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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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:

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:

Pachyneuron muscarum (Linnaeus, 1758) Pteromalidae: Pteromalinae
Stenomalina gracilis (Walker, 1834) Pteromalidae: Pteromalinae
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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