Species Account

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Distribution


 
 

Summary Data


Season (Adult / Immature):

National Status: Common

Local Status: Rare and local resident.

Local Record: Grade G   See here for explanation

Flight time: One generation, May-Jul.

Forewing: 11-13mm.

Foodplant: Grasses.

Regional breakdown:

 VC61VC62VC63VC64VC65
Year first recorded19471987198019682002
Year last recorded20142012201420142013
Number of records2421245268
Number of individuals23793643714
Unique positions201124207
Unique locations221123195
Adult records2421245268
Immature records00000

For the county, we have a total of 333 records from 80 sites. First recorded in 1947.
 

Photos


2337 Marbled Minor 01
© Alan Draper

Species Account


Sutton & Beaumont, 1989: This species is recorded as widespread and often common. However, melanics prevail in O. strigilis, O. versicolor (Borkhausen) and O. latruncula (Denis & Schifferrnuller) and they cannot be separated on wing markings alone. In Sheffield, when genitalia checks were made most specimens, originally put as this species, were found to be O. latruncula (Garland, 1979). However, in Derbyshire O. versicolor has been found to be as common as, or more common than, O. strigilis in some areas (Harrison & Sterling, 1986). Thus the status of this species in the County needs more careful examination before sweeping statements can be made, although there are already comments on relative abundances from several areas in the County. There are definite records from all five vice-counties.

2012 (CHF): This species is of course much more common than the distribution map suggests. It is not considered safe to separate Marbled Minor and Tawny Marbled Minor on the basis of forewing markings and they should be recorded as the aggregate species unless they have been dissected. There are confirmed records of this species from all over the county and it is likely to be widespread and common.
 

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