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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Mompha raschkiella (Zeller, 1839)
[Lepidoptera: Momphidae]

Little Cosmet


Elachista raschkiella Zeller, 1839. Isis: 211.
Mompha raschkiella
(Zeller, 1839).


Leaf-miner: A narrow gallery, often following the midrib, occasionally tinged red at the edges. This leads to a yellowish blotch containing dispersed frass (British leafminers).

The oval, iridescent egg is deposited at the upperside of the leaf, mostly close to the midrib. Here starts a gallery, at first narrow and hardly widening, the first cm not always full depth, often making a few loops around the egg and/or running along the midrib for some distance. Parts of the leaf cut off by a corridor loop often turn red. Frass in small, grey grains, dispersed, not glued to floor or ceiling of the mine. Later the larva makes a full depth blotch; mostly in continuation to the corridor, but the larva can also leave the mine and restart elsewhere, which may happen already at this stage. A new mine begins with a hole where tha larva has gained entrance, end ends in an untidy exit. The larva lies venter-upwards in the mine. Pupation external (Bladmineerders van Europa).

The mine is also illustrated in UKMoths.

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).

The larva is illustrated in Bladmineerders van Europa.

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

On the ground amongst detritus (British leafminers).

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

Hosts in Great Britain & Ireland:

Onagraceae        
Chamerion angustifolium Rosebay Willowherb British Wild Flowers by John Somerville et al. British leafminers
Chamerion angustifolium Rosebay Willowherb British Wild Flowers by John Somerville et al. UKMoths

Hosts elsewhere:

Onagraceae        
Chamerion angustifolium Rosebay Willowherb British Wild Flowers by John Somerville et al. Bladmineerders van Europa

Time of year - larvae: June - July, September (British leafminers).

Time of year - adults: Two generations in the year, flying during May and again in August (UKMoths).

Distribution in Great Britain & Ireland: Occurs over much of mainland Britain (UKMoths), including Anglesey (VC52), Banffshire (VC94), Bedfordshire (VC30), Buckinghamshire (VC24), Caernarvonshire (VC49), Cambridgeshire (VC29), Carmarthenshire (VC44), Cheshire (VC58), Cumberland (VC70), Denbighshire (VC50), Derbyshire (VC57), East Cornwall (VC2), East Gloucestershire (VC33), East Kent (VC15), East Norfolk (VC27), East Ross (VC106), East Suffolk (VC25), East Sussex (VC14), East Sutherland (VC107), Easterness (VC96), Edinburgh, Elgin, Flintshire (VC51), Glamorganshire (VC41), Herefordshire (VC36), Hertfordshire (VC20), Kincardineshire (VC91), Leicestershire (VC55), Linlithgow, Mid-west Yorkshire (VC64), Middlesex (VC21), Monmouthshire (VC35), North Aberdeenshire (VC93), North Devon (VC4), North Essex (VC19), North Hampshire (VC12), North Somerset (VC6), North Wiltshire (VC7), North-east Yorkshire (VC62), North-west Yorkshire (VC65), Northamptonshire (VC32), Nottinghamshire (VC56), Pembrokeshire (VC45), Shropshire (VC40), South Aberdeenshire (VC92), South Devon (VC3), South Essex (VC18), South Hampshire (VC11), South Lancaster and South Wiltshire (NBN Gateway).

See also British leafminers distribution map.

Also recorded the Republic of Ireland and Northern Ireland (Karsholt and van Nieukerken in Fauna Europaea) See also Ireland's NBDC interactive map.

NBN Grid Map:

NBN Grid Map

Mompha raschkiella
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, Belarus, Belgium, Czech Republic, Danish mainland, Estonia, Finland, French mainland, Germany, Hungary, Italian mainland, Latvia, Lithuania, Luxembourg, Norwegian mainland, Poland, Romania, Russia - Central, East, North and Northwest, Slovakia, Sweden, Switzerland, The Netherlands and Ukraine (Karsholt and van Nieukerken in Fauna Europaea).

NBN Interactive Grid Maps of known host species:

Chamerion angustifolium

British and Irish Parasitoids in Britain and elsewhere:

Chalcidoidea  
Cirrospilus vittatus Walker, 1838 Eulophidae: Eulophinae
Ichneumonoidea  
Coloneura stylata Förster, 1862 Braconidae: Alysiinae
Colastes braconius Haliday, 1833 Braconidae: Exothecinae
Rhysipolis decorator (Haliday, 1836) Braconidae: Rhysipolinae
Rhysipolis meditator (Haliday, 1836) Braconidae: Rhysipolinae
Campoplex raschkiellae Horstmann, 1980 Ichneumonidae: Campopleginae


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 22-Jul-2016  Brian Pitkin Top of page