right is about 14 mms long.

Distribution: Found throughout the UK.

Months seen: These hairy little insects are named after St. Marks day, 25th April, when they appear with amazing regularity. They normally all disappear after just a fortnight.

Habitat: Hedgerows and woodland edges.

Food: Nectar.

Special features: When airborne, they fly in a sluggish manner above hedgerows and grass, with their long legs dangling down. They help with the pollination of fruit trees, while their larvae feed on leaf mould.

UK Safari Creepy-Crawlies Section

  2006 G. Bradley. All Rights Reserved