35.090 Prolita solutella (Zeller, 1839)

Status and Distribution

Scarce, with recent records indicating there are only two remaining areas for this species - in Cornwall and in the Scottish Highlands. Last recorded in northern England in 1921.

National Status: 

pRDB 2

Bradley & Fletcher no: 

795

Provisional Map

Maps updated with all data received by February 2018.

    Imago

    Prolita solutella, Cornwall (Photo: M Parsons/Butterfly Conservation)

    Larva

    Set Specimens

    Dissection Group

    Foodplant and Larval Feeding Signs

    Prolita solutella spinnings on Genista pilosa, Cornwall (Photo: S Beavan)

    Genista anglica (petty whin), the prostrate form, in Scotland, see plant distribution map, and Genista pilosa (hairy greenweed) in Cornwall. In Europe also recorded on Genista tinctoria (dyer's greenweed) and Cytisus sp. (broom).

    In a silken tube near the ground.

    Foodplant Map

    Habitat

    Prolita solutella habitat, Morron Hill, Scotland (Photo: S M Palmer)

    Dry, herb rich, often cattle grazed pasture in Scotland and dry coastal grassland heath in Cornwall.

    Finding the Moth

    Larva: in a silken tube at the base of the plant (in Scotland the moth utilises the prostrate form of its foodplant) from late June to mid-September.

    Adult: flies in sunshine making short flights close to the ground, can be disturbed during mid-morning and occasionally comes to light.

    In view of the scarcity of this species in England, it is recommended that no collection of larvae or adults takes place at the Cornish colony. Should the species be suspected from a new or previously known site in England it may be necessary to retain a single voucher specimen. Do please pass the details to your County Moth Recorder.

    Similar Species

    Some smaller examples of Prolita solutella which has a wingspan from 16-21mm (P. sexpunctella is 13-17mm), with the forewings light grey and with black fasciae, are similar to P. sexpunctella. The species can be separated by the presence of the whitish distal area on each segment of the abdomen in P. sexpunctella, absent in P. solutella.

    Larval Occurrence

    Larval Occurrence

    Flight Period

    Flight Period

    Single brooded from mid-May to late June.

    Earliest: 14th May 1998 (VC96)

    Latest: 1st July 1909 (VC96)