British Insects: Pug moths (Lepidoptera-Geometridae)


L. Watson and M. J. Dallwitz

Eupithecia satyrata (Hübner)

Satyraria Boisduval; including forms satyrata, callunaria Doubleday and curzoni Gregson.

Satyr Pug, Beech Pug.

Adults. Posterior tibiae of males 4-spurred. Wingspan 19–22 mm. Forewings not noticeably elongate; margin convexly curved; more or less straight; apically rather somewhat pointed.

Forewings relatively conspicuously patterned; fuscous or grey, somewhat whitish-mixed, with darker obtusely angulated striae and usually with a darker marginal band, the veins marked alternately blackish and white, the subterminal line incomplete or absent save tornally; much more conspicuously striated and banded in f. curzoni than in the other forms. Forewings usually with a dark discal mark (though this often minute). The discal mark dot-like; not whitish-edged. Forewings with a pale tornal spot. Forewing fringes conspicuously chequered to not chequered.

Hindwings coloured and patterned more or less like the forewings, or basally paler; less conspicuously patterned than the forewings (sometimes only very obscurely so); conspicuously patterned (in f. curzoni), or conspicuously patterned to rather plain; transversely striated (more conspicuously so in f. curzoni); with a clear discal mark to without a clear discal mark; the fringes conspicuously chequered to not conspicuously chequered.

The abdomen plain (mixed white); neither ringed nor banded nor white-based; laterally neither black-streaked nor black-spotted.

Genitalia. The male abdominal plate in the form of two separate sclerotized components (this elongate-triangular). The bursa copulatrix ornamented over most of its surface to with ornamentation conspicuously restricted in distribution; conspicuously spiny (but with relatively few large ones).

Early stages, ecology. Botanically widely polyphagous. Foodplants herbaceous-dicotyledonous; Compositae (Asteraceae), Dipsacaceae, Ericaceae, Gentianaceae, Hypericaceae, Labiatae (Lamiaceae), Polygonaeae, Rubiaceae, and Scrophulariaceae (etc.?). The larvae found on numerous species from diverse dicot families; feeding on flowers.

Months of appearance, distribution. Adults abroad May and June; larvae found August and September. South-east England, Central-southern England, South-west England, English Midlands, Northern England, Southern Scotland, Northern Scotland, Wales, and Ireland (widespread and locally common, but less so in southeastern England).

Special key characters. Forewings not dominated by double ante- and postmedian lines; not reddish-tinged. Hindwings pale fuscous, or fuscous, or pale grey, or grey.

Illustrations. • E. satyrata (Satyr Pug), with larva: Barrett. • E. intricata arceuthata, E. intricata millieraria, E. plumbeolata, E. satyrata and E. haworthiata, with larvae: Barrett. • E. satyrata (Satyr Pug), with other Pugs: South. • E. satyrata satyrata, with 9 other pugs illustrated by Hubner (1790–1817). • Subspecies of E. satyrata (Satyr Pug), with other Pugs: Swain.

To view the illustrations with detailed captions, go to the interactive key. This also offers full and partial descriptions, diagnostic descriptions, differences and similarities between taxa, lists of taxa exhibiting or lacking specified attributes, and distributions of character states within any set of taxa.

Cite this publication as: ‘Watson, L., and Dallwitz, M.J. 2003 onwards. British insects: Pug moths (Lepidoptera-Geometridae). Version: 29th December 2011.’.