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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Cedestis gysseleniella Zeller, 1839
[Lepidoptera: Yponomeutidae]

Gold Pine Ermel


Cedestis gysseleniella Zeller, 1839.


Leaf-miner: A relatively large, ribbed, oval egg is deposited near the base of the needle, on the outer, convex, side. The emerging larva at first makes a wavy, epidermal, corridor, running in the direction of the needle tip. Soon the gallery becomes deeper and fills the entire needle. The larva works itself to close to the tip of the needle; the mine behind it is almost completely filled with frass. Pupation external; the exit opening is just under the tip, in the flat side of the needle Bladmineerders van Europa.

The larva feeds internally in a needle, working its way from the base to the tip. It may then feed externally in a slight web (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).

During the mining phase the larva is orange red, but on emergence is shiny green (British leafminers). The larva is illustrated in Bladmineerders van Europa.

Cedestis gysseleniella larva,  dorsal (from Trägårdh (1911a)
Cedestis gysseleniella larva, dorsal
Image: © from Trägårdh (1911a) (Bladmineerders van Europa)

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

Pupation in a white cocoon on the ground. The pupa is initially green, then darkens as it matures (British leafminers). The pupa is illustrated in Bladmineerders van Europa.

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:

Pinaceae        
Pinus       Pitkin & Plant
Pinus contorta Lodgepole Pine British Wild Flowers by John Somerville et al. British leafminers
Pinus sylvestris Scots Pine British Wild Flowers by John Somerville et al. British leafminers
Pinus sylvestris Scots Pine British Wild Flowers by John Somerville et al. UKMoths

Hosts elsewhere:

Pinaceae        
Pinus contorta Lodgepole Pine British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Pinus mugo Dwarf Mountain-pine   Bladmineerders van Europa
Pinus nigra Austrian Pine / Corsican Pine   Bladmineerders van Europa
Pinus sylvestris Scots Pine British Wild Flowers by John Somerville et al. Belgian Lepidoptera
Pinus sylvestris Scots Pine British Wild Flowers by John Somerville et al. Bladmineerders van Europa

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

Time of year - adults: The adults fly in June and July, when they can be attracted to light (UKMoths).

Distribution in Great Britain & Ireland: A widespread but local species occurring over much of England and Scotland in its favoured habitat, pine woodland (UKMoths), including Bedfordshire, Dorset, Durham, East Ross, East SUtherland, Easterness, Elgin, Hertfordshire, Kincardineshire, Linlithgow, Middlesex, North Hampshire, North Somerset, Northumberland South, Nottinghamshire, Kincardineshire, Linlithgow, Middlesex, North Hampshire, North Somerset, Northmberland South, Nottinghamshire, Shropshire, South Aberdeen, Stafford, Stirling, Surrey, West Lancaster, West Norfolk, West Perth, West Suffolk and Westmorland (NBN Atlas).

Distribution elsewhere: Widespread in continental Europe including Austria, Belarus, Belgium, Bulgaria, Czech Republic, Danish mainland, Estonia, Finland, Germany, Greek mainland, Hungary, Italian mainland, Latvia, Lithuania, Luxembourg, Norwegian mainland, Poland, Romania, Russia - Central, North and Northwest, Slovakia, Spanish mainland, Sweden, Switzerland, The Netherlands and Ukraine (Karsholt and van Nieukerken in Fauna Europaea).

NBN Atlas links to known host species:

Pinus contorta, Pinus mugo, Pinus nigra, Pinus sylvestris

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 Atlas
NHM UK Checklist
UKMoths

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Last updated 10-Nov-2017  Brian Pitkin Top of page