Insects of Britain and Ireland: the families of Lepidoptera
Oinophilidae, Opogonidae. ~ Tineidae.
Adults relatively long-bodied; relatively slender-bodied (wingspan more than 15 times the thoracic width) to medium built (wingspan more than 8 and less than 15 times the thoracic width); wings in repose packed with the forewings directed backwards to cover hindwings and abdomen.
Head rough (the crown roughly tufted, in Oinophila). Antennae long; extending to about about 0.8 times the length of the forewing. Antennae of males simple; non-ciliate. The antennal scape without a pecten; not forming an eye cap. Ocelli present. Chaetosemata absent. Maxillary palps well developed (fairly long); 3–5 segmented (? - several jointed); folded (filiform). Labial palps well developed; porrect; 3 segmented. Proboscis absent (obsolete).
Wingspan 8–12 mm (Oinophila), or 20–28 mm (in Opogona); 14–16 times the thoracic width. Forewings with their apices conspicuously bent up or down when the insect is at rest (downturned, in Oinophila); narrow; about 4–4.6 times as long as wide. Tornus undetectable. Forewings apically pointed; ground colour predominantly ochreous-fuscous. Hindwings narrow-elongate and very long-fringed; linear to linear-lanceolate; very much narrower than the forewings to quite markedly narrower than the forewings; with a pointed apex. The fringe of the hindwings 5–6 times the width of the membrane. The upper surfaces plain; with neither discal spot nor transverse lines; hindwings with a frenulum.
Neuration of forewings and hindwings dissimilar. Forewings with well developed neuration (Opogona), or with greatly reduced neuration (veins 3, 4 and 11 lacking in Oinophila); 9 veined (Oinophila), or 14 veined (Opogona); with 1 anal vein, or with 2 anal veins (in Opogona?). The anal veins of the forewings representing 1b only, or comprising 1b and 1c. Forewings exhibiting a tubular vein 1c (in Opogona?), or lacking a tubular vein 1c. Vein 1b of the forewings simple. Forewings with a discal cell. Discal cell of the forewings without a tubular media (M) vein. Hindwings with greatly reduced neuration; 6–7 veined; seemingly lacking anal veins; without a discal cell.
Fore-legs with a tibial epiphysis. Tibiae of middle legs 2-spurred. Posterior tibiae 4-spurred; hairy.
Eggs, larvae and pupae. Larval prolegs 10. Larvae more or less concealed feeders, or exposed feeders (those of Oinophila v-flava forming silken galleries, in fungi and refuse).
Empty pupae protruded from place of concealment.
British representation. Genera 2 (Oinophila, Opogona); 3 species (both Opogona species being adventive).
Classification. Microlepidoptera. Suborder Ditrysia. Superfamily Tineoidea.
Illustrations. • Oinophila v-flava. • Oinophila v-flava: neuration.
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. Insects of Britain and Ireland: the families of Lepidoptera. Version: 8th June 2016. delta-intkey.com’.