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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Chirosia nigripes Bezzi, 1895
[Diptera: Anthomyiidae]

Chirosia nigripes Bezzi, 1895. Bull. Soc. ent. ital. 27 (1): 63
Chirosia albifrons Tiensu, 1938. Annls ent. fenn. 4: 22.


Leaf-mine: Ovipisition on the upper part of the rachis of an unrolling leaf. The larva bores into the rachis, causing the distal part of the leaf to become stunted and finally necrotic. Often several larvae in a mine. Pupation outside the mine (Brown and McGavin, 1982a).

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).

Hosts in Great Britain & Ireland: Currently unknown.

Hosts elsewhere:

Dennstaedtiaceae        
Pteridium aquilinum Bracken Bracken - Pteridium aquilinum Bladmineerders van Europa

Time of year - mines: Larvae from spring to end June; hibernation as puparium in the ground (Brown and McGavin, 1982a).

Time of year - adults: Currently unknown.

Distribution in Great Britain & Ireland: Widespread in Britain including Huntingdonshire, Hampshire, Oxfordshire, Somerset, Norfolk, Glamorgan, Suffolk, Ross and Cromarty, Elgin (Mike Ackland, pers. comm.); Dorset, Glamorgan, Isle of Wight, Middlesex, Oxfordshire, South-west Yorkshire and Stafford (NBN Atlas).

Distribution elsewhere: Finland, Germany, Italian mainland, Russia - North and Sweden (Michelsen in Fauna Europaea).

NBN Atlas links to known host species:

Pteridium aquilinum

British and Irish Parasitoids in Britain and elsewhere: Currently unknown.



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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