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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Phyllocnistis xenia M. Hering, 1936
[Lepidoptera: Gracillariidae]

Kent Bent-wing


Phyllocnistis xenia M. Hering, 1936. EOS, Madrid. 11: 369.


Leaf-miner: A 'snail-trail'-like mine on the upper surface, long and sinuous, with a dark central frass trail, ending at the leaf margin (British leafminers).

Very long, rather broad, strictly epidermal, corridor that curves in dense loops over the leaf upperside, without ever crossing itself. Frass in a vague continuous central line. The gallery ends upon the leaf margin, where it widens a little, while the leaf margin folds over somewhat. Here pupation takes place, not in a cocoon (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).

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

Under a silk membrane on the margin of leaf (British leafminers). The pupa is illustrated in Bladmineerders van Europa.

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

Hosts in Great Britain & Ireland:

Salicaceae        
Populus alba White Poplar British Wild Flowers by John Somerville et al. British leafminers
Populus x canescens Grey Poplar British Wild Flowers by John Somerville et al. British leafminers
Populus x canescens Grey Poplar British Wild Flowers by John Somerville et al. Pitkin & Plant

Hosts elsewhere:

Salicaceae        
Populus alba White Poplar British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Populus x canescens Grey Poplar British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Populus tremula Aspen British Wild Flowers by John Somerville et al. Bladmineerders van Europa

Time of year - larvae: June-July, August-September.

Time of year - adults: Currently unknown.

Distribution in Great Britain & Ireland: Britain including East Kent (VC15), East Suffolk (VC25), Hertfordshire (VC20), Middlesex (VC21), North Essex and South Devon (NBN Gateway).

See also British leafminers distribution map.

NBN Grid Map:

NBN Grid Map

Phyllocnistis xenia
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, French mainland, Germany, ? Hungary, Italian mainland, Poland, ? Portuguese mainland, Romania, Slovakia, Spanish mainland, Switzerland and The Netherlands. Also recorded in Near East (Karsholt and van Nieukerken in Fauna Europaea).

NBN Interactive Grid Maps of known host species:

Populus alba, Populus x canescens, Populus tremula

British and Irish Parasitoids in Britain and elsewhere:

Chalcidoidea  
Chrysocharis nephereus (Walker, 1839) Eulophidae: Entedoninae


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 13-Sep-2016  Brian Pitkin Top of page