Main: (Noctuidae / Noctuinae)
73.347 [B&F: 2110a] Langmaid's Yellow Underwing (Noctua janthina) [Denis & Schiffermüller], 1775

 

An immigrant from mainland Europe, appearing in southern England, and now resident in small numbers along the south coast. First recorded in Britain by John Langmaid at Southsea, Hampshire, on 9 July 2001. Steadily increasing in frequency throughout the first two decades of the 21st century, it is now accepted as likely to be a low-density breeding species in parts of Hampshire and Isle of Wight. Wingspan 34-40 mm. Very similar to Lesser Broad-bordered Yellow Underwing N. janthe, from which separable in some cases only by dissection of genitalia. Set specimens of N. janthina are separable by black outer border of hindwing, which on N. janthe either stops before the costa or extends diffusely along it, while on N. janthina, it is generally broader, and extends along costa without a gap, so the overall effect is of a black hindwing with a yellow spot. On underside of forewing of N. janthe, the distal edge of black area is usually distinctly toothed. Larva feeds on various herbaceous plants. Some authorities dispute whether janthina is a separate species, as there is evidence of hybridisation on the continent.

Flightime guide
JFM AMJ JAS OND

Records Received By Year

% of total records
Max records: 36
     
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19

Percentage of Total Records

Total records
Max Percentage: 0.08071568
     
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19

Phenology - Adult Records

Max records: 51
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Distribution Map

Historical distribution at tetrad resolution
Click for density map

Record Density

As above but the larger the symbol, the greater the number of records
Click for distribution map

Web Hosting from Vision Internet Limited