Flight: Mid-June to late September. Wingspan 45-55 mm. Lacks dark discal spot present in Noctua comes. Identification difficulty. Noctua pronuba (Linnaeus, 1758) Large Yellow Underwing species Accepted Name authority: UKSI Establishment means: Native. Subfamily: Noctuinae. In response to the coronavirus problem and the Government's recommendations, the EFC Green Centre public activities will be closed until further notice. Habitat. Forewing color and pattern is variable, ranging from immaculate to well marked. Large Yellow Underwing - Noctua pronuba.

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Identification: Yellow hindwing and black marginal band.

Life History: Adults are nocturnal. The crosslines are weak. It exhibits a wide range of colour forms and patterns, although the yellow hindwings bordered with black remain pretty constant.
Noctua comes (38-48 mm wingspan) has a large discal spot on each hindwing and lacks the double black spot on each forewing.

Thank you. European Yellow Underwing Noctua pronuba (Linnaeus, 1758) Family: Noctuidae.

In some years the species is highly migratory with large numbers appearing suddenly in marginal parts of the range. The large yellow underwing (Noctua pronuba) is a moth, the type species for the family Noctuidae. The forewings are equally variable in pattern and colour, from pale clay to reddish clay, light brown to almost black. Wing Span: 2.1-2.6 cm. It is an abundant species throughout the Palearctic ecozone, one of the most common and most familiar moths of the region. Description. Noctua fimbriata is of a similar size to N. pronuba but the black border on the hindwings is very broad (almost one-half width of the wing). This species generally has the appearance of a smaller (wingspan 38–48 mm) version of the large yellow underwing Noctua pronuba. The stigmata are dark and outlined with pale yellow. Overview; Gallery; Names; Classification; Records; Literature; Sequences; Data Partners + Online Resources.