SWARMS of bloodsucking Blandford flies have invaded Oxfordshire as the warm weather continues.

Oxford Health NHS Foundation Trust reported that its Minor Injury Units have seen a significant increase in patients with bites from the nasty insects.

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The black fly, 2 to 3mm in size, which gives a particularly painful bite.It can lead to swelling, blistering, joint pain and sometimes a high temperature.

It normally bites ankles and legs, flies low to the ground and is most common during May and June.

Call 111 If you feel unwell after a bite.