Main: (Limacodidae / Limacodinae)
53.002 [B&F: 0174] Triangle (Heterogenea asella) ([Denis & Schiffermüller], 1775)

 

Notes: A rare Red Data Book species in oak and beech woodland. There are post-1980 records from Essex, Kent, East Sussex, Hampshire, south Wiltshire, Devon and Cornwall, but the species is very local and scarce throughout its range. In Hampshire most records come from the New Forest where it is now scarce, although annual on Wickham Common: some signs that there has been a recent upturn in sightings in recent years, and it was recorded from the Isle of Wight for the first time in 2015. Wingspan male 14-19 mm, female 16-22 mm. Larva feeds on Oak and Beech, over-wintering in a cocoon.

Flightime guide
JFM AMJ JAS OND

Records Received By Year

% of total records
Max records: 8
                     
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: 0.006224034
                     
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: 15
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Phenology - Larval Records

Max records: 1
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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