35.015 Nothris verbascella (Hübner, 1813)

Status and Distribution

Formerly found at two locations in Norfolk and one in Suffolk and was last seen in West Norfolk in 1971. Searches at this last location from the late 1980s onwards, where the foodplant is still present, have failed to relocate the moth and it is now considered extinct in the British Isles. A record from Monk Haven, Pembrokeshire has not been possible to confirm and is thought to have been entered in error but the food-plant does occur in that county.

National Status: 

Extinct

Bradley & Fletcher no: 

838
Photographer: T Green
Location: Extinct in Britain - this photo taken in France

Provisional Map

Maps updated with all data received by February 2018.

    Imago

    Nothris verbascella, bred France (Photo: T Green)  Nothris verbascella, bred France (Photo: T Green)  Nothris verbascella, France 2019 (Photo: T Green)

    Photographs depict moths bred from a Verbascum sp. in France.

    Larva

    Nothris verbascella larva France 2019 (Photo: T Green)  Nothris verbascella larva France 2019 (Photo: T Green)  Nothris verbascella larvae France 2019 (Photo: T Green)

    Photographs depict larvae on a Verbascum sp. in France.

    Dissection Group

    Foodplant and Larval Feeding Signs

    Nothris verbascella feedings signs France 2019 (Photo: T Green)  Nothris verbascella feedings signs France 2019 (Photo: T Green)

    These two photographs are of feeding signs on a Verbascum sp. in France.

    Verbascum pulverulentum (hoary mullein), see plant distribution map. In Europe reported from Verbascum densiflorum (dense-flowered mullein), V. phlomoides (orange mullein) and V. thapsus (great mullein).

    Before extinction in Britain, larva could be found throughout the year, initially gregariously on undeveloped leaves in the centre of the plant. In the spring newly emerged larvae were found feeding on younger leaves or boring into stalks or stems, while the over-wintered larvae fed under the larger lower leaves in a silken web.

    Foodplant Map

    Habitat

    Formerly found on disturbed ground such as gravel-pits and quarries (the plants original 'natural' habitat is on coastal shingle).

    Finding the Moth

    Searches of sites where the foodplant still occurs in any abundance would be worthwhile at any time of year for the larvae.

    Similar Species

    A distinctive pale buff moth with a single prominent black spot on the forewing at two-thirds. Not likely to be confused with any other species.

    Larval Occurrence

    Larval Occurrence

    Flight Period

    Flight Period

    This species was possibly double-brooded before becoming extinct in Britain with adults emerging from May to September and with peaks in June and September. The September moths are smaller than those in June. There was insufficient data on adults observed in the wild with most records relating to bred specimens.