|
||||||
| Chromatomyia
aprilina (Goureau, 1851) [Diptera: Agromyzidae] |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
Phytomyza
aprilina
Goureau, 1851. Annls. Soc. ent. Fr. (2) 9: 145 |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Leaf-miner: The 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 leafminers). 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 puparium chamber 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 and Ireland:
Hosts elsewhere:
Time of year - mines: June-October. Time of year - adults: Currently unknown. Distribution in Great Britain and Ireland: Widespread, particularly in west and north of Britain including Surrey (Chiddingfold), Devon (Wonwell), Cornwall (Portleven), South Wales and Northumberland (Spencer, 1972b: 97), Rum (Bland, in Whiteley, 1994), Warwickshire (Coventry, Keresley, Kingsbury and Tile Hill) (Robbins, 1991: 107), Hampshire (Fleet) (British leafminers); Anglesey, Buckinghamshire, Caernarvonshire, Carmarthenshire, Cumberland, Dunbartonshire, East Gloucestershire, East Ross, East Suffolk, East Sutherland, Easterness, Edinburgh, Glamorgan, Hertfordshire, Huntingdonshire, Leicestershire, Main Argyll, Merionethshire, Mid Perthshire, Mid-west Yorkshire, Monmouthshire, North Wiltshire, Pembrokeshire, Shropshire, South Lancashire, South-east Yorkshire, South-west Yorkshire, West Lancashire, West Ross and Westmorland (NBN Atlas). Also 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). Distribution 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 (Fauna Europaea). Also recorded in Tangiers and Morocco (Spencer, 1990). NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere:
|
| Last updated 09-Jul-2019 Brian Pitkin |  |
|