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

N.B. Links to the latest version of 'Leafminers and plant galls of Europe' are being edited

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Phytomyza krygeri Hering, 1949
[Diptera: Agromyzidae]


Phytomyza krygeri Hering, 1949d. Notul. ent. 29: 27
Phytomyza krygeri Hering, 1949d; Spencer, 1972b. Handbk ident. Br. Ins. 10(5g): 82, 118
Phytomyza krygeri Hering, 1949d; Spencer, 1976. Fauna ent. Scand. 5(1): 437-8, figs 763-4.
Phytomyza krygeri Hering, 1949d; Spencer, 1990. Host specialization in the World Agromyzidae (Diptera) : 22, 43, 48 (figs 181-2).


Seed-feeder: Larvae feeding in seed-capsules and pupating in the seed heads (Spencer, 1990: 43).

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.

The larva is described by Dempewolf (2001: 191).

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).

Brown, deeply segmented; posterior spiracles strongly chitinised, each with an ellipse of some 25 bulbs; all segments have a band of short spinules which are particularly strong in the anal region (Spencer, 1976: 438).

Hosts in Great Britain & Ireland:

Ranunculaceae        
Aquilegia vulgaris Columbine British Wild Flowers by John Somerville et al. Spencer, 1972b: 118

Hosts elsewhere:

Ranunculaceae        
Aquilegia       Spencer, 1990: 43
Aquilegia vulgaris Columbine British Wild Flowers by John Somerville et al. Spencer, 1976: 438
Aquilegia vulgaris Columbine British Wild Flowers by John Somerville et al. Dempewolf, 2001: 191

Time of year - larvae: Currently unknown.

Time of year - adults: Currently unknown.

Distribution in Great Britain & Ireland: Oxford (Oxford) and Monmouthshire (St. Pierre) (Spencer, 1972b: 82); East Ross, Monmouthshire and Surrey (NBN Atlas).

Distribution elsewhere: Widespread in continental Europe including Denmark, Finland, Sweden (Spencer, 1976: 438), Germany (Dempewolf, 2001: 191), Czech Republic, Norwegian mainland, Poland and The Netherlands (Martinez in Fauna Europaea).

NBN Atlas links to known host species:

Aquilegia vulgaris

British and Irish Parasitoids in Britain and elsewhere:

Chalcidoidea   
Chrysocharis orbicularis (Nees, 1834) Eulophidae: Entedoninae
Seladerma sabbas (Walker, 1848) Pteromalidae: Miscogastrinae
Seladerma simplex (Thomson, 1876) Pteromalidae: Miscogastrinae
   


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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