Species of false owlet moth
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Tethea ocularis, the figure of eighty, is a moth of the family Drepanidae. The species was first described by Carl Linnaeus in his 1767 12th edition of "Systema Naturae". It is found throughout Continental Europe and has a scattered distribution in England and Wales, although it is absent from Scotland and Ireland.
The wingspan is 35–45 mm; the dark brown forewings being marked with dark-centred white stigmata which do look rather like the number 80. The hindwings are grey. The species flies from May to July[#endnote_] and is attracted to light and sugar.
The grey and white larva feeds on poplar and aspen. The species overwinters as a pupa.