7 to 8 mm. Six pale lines on the pronotum (H. sahlbergi has 7 to 9) and the pattern of light lines on a dark background extending to the posterior apex of the corium.
Hesperocorixa sahlbergi: 7 to 9mm, the pattern of light lines on a dark background fades to a pale patch near the apex of the corium.
Please measure length and record dorsal patterning as described.
Good quality photographs of dorsal and ventral surfaces required.
Occurs in a range of still-water habitats, usually with emergent vegetation and a fairly high concentration of organic matter in solution.
Overwinters as an adult.
Widely distributed in Britain.
Under recorded in Leicestershire and Rutland due to identification difficulty.
Leicestershire & Rutland Map
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