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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Napomyza scrophulariae Spencer, 1966
[Diptera: Agromyzidae]

Napomyza scrophulariae Spencer, 1966b. Proc R. ent. Soc. Lond. (B) 35: 34
Napomyza scrophulariae Spencer, 1966b; Spencer, 1972b. Handbk ident. Br. Ins. 10(5g): 68, 120
Napomyza scrophulariae Spencer, 1966b; Spencer, 1976. Fauna ent. Scand. 5(1): 343-4, figs 626-7.

Seed and stem feeder : Feeding in both seed heads and stems (Spencer, 1976: 344).

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:

Digitalis purpurea Foxglove British Wild Flowers by John Somerville et al. Spencer, 1976: 344
Digitalis purpurea Foxglove British Wild Flowers by John Somerville et al. Spencer, 1972b: 120
? Mentha       Spencer, 1972b: 120
? Scrophularia nodosa Common Figwort British Wild Flowers by John Somerville et al. Spencer, 1972b: 120
? Verbascum       Spencer, 1972b: 120

Hosts elsewhere: Currently unknown.

Time of year - larvae: Currently unknown.

Time of year - adults: Currently unknown.

Distribution in Great Britain & Ireland: Widespread in Britain including London (Hampstead), Edinburgh (Edinburgh, Braid Hills), Ross and Cromarty (Skye) (Spencer, 1972b: 68); Carmarthenshire and Stafford (NBN Gateway).

Also recorded in the Republic of Ireland (Martinez in Fauna Europaea).

NBN Grid Map:

NBN Grid Map

Napomyza scrophulariae
NBN Grid Map : NBN Terms and Conditions

Maps are only displayed if the NBN server is active. N.B. Only publicly available records, if any, are shown by default

Distribution elsewhere: Widespread in continental Europe including Denmark, Norway, French mainland, Germany (Spencer, 1976: 344), Czech Republic, French mainland, Lithuania, Slovakia, Spanish mainland and Sweden (Martinez in Fauna Europaea).

Also recorded in the Near East (Martinez in Fauna Europaea).

NBN Interactive Grid Maps of known host species:

Digitalis purpurea, ? Scrophularia nodosa

British and Irish Parasitoids in Britain and elsewhere:

Chorebus didas (Nixon, 1944) Braconidae: Alysiinae

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