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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Agromyza bromi Spencer, 1966
[Diptera: Agromyzidae]

Agromyza bromi Spencer, 1966c. Beitr. Ent. 16(3-4): 286
Agromyza bromi Spencer, 1966c; Spencer, 1972b. Handbk ident. Br. Ins. 10(5g): 31, 32 (fig. 81), 33
Agromyza bromi Spencer, 1966c; Spencer, 1976. Fauna ent. Scand. 5(1): 101-2, figs 151-3
Agromyza bromi Spencer, 1966c; Spencer, 1990. Host specialization in the world Agromyzidae (Diptera) : 355, 358 (figs 1337-8), 359.


Leaf-mine: Details of mine and larva unknown. Because the adult fly closely resembles that of A. nigrella, possibly this applies as well to mine and larvae (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.

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).

Dark brown; posterior spiracles widely separated, each with 3 bulbs. (Spencer, 1976: 102).

Rear spiracula not on a common base, with 3 bulbs (Spencer, 1966a) (Bladmineerders van Europa).

Hosts in Great Britain & Ireland:

Poaceae        
Bromopsis ramosa Hairy brome British Wild Flowers by John Somerville et al. Robbins, 1991: 135
Ceratochloa unioloides     Pitkin & Plant

Hosts elsewhere:

Poaceae        
Bromus       Spencer, 1990: 355
Bromus catharticus     Bladmineerders van Europa
Bromus catharticus     Spencer, 1976: 102
Bromus catharticus     Spencer, 1972b: 33
Bromopsis ramosa Hairy brome British Wild Flowers by John Somerville et al. Bladmineerders van Europa

Time of year - mines: Currently unknown.

Time of year - adults: June-July.

Distribution in Great Britain & Ireland: Kent (Dartford), Suffolk (Felixstowe and Newmarket) (Spencer, 1972b: 33), Warwickshire (Sowe Common) (Robbins, 1991: 135) and Cambridgeshire, South-2west Yorkshire and West Gloucestershire (NBN Atlas).

Distribution elsewhere: Widespread in continental Europe including Denmark (Spencer, 1976: 102), The Netherlands, Belgium (Bladmineerders van Europa), Germany (Spencer, 1976: 546), Czech Republic, French mainland, Hungary, Lithuania, Poland, Slovakia and Switzerland (Martinez in Fauna Europaea).

NBN Atlas links to known host species:

Bromus catharticus, Bromopsis ramosa

British and Irish Parasitoids in Britain and elsewhere: Currently unknown.



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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