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


Cerodontha atronitens (Hendel, 1920)
[Diptera: Agromyzidae]

Haplomyza atronitens Hendel, 1920. Arch. Naturgesch. 84A(7) (1918): 145
Cerodontha (Xenophytomyza) biseta Frey, 1946. Notul. ent. 26: 47
Cerodontha (Xenophytomyza) biseta Frey, 1946; Nowakowski, 1972. Polskie Pismo ent. 42(4): 740
Cerodontha (Xenophytomyza) atronitens (Hendel, 1920); Spencer, 1972b. Handbk ident. Br. Ins. 10(5g): 106
Cerodontha (Xenophytomyza) atronitens Spencer, 1976. Fauna ent. Scand. 5(1): 181. figs 321-2.
Cerodontha (Xenophytomyza) atronitens (Hendel, 1920); Spencer, 1990. Host specialization in the world Agromyzidae (Diptera) : 366 (fig. 1375), 367.

Leaf-mine: Larva and puparium in the leaf sheath; otherwise undescribed (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).

Hosts in Great Britain and Ireland: Currently unknown, but certainly Poaceae [as Gramineae] (Spencer, 1972b: 106).

Hosts elsewhere:

Poa nemoralis Wood Meadow-grass   Bladmineerders van Europa
Poa nemoralis Wood Meadow-grass   Scheirs, de Bruyn and von Tschirnhaus, 1995

Time of year - mines: June-July (Scheirs, de Bruyn and von Tschirnhaus, 1995).

Time of year - adults: July.

Distribution in Great Britain and Ireland: Widespread in Britain including Denbighshire (Cefn-y-bedd) (Spencer, 1972b); Cambridgeshire, East Kent, Easterness, Glamorgan, Isle of Wight, Monmouthshire, South-west Yorkshire, Stafford and West Norfolk (NBN Atlas).

Also recorded in the Republic of Ireland: Co. Clare (Spencer, 1972b: 106).

Distribution elsewhere: Widespread in much of Europe including Denmark, Finland, Sweden (Spencer, 1976: 181), The Netherlands (Bladmineerders van Europa), Belgium (Scheirs, de Bruyn and von Tschirnhaus, 1995), Germany (Spencer, 1976: 550), Austria, Czech Republic, Estonia, French mainland, Lithuania, Poland and Slovakia (Fauna Europaea).

NBN Atlas links to known host species:

Poa nemoralis

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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