Species Account

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Summary Data

Season (Adult / Immature):

National Status: Migrant

Local Status: Scarce and thinly distributed and restricted resident.

Local Record: Grade 3   See here for explanation

Flight time: Mid Jun-Aug.

Forewing: 9-11mm.

Foodplant: Oak.

IMPORTANT - Please note that the maps and accounts are provisional, subject to change and further update.  The whole dataset still needs to go through the final verification process and it is likely that a very small number of records will not satisfy the present requirements and there are other records that have not been formally submitted.  The information is for guidance only.

Record breakdown:

Year first recorded187019941870
Year last recorded200819942008
Number of records33168
Number of individuals47094
Unique positions12126
Unique locations9120
Adult records30162
Immature records000

For the region, we have a total of 68 records from 20 sites. Earliest record on file is in 1870.


1435 Conobathra tumidana 02
© Paul Harris
1435 Conobathra tumidana 01
© Martin Cade, 27 Jun 2011

Species Account

For further information refer UK Moths.

Davey, P., 2009: A local species restricted to southern and western districts of England, the larva feeding in spun leaves of oak (Quercus spp.). In Dorset, thirty-one examples have been recorded on seventeen occasions, many of these from light traps and most fall within the last ten years following an absence of ninety years. All of these are suspected immigrants from the Continent; dates coincided with notable influxes of other migrant Lepidoptera. The wind rose indicates the direction of the airflows on the associated dates, and the strong bias towards a south-easterly quarter suggests a central or southern European source for many of the individuals: West Bexington, on 31 August 1998 (R Eden), 1 September 1998 (Dr P Sterling), Glanvilles Wootton, on 4 July 1870 (J Dale), 15 July 1901 (C Dale), Wyke Regis, on 4 July 2006 (D Foot), Portland, two on 1 September 1998, two on 4 and one on 8 July 2001, 23 and 26 June 2003, 14 July 2003, 27 June, two on 3 July, 9 July, 13 July 2005, on 6 and 19 July 2006 (M Cade), Weymouth, on 24 August 1999 (Dr P Sterling), Preston, on 25 and 26 June 2003 (R Lambert), Gaunts Common, on 3 August 1994 (P Davey), Durlston, four on 31 August 1998 (P Davey), 4 July 2001, 3 September 2002, 25 June 2004, 21 July 2006 (S Nash), three on 26 June 2003 (P Davey), on 14 August 2004 (C Manley), Studland, on 7 August 1904 (Reverend F Fisher), Iford, on 4 August 1994 (M Jeffes).

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