Main: (Lycaenidae / Theclinae)
61.020 [B&F: 1575] Chalk Hill Blue (Polyommatus coridon) (Poda, 1761)

 

Notes: A rare Red Data Book species, on chalk downland, south-facing hillsides and quarries; 100-400 m (100-2200 m in Europe) in parts of southern England; mainland Europe, less numerous in the south-west. In Hampshire there are strong populations on Old Winchester Hill, Martin Down, Stockbridge Down and Portsdown Hill, and throughout the Isle of Wight. Wingspan 30-36 mm. Larva feeds on Horseshoe Vetch.

Flightime guide
JFM AMJ JAS OND

Records Received By Year

% of total records
Max records: 1050
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: 0.55847347
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: 1505
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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