Species Account

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Summary Data

Season (Adult / Immature):

National Status: Local

Local Status: Rare and very local resident.

Local Record: Grade 4   See here for explanation

Flight time: Jun.

Forewing: 4-6mm.

Foodplant: Hart's-tongue fern. Initially mines fronds, before producing larval case.

Regional breakdown:

Year first recorded185620121859
Year last recorded201220151859
Number of records1121
Number of individuals1000
Unique positions621
Unique locations521
Adult records801
Immature records320

For the county, we have a total of 14 records from 8 sites. First recorded in 1856.


12.047 Psychoides verhuella 06
© Damian Money
12.047 Psychoides verhuella 05
© Damian Money
12.047 Psychoides verhuella 04 larva
© Charles Fletcher, 28 Mar 2012
12.047 Psychoides verhuella 03 mine
© Damian Money
12.047 Psychoides verhuella 02 case
© Dave Shenton
12.047 Psychoides verhuella 01 larva and case
© Dave Shenton

Species Account

Sutton & Beaumont, 1989:
VC62. Near Whitby, larvae mining the leaves of hart's-tongue fern ('Scolopendrium vulgare'), December 1856 by Mr Braim (Stainton, 1858b).

2013 (CHF): After a gap of 150 years, this species was refound in the north-east of VC62 in 2009 and there have been several subsequent records. It has also been found in VC64. All records have been of mines in hart's-tongue fern though it will also use other fern species at times. The larvae initially mines the frond but is more often located after hibernation when it mines the sporangia under the leaf, making what looks like an untidy "displaced" sporangium. The black head of the larva distinguishes this species from Psychiodes filicivora.

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