Stromboceros delicatulus (Fallén, 1808)

Stromboceros delicatulus

The only species of this genus to be represented here. The long, slender insect is predominantly light green to pale yellow with a black head, black patches on the mesonotum and a distinct black patch covering the mesosternum. Colour fades to straw in death. The abdomen may also be marked with black in part.

Stromboceros delicatulus larvae feed on ferns in woodland.

Jump to information on the genus Stromboceros

Size: 5.5 to 7mm

Status: Widespread and common

Distribution: England, Scotland, Wales, Ireland

Flight period: May to September

Plant associations: Pteridium spp., Dryopteris spp., Onoclea spp., and Polypodium spp. (ferns)


Benson, R.B., 1952. Handbooks for the Identification of British Insects. Hymenoptera, Symphyta, Vol 6, Section 2(a-c), Royal Entomological Society, London

Liston A, Knight G, Sheppard D, Broad G, Livermore L (2014) Checklist of British and Irish Hymenoptera - Sawflies, ‘Symphyta’. Biodiversity Data Journal 2: e1168.