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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Ectoedemia atricollis (Stainton, 1857)
[Lepidoptera: Nepticulidae]

Pinch-barred Pigmy


Nepticula atricollis Stainton, 1857. Entom. Ann.: 112.
Nepticula
staphyleae Zimmermann, 1944. Z. wien. ent. Ges. 29: 117
Ectoedemia atricollis (Stainton, 1857).


Leaf-miner: The larvae form galleries along the edge of the leaf, leading to the development of large blotches on the leaf margin (UKMoths).

Oviposition on the leaf underside. There begins a full depth corridor that gradually widens into an irregular elliptic blotch. Generally the corridor part for a large stretch follows the leaf margin. If oviposition occurred well away from the leaf margin, the corridor starts by making some irregular loops around the oviposition site; however, when, as often occurs, the egg is placed close to the leaf margin, at once the leaf margin is mined. Frass blackish brown (rarely brown) in the corridor, black in the blotch. In the corridor the frass lies in lumps or indistinct coils; in the blotch the frass is irregularly dispersed. Pupation outside the mine; exit slit in the upper epidermis, contrary to Bohemannia pulverosella, with which atricollis may co-occur on Apple (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).

Larva whitish, head and ventral spots dark (this distinguishes it from Stigmella hybnerella, which has a pale head) (British leafminers). The larva is greenish white and lies belly-up in the mine. The head is blackish brown (contrary to the pale brown head of Stigmella hybnerella, of which the mines sometimes resemble those of atricollis). Young larvae, in their 2nd and 3rd instar, with a chain of black ventral plates (van Nieukerken, 1985a). 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 genitalia are not illustrated by the Lepidoptera Dissection Group (check for update).

Hosts in Great Britain & Ireland:

Rosaceae        
Crataegus       British leafminers
Crataegus       Pitkin & Plant
Malus       British leafminers
Malus       Pitkin & Plant
Prunus avium Wild Cherry British Wild Flowers by John Somerville et al. Pitkin & Plant
Pyrus       Pitkin & Plant
Pyrus communis Pear Pitkin & Plant

Hosts elsewhere:

Rosaceae        
Crataegus laevigata Midland Hawthorn British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Crataegus monogyna Hawthorn British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Malus pumila Apple British Wild Flowers by John Somerville et al.

Bladmineerders van Europa, as Malus domestica

Malus sylvestris Crab Apple British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Mespilus germanica Medlar British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Prunus avium Wild Cherry British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Prunus cerasifera Cherry Plum British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Prunus domestica subsp. insititia Bullace  

Bladmineerders van Europa, as Prunus institia

Prunus mahaleb St Lucie Cherry British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Pyrus communis Pear Bladmineerders van Europa
Staphylaceae        
Staphylea pinnata Bladdernut British Wild Flowers by John Somerville et al. Bladmineerders van Europa

Time of year - larvae: August - April (British leafminers).

Time of year - adults: The adult moths emerge in a single generation in June (UKMoths).

Distribution in Great Britain & Ireland: Widespread throughout England and Wales (UKMoths) including Bedfordshire (VC30), Buckinghamshire (VC24), Caernarvonshire (VC49), Cambridgeshire (VC29), Cheshire (VC58), Derbyshire (VC57), East Gloucestershire (VC33), East Kent (VC15), East Norfolk (VC27), East Suffolk (VC25), Flintshire (VC51), Glamorganshire (VC41), Herefordshire (VC36), Hertfordshire (VC20), Huntingdonshire (VC31), Kincardineshire (VC91), Leicestershire (VC55), Mid-west Yorkshire (VC64), Middlesex (VC21), Monmouthshire (VC35), North Devon (VC4), North Essex (VC19), North Hampshire (VC12), North Somerset (VC6), North Wiltshire (VC7), Northamptonshire (VC32), Shropshire (VC40), South Hampshire (VC11), South Lancashire (VC59), South Wiltshire (VC8), Staffordshire (VC39), Surrey (VC17), Warwickshire (VC38), West Gloucestershire (VC34), West Kent (VC16), West Norfolk (VC28), West Suffolk (VC26) and Worcestershire (VC37) (NBN Gateway).

See also British leafminers distribution map.

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

NBN Grid Map:

NBN Grid Map

Ectoedemia atricollis
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, Bosnia and Herzegovina, Corsica, Croatia, Czech Republic, Danish mainland, Estonia, French mainland, Germany, Hungary, Italian mainland, Latvia, Republic of Moldova, Norwegian mainland, Poland, Romania, Russia - Central, Slovakia, Slovenia, Sweden, Switzerland, The Netherlands, Ukraine and Yugoslavia. Also recorded in the East Palaearctic (Karsholt and van Nieukerken in Fauna Europaea).

NBN Interactive Grid Maps of known host species:

Crataegus laevigata, Crataegus monogyna, Malus pumila, Malus sylvestris, Mespilus germanica, Prunus avium, Prunus cerasifera, Prunus doemstica subsp. insititia, Prunus mahaleb, Pyrus communis, Staphylea pinnata

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 20-Jul-2016  Brian Pitkin Top of page