Main: (Noctuidae / Plusiinae)
73.003 [B&F: 2432] Ni Moth (Trichoplusia ni) (Hübner, [1803])


Immigrant, from southern Europe, appearing erratically as an immigrant north to Cumbria, increasingly annual in occurrence, sometimes in good numbers, and breeding in favourable years. In Hampshire and on the Isle of Wight a scarce to moderately common immigrant which is widely distributed throughout in some years. Wingspan 30-40 mm. Must be separated from the far more numerous immigrant Silver Y Autographa gamma, which has the silver Y mark unbroken (in Ni Moth, the tail of the Y is detached from the body), and the much darker Scarce Silver Y Syngrapha interrogationis, which also occurs as an immigrant in southern counties and which is resident in northern Britain. Larva polyphagous on various herbaceous plants, including Sea Rocket and Mouse-ear Hawkweed, but unable to over-winter in significant numbers.

Flightime guide

Records Received By Year

% of total records
Max records: 52
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: 0.031163663
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: 34
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
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