Main: (Erebidae / Lymantriinae)
72.010 [B&F: 2033] Black Arches (Lymantria monacha) (Linnaeus, 1758)

 

Local in woodland, especially of oak throughout southern England and Wales, north to Cheshire; common and widespread in Hampshire and the Isle of Wight. Wingspan male 44-47 mm, female 48-54 mm. Normally unmistakable, but the infrequent f. eremita is entirely sooty grey with cross-lines obscured, and could be mistaken for male Gypsy Moth L. dispar. Larva feeds on Pedunculate and Sessile Oak, causing sufficient damage to be a serious pest in some areas, and over-wintering as an egg.

Flightime guide
StageJFM AMJ JAS OND
Adult
Larval

Records Received By Year

% of total records
Max records: 474
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20

Percentage of Total Records

Total records
Max Percentage: 0.43979153
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20

Phenology - Adult Records

Max records: 1242
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Phenology - Larval Records

Max records: 10
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

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