Species Details

ABH: 35.053

BF: 729

Family: Gelechiidae

Subfamily: Anomologinae

Taxon: Isophrictis striatella

=Isophrictis anthemidella

Authority: ([Denis & Schiffermüller], 1775)

Vernacular: Tansy Stem Borer

Account: Nationally scarce (Nb) on waste ground, roadside verges, gardens, damp grassland and fens in Britain, from Devon to Norfolk, with isolated populations in north Wales, northern England and Aberdeenshire Outwardly oblique white streak from costa at four-fifths to middle of termen, extending into cilia; two or three white specks on costa between streak and apex; distinct circular discal spot (MBGBI Vol 4 part 2). Larva feeds within seedheads of Tansy and Sneezewort, over-wintering in a silken chamber.

Accounts provided by and used with the kind permission of Mike Wall, Hampshire County Moth Recorder. These will in due course be gradually replaced with species accounts with a Surrey context.

Wingspan: 11 — 13 mm

Surrey Flight Period: 15 Jul (2004) — 10 Aug (2007)

The flight period of overwintering adults are not given. See the flight chart below the distribution map.

Foodplant: Achillea ptarmica (Sneezewort), Tanacetum vulgare (Tansy).

Foodplant accounts are from the HOSTS database — Natural History Museum, London, UK. (CC0).

Status: Nationally Scarce B

UK BAP:

WCA:

Click here to view the full geology map of Surrey.

Verification Grade: 2 — Care needed to identify, an image may be required 🤔
Further Information: https://www.ukmoths.org.uk/species/isophrictis-striatella/
Statistics

* Based on adult records only.

Records: 2

Individuals: 0

Earliest Year: 2004

Latest Year: 2007

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