Main: (Gracillariidae / Gracillariinae)
15.009 [B&F: 0287] Caloptilia robustella Jäckh, 1972

 

Notes: Common in oak woodland and areas with scattered trees throughout Britain, as far north as Aberdeenshire; common in the south-east but rare in the west and north of its range; its apparent absence from much of the Midlands and central and southern Wales may be due to under-recording (MBGBI Vol 2). In Hampshire and on the Isle of Wight more common than C. alchimiella. Wingspan 10-13 mm. Easily confused with C. alchimiella, from which it can only safely be separated by dissection of the genitalia; both feed on oak, but C. alchimiella is probably univoltine with a protracted emergence period, while C. robustella is bivoltine. Larva mines leaves of Oak, subsequently living within a leaf-fold, over-wintering as a pupa.

Flightime guide
JFM AMJ JAS OND

Records Received By Year

% of total records
Max records: 39
 
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: 0.059524994
 
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: 43
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Phenology - Larval Records

Max records: 7
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Distribution Map

Historical distribution at tetrad resolution
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Record Density

As above but the larger the symbol, the greater the number of records
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