Family Tenthredinidae (Common sawflies) » Athalia rosae (Linnaeus, 1758)
Length: 6-8 mm. This is quite a small but very distinctive sawfly with orange body and legs, a black head, black markings on the thorax and along one side of the forewings. This is the largest of the Athalia species. The larva feeds on cruciferous plants where it can be a pest. Adults are seen April to October. Common and widespread throughout Britain, but scarcer further north.
Found in back garden, South Staffordshire. June 2019 & May 2021. Photos © Peter Hillman. Species identification confirmed and recorded by an expert from iRecord.