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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Delia quadripila (Stein, 1916)
[Diptera: Anthomyiidae]


Chortophila quadripila Stein, 1916. Arch. Naturgesch. 81A(10)(1915): 175.
Delia quadripila (Stein, 1916).


Leaf- and stem-miner: Mine predominantly in the leaves. The beginning of the mine is a full depth corridor lying on the leaf margin, with or without large, black frass grains. The larva goes through the stem, mines leaf after leaf, hollowing these out (Hering, 1957).

The larva mines a number of leaves, and bores in the stem segments inbetween. Frass, as far as visible, in large black lumps. Pupation outside the mine (Bladmineerders van Europa).

Larva: The larvae of flies are leg-less maggots without a head capsule (see examples). They never have thoracic or abdominal legs. They do not have chewing mouthparts, although they do have a characteristic cephalo-pharyngeal skeleton (see examples), usually visible internally through the body wall.

Puparium: The puparia of flies are formed within the hardened last larval skin or puparium and as a result sheaths enclosing head appendages, wings and legs are not visible externally (see examples).

Comments: Ackland in Chandler (1978) did not indicate whether his host record was British or Foreign and is therefore included under 'Hosts in Britain' and 'Hosts elsewhere'.

Hosts in Great Britain & Ireland:

Caryophyllaceae        

? Honckenya

peploides Sea Sandwort British Wild Flowers by John Somerville et al. Ackland in Chandler, 1978: 227

Hosts elsewhere:

Caryophyllaceae        
Minuartia       Hering, 1957

? Honckenya

peploides Sea Sandwort British Wild Flowers by John Somerville et al. Ackland in Chandler, 1978: 227
Honckenya peploides Sea Sandwort British Wild Flowers by John Somerville et al. Hering, 1957
Honckenya peploides Sea Sandwort British Wild Flowers by John Somerville et al. Bladmineerders van Europa

Time of year - mines: July (Hering, 1957).

Time of year - adults: Currently unknown.

Distribution in Great Britain & Ireland: Recorded in Britain by Ackland (1978) including Anglesey, Ayrshire, East Ross, East Suffolk, East Sutherland, Easterness, Elgin, Glamorgan and West Norfolk (NBN Atlas).

Distribution elsewhere: Widespread in continental Europe including Germany (Teschner, 1999), Denmark, Norwegian mainland, Poland and Russia - North (Michelsen in Fauna Europaea).

NBN Atlas links to known host species:

Honckenya peploides

British and Irish Parasitoids in Britain and elsewhere:

Ichneumonoidea  
Alysia truncator (Nees, 1812) Braconidae: Alysiinae
Opius brevipalpis Thomson, 1895 (as Biosteres) Braconidae: Opiinae


External links: Search the internet:
Biodiversity Heritage Library
Bladmineerders van Europa
British leafminers
Encyclopedia of Life
Fauna Europaea
NBN Atlas
NHM UK Checklist
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