The head, thorax and legs are dark brown to black and the abdomen and wings are whitish.

[1] The type specimen is a female that was collected from Tapotupotu Bay, near Cape Reinga, by J. G. Myers, a young entomologist from Wellington, in 1923.

He collected specimens, all of which were female, and sent them to André Léon Tonnoir, an entomologist at the Cawthron Institute in Nelson who specialised in Diptera, and who then published a description of the species, naming it Acanthoconops myersi.

Lionel Jack Dumbleton collected one male and many female specimens at Tom Bowling Bay in 1967.

[3] In 2019, 11-year-old entomologist Olly Hills identified L. myersi as the species known as the 'Mount mauler', which had been inflicting painful skin irritations to people[4] above the high-tide line on beaches in the Mount Maunganui area for up to 50 years.