About Celaena haworthii Curtis, 1829
The wingspan of Celaena haworthii Curtis, 1829 ranges from 25 to 30 mm. Its forewings are brown with a reddish tint. The lines on the forewing are dark and indistinct; the outer line is followed by a pale oblique band that extends to vein 6. The submarginal line, positioned close to the wing margin, is dentate and whitish, preceded by a dark shade that holds three or four black wedge-shaped marks. The orbicular stigma is small, annular, and rufous, and is sometimes absent. The reniform stigma is ochreous with a rufous center, and is entirely white in some specimens. The claviform stigma is short and black. The median vein and the bases of veins 3 and 4, and usually vein 1, are white or whitish. The hindwing is dull brownish, and becomes darker along the termen. The cellspot and outer line on the hindwing are dark. The British form of this species is smaller and has less bright markings than the continental form erupta Germ. The continental form erupta Germ. is velvety brown-black, dusted with pale scales in some areas, has all pale markings that are stronger, especially the stigmata, and has no reddish tinge, or at least no prominent reddish tinge. The aberration hibernica Stph. found in Ireland is redder, with pale markings that are less well defined.