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Classification Order: Hymenoptera Family: Symphyta

Length About 7-8 mm.

Phenology First generation fly in May and June

Identification

This species is relatively easy to identify, with an orange thorax, abdomen and legs contrasted with black head and 'shoulder pads'. It also has an obvious black front edge to its wings. The abdomen is thick; pointed in female, rounded in male.

Similars

Life Cycle Larva are dark greeny-grey, or almost black (18-25 mm). The larva overwinters in the ground in a cocoon. It feeds on cruciferous plants where it can be a pes

Habitat Larva are dark greeny-grey, or almost black (18-25 mm). The larva overwinters in the ground in a cocoon. It feeds on cruciferous plants where it can be a pest

 

 

 

 

 

 

Image Geoff Foale (C) 2017