Sphaeroderma testaceum - Sphaeroderma testaceum
There are two very similar species of Sphaeroderma in Britain and both feed on Thistles. This is likely to be S. testaceum. It is a small (3.5 to 4 mm) broad oval species with light brown shiny elytra.
Found wherever the foodplants, various species of Thistle and occasionally Common Knapweed are abundant, including roadsides, wasteland, woodland etc.
May/June to September.
Pupation occurs in the spring and new generation adults are seen from May. Both larvae and adults feed on leaves.
Common and widespread in England and Wales, less so further north.
Fairly frequent in Leicestershire and Rutland. There were a total of 29 VC55 records for this species up to March 2015.
Leicestershire & Rutland Map
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