Agromyza
angulata Loew, 1869a. Berl. ent. Z. 13(1-2):
47
Dizygomyza semiposticata Hendel, 1920. Arch. Naturgesch.
84A(7) (1918): 131
Dizygomyza semiposticata Hendel, 1920; Frick, 1957. Ann.
ent. Soc. Am. 50: 202
Cerodontha (Butomyza) semiposticata Hendel, 1920; Nowakowski,
1967. Polskie Pismo ent. 37: 634
Cerodontha (Dizygomyza) angulata (Loew, 1869a); Spencer
1969a. Memoirs of the entomological Society of Canada 64:
113-4
Cerodontha (Butomyza) angulata (Loew, 1869a); Nowakowski,
1972. Polskie Pismo ent. 42(4): 752
Cerodontha (Dizygomyza) angulata (Loew, 1869a); Spencer
1972b. Handbk. ident. Br. Ins.: 96 (figs 331-2), 100
Cerodontha (Butomyza) angulata (Loew, 1869a); Spencer,
1976. Fauna ent. Scand. 5(1): 204-5, figs 354-6.
Cerodontha (Butomyza) angulata (Loew, 1869a);
Spencer, 1990. Host specialization in the world Agromyzidae
(Diptera) : 347, 348 (fig. 1317), 351, 371, 380.
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Leaf-miner: A
long yellowish green leaf-mine. Pupation external, puparium frequently
adhering to leaf (Spencer, 1972b:
100; Spencer, 1976: 205).
Long,
rather broad corridor, about halfway along the leaf blade. Frass
in a few large, black lumps. Puparium formed now in, then 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 de Meijere (1926,
as semiposticata), Nowakowski (1973)
and Dempewolf (2001: 113).
The larva is illustrated in Bladmineerders van Europa.
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).
Oval, dark brown, without conspicuous segmentation, frequently adhering
to leaf (Spencer, 1972b:
96 (fig. 331), 100; Spencer,
1976: 205, figs 355-6). Yellow to black-brown (Bladmineerders van Europa).
Comments:
Carex ovalis is treated
as Carex leporina (Oval
Sedge) by Stace (2010).
Hosts in Great Britain and Ireland:
Hosts
elsewhere:
Time
of year - mines: September, November.
Time
of year - adults: Currently unknown.
Distribution
in Great Britain and Ireland: Widespread in the southern Britain
including London (Hampstead), Middlesex (Scratch Wood), Dorset (Lyme
Regis), Glam. (Spencer, 1972b:
100), Warwickshire (Coventry) (Robbins,
1991: 133) and Cardiganshire, East Sutherland, Leicestershire and Surrey (NBN
Atlas).
Also
recorded in the Republic of Ireland (Fauna Europaea). Distribution
elsewhere: Widespread in continental Europe including Denmark,
Sweden, Norway (Spencer, 1976:
205), The Netherlands, Luxembourg (Bladmineerders van Europa), Belgium (Scheirs,
de Bruyn and von Tschirnhaus, 1995), Germany (Spencer,
1976: 554; Dempewolf, 2001:
113), Austria, Czech Republic, Estonia, European Turkey, French
mainland, Hungary, Italian mainland, Lithuania, Poland, Romania
and Slovakia (Fauna Europaea).
Also
recorded in Canada and the U.S.A. (Spencer,
1976: 205).
NBN Atlas links to known host species:
Carex
acuta, Carex
acutiformis, Carex
flacca, Carex
flava, Carex
hirta, Carex
otrubae, Carex
ovalis, (= Carex
leporina), Carex
paniculata, Carex
pendula, Carex
pseudocyperus, Carex
remota, Carex
riparia, Carex
sylvatica, Carex
vesicaria, Carex
vulpina, Scirpus
sylvaticus |
British and Irish Parasitoids in Britain and elsewhere:
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