Leaf-mine: A conspicuous whitish linear mine. Pupation external.
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 larvae lie on their sides within the mine and use their pick-like mouthparts to feed on plant tissue.
The larva of Phytomyza pastinacae / spondylii 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).
The puparium of Phytomyza pastinacae / spondylii is illustrated in Bladmineerders van Europa.
Spencer (1972b: 79) treated
pastinacae Hendel as a junior synonym of spondylii Robineau-Desvoidy, although later he treated pastinacae as
a distinct species (Spencer,
1990: 175). Both are recorded on Pastinaca and Heracleum in Europe
and can only currently be distinguished by the male genitalia. All
British records of both species require confirmation.
records given in Bladmineerders van Europa include both Phytomyza pastinacae and Phytomyza
Hosts in Great Britain & Ireland:
of year - mines: May-October.
of year - adults: Currently unknown.
in Great Britain & Ireland: ? Warwickshire (Longford) (Robbins,
recorded in the Republic of Ireland (Martinez in Fauna Europaea).
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elsewhere: Europe (Spencer,
1990: 177) including Austria, Belgium, Czech Republic, French
mainland, Germany, Latvia, Lithuania, Poland, Portuguese mainland
and The Netherlands (Martinez in Fauna Europaea).
recorded in Canada (Alberta) and the U.S.A. (New Yorkshire) (Spencer,
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British and Irish Parasitoids in Britain and elsewhere: