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

Join us on Facebook

Elachista utonella Frey, 1856
[Lepidoptera: Elachistidae]

Bog Dwarf


Elachista utonella Frey, 1856. Tin. Pteroph. Schw.: 300
Biselachista utonella (Frey, 1856).


Leaf-miner: The mine begins somewhere halfway the blade as an upwards running corridor. After a while the direction reverses, and an elongate blotch develops occupying half the width of the leaf. Frass, light green at first, grey later, concentrated in the lowest part of the mine. 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).

Yellowish green to greyish; head black, prothoracic plate light brown (Bladmineerders van Europa).

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

Described by Patocka (1999a) and Patocka and Turcáni (2005a).

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:

Cyperaceae        
Carex       Pitkin & Plant
Carex acutiformis Lesser Pond-sedge British Wild Flowers by John Somerville et al. Bland

Hosts elsewhere:

Cyperaceae        
Carex acutiformis Lesser Pond-sedge British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Carex brizoides     Bladmineerders van Europa
Carex distans Distant Sedge British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Carex disticha Brown Sedge British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Carex echinata Star Sedge British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Carex elata Tufted-sedge British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Carex flacca Glaucous Sedge British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Carex hirta Hairy Sedge British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Carex muricata Large-fruited Prickly-sedge   Bladmineerders van Europa
Carex paniculata Greater Tussock-sedge British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Carex remota Remote Sedge British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Carex riparia Greater Pond-sedge British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Carex spicata Spiked Sedge British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Carex vesicaria Bladder-sedge British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Scirpus sylvaticus Wood Club-rush British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Juncaceae        
Juncus gerardii Saltmarsh Rush British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Poaceae        
Festuca       Bladmineerders van Europa

Time of year - larvae: Mines are found in United Kingdom from March - May, but possibly have two generations as in continental Europe (Bladmineerders van Europa).

Time of year - adults: Currently unknown.

Distribution in Great Britain & Ireland: Britain including Bedfordshire (VC30), Cambridgeshire (VC29), East Kent (VC15), East Norfolk (VC27), East Suffolk (VC25), North Hampshire (VC12), North Wiltshire (VC7), South Devon (VC3), South Wiltshire (VC8), Staffordshire (VC39), West Norfolk (VC28), West Suffolk (VC26) and Worcestershire (VC37) (NBN Gateway, as Biselachista utonella).

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

Elachista utonella, as Biselachista utonella
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, Danish mainland, Estonia, Finland, French mainland, Germany, Hungary, Italian mainland, Latvia, Lithuania, Norwegian mainland, Poland, Romania, Slovakia, Sweden, Switzerland and The Netherlands (Karsholt and van Nieukerken in Fauna Europaea).

NBN Interactive Grid Maps of known host species:

Carex acutiformis, Carex distans, Carex disticha, Carex echinata, Carex elata, Carex flacca, Carex hirta, Carex muricata, Carex paniculata, Carex remota, Carex riparia, Carex spicata, Carex vesicaria, Juncus gerardii, Scirpus sylvaticus

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, as Biselachista utonella
NHM UK Checklist, as Biselachista utonella
UKMoths

Find using Google
Find using Google Scholar
Find images using Google


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