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One of the larger and more attractively marked Ichneumonidae, approximately 15 mm in length, excluding antennae. A parasitic wasp, it does not possess a sting and is therefore harmless to humans. The strong yellow and black markings most likely make it a Batesian mimic; a form of protective mimicry in which an unprotected species closely resembles an unpalatable or harmful species and therefore is similarly avoided by predators
On roadside verges, hedgerows, woodland rides and clearings, especially on any dense undergrowth such as bramble patches.
Peaking around June
Very often found in summer on flowers feeding on pollen, especially umbellifers such as Hogweed.
Widespread and fairly common in lowland Britain
Fairly common in Leicestershire and Rutland.
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