Photo © Andy Mitchell

Sitochroa verticalis

Checklist Number
63.015 [B&F: 1371]

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

Classification

Family:Crambidae
Subfamily:Pyraustinae
Genus:Sitochroa
Species:verticalis
Authority:(Linnaeus, 1758)

Local in farmland and rough grassland throughout much of southern England, also appearing as a migrant from mainland Europe in some years, reinforcing the native population. In Hampshire and Isle of Wight once widespread, but now thought to have been lost from the county. In the past 50 years there have been only four records (as at 2017): on Hayling in 1971, Sherborne St John 2005 and in North End, Portsmouth in 2015 (the report of one in Southsea in 1981, in Goater and Norriss, 2001, is in error). The worn specimen at Sherborne St John in deepest North Hampshire might hold out some hope that a remnant population may exist at a very low level. Wingspan 30-34 mm. The main confusion species is European Corn Borer Ostrinia nubilalis, from which distinguished by the strongly and characteristically marked underside. Larva feeds on various herbaceous plants, including Thistle, Goosefoot, Nettle, Knapweed, Cornflower and Violet.

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
Sandown (SZ58)1856-IWGAdult
St Helens (SZ68)1856-IWGAdult
Freshwater (SZ38)1900-K G BlairAdult

VC11 South Hampshire

Site Date Quantity Recorder Stage
Leckford (SU33)1945-D H Sterling-
Hayling (SU70)05/07/1971-Robert PalmerAdult
North End (SU60)16/07/2015oneMike WearingAdult

VC12 North Hampshire

Site Date Quantity Recorder Stage
Sherborne St John (SU65)08/07/2005oneNick MontegriffoAdult