Description: Wingspan 17-22 mm. Forewings similar in shape and markings to the Wormwood Pug E. absinthiata, but the wings are shorter and more rounded. The colour is normally reddish brown and the white dot at the end of the sub-marginal line is more evident. Hindwings similar in colour to the forewings. End of April to late August. Skinner gives May and June as the normal flight period in Britain.

World Distribution: Eurasiatic; widespread across central Europe to eastern Asia.

Irish Distribution: Widely distributed but not commonly encountered. The majority of recent records are from small gardens and wooded estates where the foodplants are found. It is likely to be overlooked in many areas and therefore its present distribution is probably not a true indication of its current status in N.Ireland.

Ecology: This species is associated mainly with gardens and allotments where its foodplants are most commonly found. The larvae feed wild and cultivated currants Ribes spp. It overwinters as a pupa.

Key Identification Features:

• Shorter forewings
• Conspicuous white spot at the end of subterminal line
• Black costal blotches and small discal spot.

Distribution Map from NBN: Eupithecia assimilata at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Eupithecia assimilata at iNaturalist World Species Observations database.