Like other Hydrotaea species, this is predominently black or dark brown. Males have an indented front femor which is typical of the genus.

Other Hydrotaea species.

Males:

• front femora modified with short peg-like spine
• eyes hairy, length > diameter of the anterior ocellus
• mid femora without flattened dorsal setae at apex
• hind femora without ventral setae
• hind tibia straight
• hind femora with rows of 8-10 av and pv setae
• eyes separated at narrowest point by > 2x anterior ocellus

Uncommon but widespread in England and Wales, few records in Scotland.

Rare or under-recorded.