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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Pseudodineura mentiens (C. G. Thomson, 1871)

Blennocampa mentiens C. G. Thomson, 1871
Pseudodineura mentiens
(C. G. Thomson, 1871)

Leaf miner: A blotch mine is formed from the leaf edge. The larva feeds dorsal side towards the top of the leaf. This species is thought to have one generation each year (British leafminers).

Very transparant full depth blotch that starts at the leaf margin (there a clump of frass), that finally occupies a major part of the leaf. Pupation outside the mine (Bladmineerders van Europa).

Larva: The larvae of sawflies have a head capsule, chewing mouthparts with opposable mandibles, six thoracic legs and abdominal legs (although they may be reduced) (see examples).

Pale colour, with a darker head (British leafminers).

Pupa: The pupae of sawflies have visible head appendages, wings and legs which lie in sheaths.

Adults: Details unknown.

Hosts in Great Britain & Ireland:

Hepatica nobilis Common Hepatica   British leafminers
Hepatica transsilvanica     British leafminers

Hosts elsewhere: Currently unknown.

Time of year - larvae: May to September (British leafminers).

Time of year - adults: August (British leafminers).

Distribution in Great Britain & Ireland: Scotland (Edinburgh area) (British leafminers).

NBN Grid Map:

NBN Grid Map

Pseudodineura mentiens
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Distribution elsewhere: Austria, Czech Republic, Estonia, Finland, French mainland, Germany, Italian mainland, Romania, Sweden (van Achterberg in Fauna Europaea).

NBN Interactive Grid Maps of known host species:

Hepatica nobilis

British and Irish Parasitoids in Britain and elsewhere: Unknown.

External links: Search the internet:
Biodiversity Heritage Library
British leafminers
Bladmineerders van Europa
Encyclopedia of Life
Fauna Europaea
NBN Gateway
NHM UK Checklist
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Last updated 14-May-2016  Brian Pitkin Top of page