In the UK, the moth flies from June to September.[5] It is nocturnal and attracted to light.[2][5]
The larvae feed on various grasses, such as Poa and Deschampsia species.
Description
Handbook of British Lepidoptera
The following description of Agriphila tristella was published in Edward Meyrick's 1895 A Handbook of British Lepidoptera:[6]
The wingspan is 22–30 mm. The face has a short cone. Forewings are pale or deep yellow-ochreous, often mixed and sometimes wholly suffused with dark brown; median vein and lb pale or whitish; second line indistinctly brownish, acutely angulated, sometimes obsolete; sometimes some indistinct blackish terminal dots; cilia shining whitish-ochreous to fuscous. Hindwings are grey. The larva is pale ochreous or brownish; spots large, blackish-brown; head and plate of 2 black
^Meyrick, E., 1895 A Handbook of British Lepidoptera MacMillan, London pdf This article incorporates text from this source, which is in the public domain. Keys and description