Photo © David Shute

Rest Harrow

Aplasta ononaria

Checklist Number
70.296 [B&F: 1664]

Verification
Record will be accepted (subject to date and location checks)

Classification

Family:Geometridae
Subfamily:Geometrinae
Genus:Aplasta
Species:ononaria
Authority:(Fuessly, 1783)

A rare Red Data Book species, on calcareous grassland and sand-dunes in parts of Kent, predominantly coastal, a priority species under the UK Biodiversity Action Plan. Also occurs as a vary rare immigrant from mainland Europe, appearing sporadically on the southern coast of England. In Hampshire there are just four records, the most recent being at Southsea in July 1959 and Rowlands Castle in July 1962. On the Isle of Wight, recorded for the first time at Ventnor in August 2005. Wingspan 26-31 mm. Unmistakable. Larva feeds on Common Restharrow.

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
Bonchurch (SZ57)17/08/2005oneJames HalseyAdult

VC11 South Hampshire

Site Date Quantity Recorder Stage
NF (SU30)1909oneUnknownAdult
NF (SU30)1924oneUnknownAdult
Southsea (SZ69)15/07/1959oneRoger HaywardAdult
Rowlands Castle (SU71)09/07/1962oneD W H FfennellAdult

VC12 North Hampshire

Site Date Quantity Recorder Stage
Cheriton (SU52)10/08/2020oneDavid ShuteAdult