Photo © David G Green

Square-spotted Clay

Xestia stigmatica

Checklist Number
73.354 [B&F: 2131]

Verification
Record requires retention of specimen until confirmed, and may require dissection. Consult with CMR if unsure

Classification

Family:Noctuidae
Subfamily:Noctuinae
Genus:Xestia
Species:stigmatica
Authority:(Hübner, [1813])

Nationally scarce (Nb), declining, in ancient broad-leaved woodland, woodland clearings and scrub. Since 1980 the main areas have been the Chiltern beechwoods of Oxfordshire, Buckinghamshire and Berkshire, and acidic, thin-soiled areas around Guildford and Reading, the Brecklands of Norfolk and Suffolk, and the North Yorkshire Moors. In Hampshire, there are very few records, the most recent being one in the Loddon Valley at Old Basing in 2004. In the past, it was stated to be locally fairly common, e.g. Brockenhurst, Farley Mount and Michelmersh v.c.11, Harewood Forest and Micheldever v.c.12. There are no recent records from the Isle of Wight. Wingspan 37-44mm. Distinguished from Triple-spotted Clay X. ditrapezium by its broader wing-shape, duller colour and the absence of a subapical spot on the forewing (MBGBI Vol 9). A good photograph or specimen is required for this species to be considered for acceptance. Larva feeds on Stinging Nettle, Dog's Mercury and Oxlip.

The abundance in each month is indicated as follows:

No records
Very occasional
Irregular
Uncommon
Off-peak, but not unusual
Off-peak, but not unusual
Main flight time
J F M A M J J A S O N D
Adult
Larval

Records by week (adult)

Records by week (larval)

No Larval records to show.

VC10 Isle of Wight

Site Date Quantity Recorder Stage
Cowes (SZ49)1949oneC W PierceAdult

VC11 South Hampshire

Site Date Quantity Recorder Stage
Bournemouth College of Technology (SZ09)1973sixRothamsted Insect SurveyAdult
Denny Wood, NF (SU30)01/07/1983-Anon-
Standing Hat (SU30)01/08/1983-Anon-

VC12 North Hampshire

Site Date Quantity Recorder Stage
Harewood Forest (SU34)1800-Unknown-
Harewood Forest (SU34)07/08/1931sixCH DixonAdult
Old Burghclere (SU45)1950oneRobert SaundbyAdult
Micheldever (SU54)1953eightCH DixonAdult
Old Basing (SU65)07/08/2004oneTim NorrissAdult
Old Basing (SU65)07/08/2004oneTony Davis, Tim NorrissAdult
Fleet (SU85)15/09/2006sevenGraham C StephensonAdult
Fleet (SU85)27/09/2006oneGraham C StephensonAdult
Pamber Forest (SU66)06/08/2009oneGraham DennisAdult