Wormwood pug

The wormwood pug (Eupithecia absinthiata) is a moth of the family Geometridae. The species was first described by Carl Alexander Clerck in 1759. It is a common species across the Palearctic region as well as North America.

Wormwood pug
Form goossensiata
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Family:	Geometridae
Genus:	Eupithecia
Species:	E. absinthiata
Binomial name
Eupithecia absinthiata (Clerck, 1759)[1]
Synonyms
Phalaena absinthiata Clerck, 1759 Eupithecia callunae Speyer, 1867 Eupithecia coagulata Guenée, 1857 Phalaena elongata Haworth, 1809 Eupithecia elongata Eupithecia geminata Packard, 1873 Eupithecia goossensiata Mabille, 1869 Eupithecia knautiata Gregson, 1874 Eupithecia meritata Pearsall, 1908 Geometra minutata Denis & Schiffermüller, 1775 Eupithecia minutata Eupithecia notata Stephens, 1831 Eupithecia packardata Taylor, 1907 Eupithecia catharinae Vojnits, 1969

The wingspan is 21–23 mm and the forewings are warm brown with two black spots along the costa with a black discal spot completing a distinctive triangle. There is a pale narrow line near the fringe with a distinct whitish spot near the tornus, although this is not as prominent as in the rather similar currant pug. The hindwings are greyish brown.ab. obscura Dietze (Kassimov, Central Russia) is much darker, the forewing described as sepia-coloured.^[2][3][4]

Adult larvae are smooth and elongated. They adapt to the basic colour of the respective food plant and are accordingly greenish, cream-colored or brownish colored and usually show a reddish-brown diamond-like pattern on the back. Sometimes light green, almost unmarked specimens also appear. The yellow-brown pupa is provided with greenish wing sheaths. At the cremaster there are eight hook bristles, the middle pair of which is strongly formed.

Eupithecia absinthiata requires examination of a genital preparation for certain identification.

The species flies at night in June and July and is attracted to light.

Figs 1,1a 1b,1c,1d,1e,1f,1g,!h 1i larvae after final moult 1j enlarged detail of segments- as E. minutata Figs 2,2a, 2b, 2c, 2d larvae after final moult 2e enlarged detail of segment

As the name suggests, the larva feeds on the flowers of mugwort (which is sometimes called "common wormwood"), but it will also feed on the flowers of a range of other plants (see list below). The species overwinters as a pupa.

Larval food plants

• Achillea
• Aconitum
• Artemisia
• Aster
• Calluna – heather
• Cirsium – creeping thistle
• Erica
• Eupatorium
• Pimpinella – burnet-saxifrage
• Senecio
• Solidago – goldenrod
• Tanacetum
• Tripleurospermum – Mayweed

Similar species

• Eupithecia assimilata.
• Eupithecia expallidata