Main: (Geometridae / Ennominae)
70.237 [B&F: 1917] Early Thorn (Selenia dentaria) (Fabricius, 1775)

 

Notes: Common in woodland, scrub, hedgerows, parks and gardens, throughout the British Isles. Wingspan 40-51 mm. The second, summer generation smaller and brighter than the spring generation. Larva feeds on various woody plants, including Blackthorn, Hawthorn, Hazel, Downy and Silver Birch, Alder, Sallow, Honeysuckle and Bog-myrtle, over-wintering as a pupa.

Flightime guide
JFM AMJ JAS OND

Records Received By Year

% of total records
Max records: 584
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: 0.32853606
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: 802
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Phenology - Larval 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
Click for distribution map
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