Species Account

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Summary Data

Season (Adult / Immature):

National Status: Common

Local Status: Common and thinly distributed or restricted resident.

Local Record: Grade 2   See here for explanation

Flight time: May-Jun

Forewing: 3.5-5mm.

Foodplant: Liverworts

Regional breakdown:

Year first recorded19041859188318831883
Year last recorded20142014201320142014
Number of records3227226313
Number of individuals4926151630967
Unique positions131616487
Unique locations141616437
Adult records3025206112
Immature records00000

For the county, we have a total of 157 records from 96 sites. First recorded in 1859.


01.005 Micropterix calthella 03
© Dave Shenton
01.005 Micropterix calthella 02
© Dave Williamson, 31 May 2011
01.005 Micropterix calthella 01
© Dave Williamson, 31 May 2011

Species Account

For further information refer UK Moths.

Sutton & Beaumont, 1989: Recorded from all five vice-counties, and is locally common to abundant.

2012 (CHF): This species can be difficult to separate from females of Micropterix aruncella but calthella has the base of the forewing entirely purple whereas aruncella has purple only on the costa. M. calthella can often be found in good numbers especially on Caltha and Ranunculus flowers.

See background to species accounts.  Index of Vernacular names - Search - Random Species