Goureau, 1851. Annls. Soc. ent. Fr. (2) 9: 145
Phytomyza aprilina Goureau, 1851; Spencer, 1969c. Beitr.
Ent. 19 (1-2): 19
Phytomyza aprilina Goureau, 1851; Spencer, 1972b. Handbk
ident. Br. Ins. 10(5g): 97
Chromatomyia aprilina (Goureau, 1851); Griffiths, 1974.
Quaestiones ent. 10: 42.
Phytomyza aprilina Goureau, 1851; Spencer, 1976. Fauna
ent. Scand. 5(1): 378-80, figs 658-60.
Chromatomyia aprilina (Goureau, 1851); Spencer, 1990. Host
specialization in the world Agromyzidae (Diptera) : 238, 240,
241 (fig. 906).
Phytomyza aprilina Goureau, 1851; Winkler et al. 2009. Syst. ent. 34: 260-292.
very first part of the mine is a quite inconspicuous, lower-surface
epidermal corridor, that ends upon the midrib. Then the larva bores
in the midrib, from where it makes long upper-surface corridors.
Often the latest corridor that is made is much longer than the others,
and follows the leaf outline in a loose loop. Frass in long strings at the extreme side of the mine. Pupation in the mine, in a lower-surface
puparium chamber (Bladmineerders van Europa).
Initially on the mid-rib from which there may be several short narrow galleries into the leaf. In the main gallery there may be alternate lower surface and upper surface stretches. Frass in conspicuous long streaks (British
A winter form not associated with the midrib and with a mine that meanders thoughout the leaf probably represents this species. Frass in long strings at the extreme side of the mine. Pupation in the mine, in a lower-surface
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 (1934
and 1938), Griffiths (1974)
and 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).
Pale green, white when empty (Spencer, 1972b: 97). Anterior spiracles penetrate the epidermis (Bladmineerders van Europa).
Hosts in Great Britain & Ireland:
of year - mines: June-October.
of year - adults: Currently unknown.
in Great Britain & Ireland: Widespread, particularly in
west and north of Britain including Surrey (Chiddingfold), Devon
(Wonwell), Cornwall (Portleven), South Wales, Northumberland (Spencer, 1972b: 97), Rum (Bland, in Whiteley, 1994), Warwickshire (Coventry,
Keresley, Kingsbury and Tile Hill) (Robbins,
1991: 107), Hampshire (Fleet) (British
leafminers); East Ross (VC106), Edinburgh, Glamorganshire (VC41), Huntingdonshire (VC31),
Mid-west Yorkshire (VC64), Pembrokeshire (VC45), Shropshire (VC40), South-east Yorkshire (VC61),
Staffordshire (VC39), West Kent (VC16) and Worcestershire (VC37) (NBN
recorded in the Republic of Ireland: Co. Clare (Poulavallen), Co.
Cork (Bantry), Co. Down (Rostrevor), Co. Galway (Clifden) and Co.
Kerry (Killarney) (Spencer, 1972b: 97).
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elsewhere: Widespread in western and south western Europe, particularly
coastal areas, from England to Spain and Portugal, including Norway
(Spencer, 1976: 379), The
Netherlands, Luxembourg (Bladmineerders van Europa), Corsica, Czech Republic, French mainland, Germany
and Italian mainland (Martinez in Fauna Europaea).
recorded in Tangiers and Morocco (Spencer,
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British and Irish Parasitoids in Britain and elsewhere: