Main: (Noctuidae / Xyleninae)
73.218 [B&F: 2315] Heart Moth (Dicycla oo) (Linnaeus, 1758)

 

Notes: A rare Red Data Book species, in oak woodland in parts of southern England, a priority species under the UK Biodiversity Action Plan. Extremely erratic in its appearance, occurring commonly in one of its haunts for a few years, then declining to a very low ebb. Nationally only seen in numbers in parts of Surrey (particularly the central southern Surrey commons around Leatherhead, and in the extreme north-west) although it does survive in low density in a few other counties of southern England. In Hampshire the only recent records are of two in Pamber Forest in July 1993 and of one in Mortimer West End in July 1997. Not recorded from the Isle of Wight to date. Wingspan 32-38 mm. Characterised by heart-shaped reniform stigmata. Larva feeds on Pedunculate Oak, over-wintering as an egg.

Flightime guide
JFM AMJ JAS OND

Records Received By Year

% of total records
Max records: 2
                                           
90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13

Percentage of Total Records

Total records
Max Percentage: 0.00726797
                                           
90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13

Phenology - Adult Records

Max records: 3
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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