Caliroa varipes
A black insect. The third antennal segment clearly shorter than the fourth and fifth combined. Hind tibia yellow-brown basally. Hind tarsus may be weakly yellow-brown basally. Middle tibia marked with yellow-brown on the external face in males and basally in females.
Larvae are mucus covered " slugworms" that feed on the leaves of various trees. They pupate in the ground.
Size: 4 - 6mm
Status: Local
Distribution: England, Wales, Ireland
Flight period: Bivoltine, May to June and August
Plant associations: Populus spp., Salix spp., Betula spp., and Quercus spp. (poplars, willows, birches and oaks.)
The National Biodiversity Network records are shown on the map below. (See terms and conditions)
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References:
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. https://doi.org/10.3897/BDJ.2.e1168