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


Agromyza pseudorufipes Nowakowski, 1964
[Diptera: Agromyzidae]

Agromyza pseudorufipes Nowakowski, 1964. Dt. ent. Z. (N.F.) 11: 205 (183 in key)
Agromyza pseudorufipes Nowakowski, 1964; Spencer, 1972b. Handbk ident. Br. Ins. 10(5g): 35, 109
Agromyza pseudorufipes Nowakowski, 1964; Spencer, 1990. Host specialization in the world Agromyzidae (Diptera) : 198, 199.

Leaf-miner: A large blotch, larva frequently entering a second leaf to complete development (Spencer, 1972b: 35).

Single larva. Primary and secondary feeding lines indistinct. Frass in short thread fragments. Pupation outside the mine; exit slit upper-surface (Bladmineerders van Europa).

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 Nowakowski (1964).

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).

Comments: Possibly a junior synonym of Agromyza canadensis Malloch, 1913.

Hosts in Great Britain and Ireland:

Myosotis       Robbins, 1991: 97
Myosotis       Spencer, 1972b: 109
Myosotis arvensis Field Forget-me-not British Wild Flowers by John Somerville et al. Robbins, 1989: 20
Myosotis sylvatica Wood Forget-me-not British Wild Flowers by John Somerville et al. Robbins, 1989: 20

Hosts elsewhere:

Myosotis       Spencer, 1990: 199
Myosotis palustris Common Water Forget-Me-Not   Bladmineerders van Europa
Myosotis sylvatica Wood Forget-me-not British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Podonosma       Spencer, 1990: 199
Trigonotis       Spencer, 1990: 199

Time of year - mines: Currently unknown.

Time of year - adults: August.

Distribution in Great Britain and Ireland: Surrey (Bookham), Yorkshire (Harrogate and Ingleborough), Radnor (Llangammarch) (Spencer, 1972b: 35) and Warwickshire (Brinklow and Piles Coppice) (Robbins, 1991: 97).

Distribution elsewhere: Widespread in continental Europe including Austria, Belgium, Czech Republic, Germany, Lithuania, Poland, Romania and Slovakia (Fauna Europaea).

Also recorded in Japan (Spencer, 1990).

NBN Atlas links to known host species:

Myosotis arvensis, Myosotis scorpioides, Myosotis sylvatica

British and Irish Parasitoids in Britain and elsewhere:

Chrysocharis orbicularis (Nees, 1834) Eulophidae: Entedoninae
Ichneumonoidea - Links to species no longer available  
Chorebus deione (Nixon, 1944) Braconidae: Alysiinae
Opius singularis Wesmael, 1835 Braconidae: Opiinae

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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