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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Melanagromyza symphyti Griffiths, 1963
[Diptera: Agromyzidae]


Melanagromyza symphyti Griffiths, 1963a. Entomologist's mon. Mag. 98: 155
Melanagromyza symphyti Griffiths, 1963a; Spencer, 1972b. Handbk ident. Br. Ins. X 5(g): 17, 19, 121
Melanagromyza symphyti Griffiths, 1963a; Spencer, 1990. Host specialization in the World Agromyzidae (Diptera) : 197 (fig. 743), 199, 200.


Stem-borer: Larva boring the stems or leaf-stalk. Pupation internal (Spencer, 1972b: 19).

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).

Shining reddish brown; posterior spiracular processes separated by their own diameter, each with an ellipse of some 30 minute bulbs around the small central horn (Spencer, 1972b: 19).

Hosts in Great Britain & Ireland:

Boraginaceae        
Symphytum officinale Common Comfrey British Wild Flowers by John Somerville et al. Spencer, 1972b: 121
Symphytum officinale Common Comfrey British Wild Flowers by John Somerville et al. Spencer, 1990: 199

Hosts elsewhere: Currently unknown.

Time of year - larvae: Currently unknown.

Time of year - adults: Currently unknown.

Distribution in Great Britain & Ireland: Local. Huntingdonshire (Woodwalton Fen) (Spencer, 1972b: 19); Cambridgeshire (NBN Atlas).

Distribution elsewhere: Belgium, Czech Republic and Lithuania (Martinez in Fauna Europaea).

NBN Atlas links to known host species:

Symphytum officinale

British and Irish Parasitoids in Britain and elsewhere:

Chalcidoidea   
Pachyneuron muscarum (Linnaeus, 1758) Pteromalidae: Pteromalinae
Stenomalina gracilis (Walker, 1834) Pteromalidae: Pteromalinae
Ichneumonoidea  
Chorebus cylindricus (Telenga, 1935) Braconidae: Alysiinae


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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