British Insects: Pug moths (Lepidoptera-Geometridae)
Including suspp. arceuthata, millieraria and hibernica.
Freyers Pug, Edinburgh Pug, Meres Pug.
Adults. Posterior tibiae of males 4-spurred. Wingspan 21–26 mm. Forewings distinctly elongate, or distinctly elongate to not noticeably elongate; the outer margin convexly curved; the costa more or less straight (subspp. arceuthata and hibernica), or arched (subsp. millieraria); apically blunt.
Forewings relatively conspicuously patterned; grey (subspp. erceuthata and hibernica) or brown (subsp. milieraria), with fuscous ante-, postmedian and median striae either conspicuous only at the costa or extending across the wing; veins partially marked blackish and sometimes whitish; the paler terminal line obscure, the fringe conspicuously to inconspicuously chequered. The forewing patterning not restricted to dark discal or costal and discal spots. Forewings with a dark discal mark. The discal mark elongate; not whitish-edged; black and distinct. Forewings with a pale tornal spot to without a tornal spot. Forewing fringes conspicuously chequered to somewhat chequered.
Hindwings light brownish grey with only very faint darker striae, a fragmentary darker terminal line and a faint curved postmedian fascia, or (subsp. arceuthata) uniform with fasciae and striae obsolete; less conspicuously patterned than the forewings; rather plain; almost without transverse striation; with a clear discal mark (this dark grey); the fringes conspicuously chequered.
The abdomen conspicuously patterned to plain; with a fuscous sub-basal band.
Genitalia. The male abdominal plate in the form of a single sclerotized patch with entire apex. The bursa copulatrix with ornamentation conspicuously restricted in distribution (mostly distal); coarsely, conspicuously spiny (with large spines).
Early stages, ecology. Botanically specialised (at sub-species level). Foodplants Gymnospermous and woody-dicotyledonous; Cupressaceae and Tamaricaceae. The larvae found on conifers (Juniperus, Thuya, Chamaecyparis, etc.), and Tamarix.
Months of appearance, distribution. Adults abroad May, June, and July; larvae found June, July, and August. Central-southern England, South-west England, English Midlands, Northern England, Southern Scotland, Northern Scotland, Wales, and Ireland (represented in England by subsp. arceuthata, which is locally common northwards to Cheshire and north Yorkshire but seemingly absent from most of Wales; represented in Scotland by subsp. millieraria, and in Ireland by subsp. hibernica).
Special key characters. Forewings not dominated by double ante- and postmedian lines. Hindwings light brown, or brown, or pale fuscous, or pale grey.
General comments. Note that Meyricks description confused components of E. intricata with E. egenaria.
Illustrations. • E. intricata arceuthata and E. intricata millieraria (Edinburgh Pug), with larvae: Barrett. • E. intricata arceuthata, E. intricata millieraria, E. plumbeolata, E. satyrata and E. haworthiata, with larvae: Barrett. • E. intricata (Edinburgh Pug), with other Pugs: South. • Subspecies of of E. intricata (Edinburgh 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. http://delta-intkey.com’.