Photo © Keith Tailby

Thisanotia chrysonuchella

Checklist Number
63.107 [B&F: 1321]

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

Classification

Family:Crambidae
Subfamily:Crambinae
Genus:Thisanotia
Species:chrysonuchella
Authority:(Scopoli, 1763)

Nationally scarce (Nb) in dry sandy areas, calcareous grassland, sand-dunes and sea cliffs in parts of southern England and Breckland. In Hampshire and on the Isle of Wight there are recent records only from Arreton Down HWT reserve on the Island, formerly more widespread. Wingspan 23-26 mm. An unmistakable species: the Chrysocrambus species have wings of similar shape but with fine dark longitudinal striae and sharply defined, narrow median and subterminal cross-lines [Goater]. Larva feeds on stems of Sheep's-fescue and various grasses, living within a silken tube or tent.

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
Freshwater Down (SZ38)1856-IWGAdult
Steephill Cove (SZ57)1856-IWGAdult
Ventnor (SZ57)1880-SouthAdult
Freshwater (SZ38)1900-K G BlairAdult
Brook (SZ38)1900-K G BlairAdult
Chale Green (SZ47)28/05/1993oneSimon ColenuttAdult
Shanklin (SZ58)25/06/2001oneJim M ChevertonAdult
Arreton Down (SZ58)05/06/2004twoMartin C HarveyAdult
Arreton Down (SZ58)09/06/2005fiveSam Knill-JonesAdult
Arreton Down (SZ58)19/06/2005fourTim NorrissAdult
Arreton Down (SZ58)01/06/2011twoTim Norriss, Lynn FomisonAdult
Arreton Down (SZ58)25/05/2014oneRob WilsonAdult