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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Liriomyza richteri Hering, 1927
[Diptera: Agromyzidae]


Liriomyza richteri Hering, 1927b. Dt. ent. Z. 1927(2): 157
Liriomyza pedestris Hendel, 1931. Fliegen palaearkt. Reg. 6(2): 243 [Synonymised by von Tschirnhaus, 1980]
Liriomyza pedestris Hendel, 1931; Spencer, 1972b. Handbk ident. Br. Ins. 10(5g): 49 (figs 153A-154), 52, 123.
Liriomyza pedestris Hendel, 1931; Spencer, 1976. Fauna ent. Scand. 5(1): 260, figs 460-462.
Liriomyza richteri Hering, 1927b; Spencer, 1976. Fauna ent. Scand. 5(1): 268-9, figs 477-8
Liriomyza richteri Hering, 1927b; Spencer, 1990. Host specialization in the World Agromyzidae (Diptera) : 268-9
Liriomyza pedestris Hendel, 1931; Spencer, 1990. Host specialization in the World Agromyzidae (Diptera) : 354, 373, 374 (fig. 1406).


Leaf-mine: Details unknown.

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).

Reddish; posterior spiracles each with 3 bulbs (Spencer, 1976: 260, as pedestris).

Comments: Spencer (1976) treated pedestris (p. 260) on Deschampsia flexuosa and richteri (p. 268-9) on grasses as distinct species. Subsequently von Tschirnhaus (1980) synonymised the two species.

Hosts in Great Britain & Ireland:

Poaceae        
Deschampsia flexuosa Wavy Hair-grass British Wild Flowers by John Somerville et al. Spencer, 1972b: 123, as pedestris

Hosts elsewhere:

Poaceae        
Deschampsia flexuosa Wavy Hair-grass British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Deschampsia flexuosa Wavy Hair-grass British Wild Flowers by John Somerville et al. Spencer, 1976: 260, as pedestris

Time of year - mines: Currently unknown.

Time of year - adults: Currently unknown.

Distribution in Great Britain & Ireland: Uncommon. Devon (Dartmoor), Dorset (Portland) and Oxfordshire (Oxford) (Spencer, 1972b: 52); Breconshire, Cambridgeshire, Cardiganshire, Carmarthenshire, East Kent, Glamorgan, Nottinghamshire, Pembrokeshire, South-west Yorkshire and West Sussex (NBN Atlas).

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

Distribution elsewhere: Widespread throughout much of Europe including Denmark, Finland, Norway, Sweden, N. Russia and Iceland (Spencer, 1976: 260, as pedestris; Spencer, 1976: 268-9, as richteri), Austria, Czech Republic, Estonia, French mainland, Germany, Hungary, Italian mainland, Poland and The Netherlands (Martinez in Fauna Europaea).

Also common in the Mediterranean area and North Africa (Spencer, 1976: 260, as pedestris; Spencer, 1976: 268-9, as richteri).

NBN Atlas links to known host species:

Deschampsia flexuosa

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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