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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Cerodontha calamagrostidis Nowakowski, 1967
[Diptera: Agromyzidae]


Cerodontha (Poemyza) calamagrostidis Nowakowski, 1967. Polskie Pismo ent. 37(4): 648
Poemyza spenceri Nowakowski, 1967. Polskie Pismo ent. 37(4): 648. [Synonymised by Zlobin, 1985]
Poemyza tschirnhausi Nowakowski, 1972. Polskie Pismo ent. 42(4): 744. [Synonymised by Zlobin, 1985]
Cerodontha (Poemyza) calamagrostidis Nowakowski, 1967; Spencer, 1990. Host specialization in the world Agromyzidae (Diptera) : 354, 367, 368 (fig. 1377).


Leaf-mine: Lower-surface corridor; larva solitary. Pupation mostly outside the mine (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 Dempewolf (2001: 122).

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:

Poaceae        
Calamagrostis       Pitkin & Plant

Hosts elsewhere:

Poaceae        
Alopecurus       Nowakowski, 1973
Alopecurus       Spencer, 1990: 354
Alopecurus pratensis Meadow Foxtail British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Calamagrostis       Nowakowski, 1973
Calamagrostis       Spencer, 1990: 354
Calamagrostis canescens Purple Small-reed   Bladmineerders van Europa
Calamagrostis epigejos Wood Small-reed British Wild Flowers by John Somerville et al. Bladmineerders van Europa

Time of year - larvae: June-August, rarely September (Bladmineerders van Europa).

Time of year - adults: Currently unknown.

Distribution in Great Britain & Ireland: Cambridgeshire (NBN Atlas).

Distribution elsewhere: Widespread in continental Europe including Germany (Bladmineerders van Europa), Austria, Czech Republic, Estonia, Finland, French mainland, Hungary, Lithuania, Poland, Slovakia and Sweden (Martinez in Fauna Europaea).

Also recorded in Canada (Spencer, 1969a: 128).

NBN Atlas links to known host species:

Alopecurus pratensis, Calamagrostis canescens

British and Irish Parasitoids in Britain and elsewhere:

Ichneumonoidea  
Chorebus difficilis Griffiths, 1968 Braconidae: Alysiinae
Chorebus ninella (Nixon, 1945) Braconidae: Alysiinae
Dacnusa maculipes Thomson, 1895 Braconidae: Alysiinae


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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