The leaf and stem mines of British flies and other insects
 

(Coleoptera, Diptera, Hymenoptera and Lepidoptera)

by Brian Pitkin, Willem Ellis, Colin Plant and Rob Edmunds

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Elachista subocellea (Stephens, 1834)
[Lepidoptera: Elachistidae]

Brown-barred Dwarf


Aphelosetia subocellea Stephens, 1834. Ill. Brit. Ent. 4: 290.
Elachista subocellea
(Stephens, 1834).


Leaf-miner: The larva feeds internally on a leaf of False Brome, forming a blister-like mine (UKMoths).

At first a narrow ascending corridor. The direction reverses and the mine develops into a broad, greenish, inconspicuous blotch, reminiscent of a tentiform mine, 5-8 cm long. Pupation external (Bladmineerders van Europa).

Larva: The larvae of moths have a head capsule and chewing mouthparts with opposable mandibles (see video of a gracillarid larva feeding), six thoracic legs and abdominal legs (see examples).

Dull green, head and prothoracic shield light brown. Prothoracic shield divided in two narrow elongate, distally enlarged, slerites (Traugott-Olsen and Nielsen, 1977a; Bland, 1996a) (Bladmineerders van Europa).

Pupa: The pupae of moths have visible head appendages, wings and legs which lie in sheaths (see examples).

Adult: The adult is illustrated in UKMoths. The male genitalia, but not the female genitalia (check for update), are illustrated by the Lepidoptera Dissection Group.

Hosts in Great Britain & Ireland:

Poaceae        
Brachypodium sylvaticum False Brome British Wild Flowers by John Somerville et al. Pitkin & Plant
Brachypodium sylvaticum False Brome British Wild Flowers by John Somerville et al. UKMoths

Hosts elsewhere:

Poaceae        
Brachypodium pinnatum Heath False-brome   Bladmineerders van Europa
Brachypodium sylvaticum False Brome British Wild Flowers by John Somerville et al. Bladmineerders van Europa

Time of year - larvae: End of April to beginning of June (Bladmineerders van Europa).

Time of year - adults: The moths fly in June and July, and are found in woods and woodland clearings rather than the typical grassland habitat of many Elachistidae (UKMoths).

Distribution in Great Britain & Ireland: Scattered distribution covering much of the British Isles (UKMoths) including Bedfordshire (VC30), Caernarvonshire (VC49), Cambridgeshire (VC29), Denbighshire (VC50), Derbyshire (VC57), East Kent (VC15), Flintshire (VC51), Herefordshire (VC36), Kincardineshire (VC91), North Wiltshire (VC7), South Aberdeenshire (VC92), South Wiltshire (VC8), Staffordshire (VC39), Surrey (VC17), West Gloucestershire (VC34), West Kent (VC16), West Norfolk (VC28), West Suffolk (VC26) and Worcestershire (VC37) (NBN Gateway) and Ireland (Karsholt and van Nieukerken in Fauna Europaea). Generally commonest in the southern part of England (UKMoths).

Also recorded in the Republic of Ireland (Ireland's NBDC interactive map).

NBN Grid Map:

NBN Grid Map

Elachista subocellea
NBN Grid Map : NBN Terms and Conditions

Maps are only displayed if the NBN server is active. N.B. Only publicly available records, if any, are shown by default

Distribution elsewhere: Widespread in continental Europe including Austria, Belgium, Czech Republic, Estonia, Finland, French mainland, Germany, Hungary, Italian mainland, Latvia, Liechtenstein, Luxembourg, Poland, Romania, Slovakia, Spanish mainland, Sweden, Switzerland and The Netherlands (Karsholt and van Nieukerken in Fauna Europaea).

NBN Interactive Grid Maps of known host species:

Brachypodium pinnatum, Brachypodium sylvaticum

British and Irish Parasitoids in Britain and elsewhere: Currently unknown.



External links: Search the internet:

Belgian Lepidoptera
Biodiversity Heritage Library
Bladmineerders van Europa
British leafminers
Encyclopedia of Life
Fauna Europaea
NBN Gateway
NHM UK Checklist
UKMoths

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Last updated 21-Jul-2016  Brian Pitkin Top of page