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


Phytomyza evanescens Hendel, 1920
[Diptera: Agromyzidae]

Phytomyza evanescens Hendel, 1920. Arch. Naturgesch. 84A(7) (1918): 167
Phytomyza evanescens Hendel, 1920; Hendel, 1935. Fliegen palaearkt. Reg. 6(2): 397
Phytomyza parallela Hendel, 1935. Fliegen palaearkt. Reg. 6(2): 449
Phytomyza evanescens Hendel, 1920; Griffiths, 1964. Ent. Meddr. 32: 402
Phytomyza evanescens Hendel, 1920; Spencer, 1972b. Handbk ident. Br. Ins. 10(5g): 91 (figs 307-8), 92, 119
Napomyza evanescens (Hendel, 1920); Spencer, 1976. Fauna ent. Scand. 5(1): 333-4, figs 601-3.
Napomyza evanescens (Hendel, 1920); Spencer, 1990. Host specialization in the World Agromyzidae (Diptera) :Handbk ident. Br. Ins. 10(5g) 21, 38, 39 (fig. 128), 50, 402
Phytomyza evanescens Hendel, 1920; Zlobin, 1994. Dipterological Research 5: PAGE.

Stem-borer: Larva feeding as an internal stem-borer (Spencer, 1972b: 92).

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.

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).

Yellowish; posterior spiracles arising from a common base, each with an ellipse of some 20 bulbs (Spencer, 1976: 334, 335 (fig. 603).

Hosts in Great Britain and Ireland:

Ranunculus lanuginosus     Spencer, 1972b: 119

Hosts elsewhere:

Ranunculus       Spencer, 1976: 334
Ranunculus       Spencer, 1990: 21

Time of year - larvae: Currently unknown.

Time of year - adults: May-July.

Distribution in Great Britain and Ireland: Kent (Wrotham), Lincoln (Surfleet), Warwickshire (Rugby) (Robbins, 1991), Banff (Falls of Tarnash) (Spencer, 1972b: 92), Cambridgeshire, South-west Yorkshire and Stafford (NBN Atlas).

Distribution elsewhere: Widespread in continental Europe from Sicily to Faroe Is., including Denmark, Sweden, Finland (Spencer, 1976: 334), Germany (Spencer, 1976: 566), Austria, Belarus, Czech Republic, Estonia, French mainland, Iceland, Lithuania, Poland, Slovakia, Spanish mainland, The Netherlands and Yugoslavia (Martinez, 2004 in Fauna Europaea).

Also recorded in western Canada and the U.S.A. (California) (Spencer, 1976: 334).

NBN Atlas links to known host species:

Host species unknown

British and Irish Parasitoids in Britain and elsewhere:

Ichneumonoidea - Links to species no longer available  
Opius cingulatus Wesmael, 1835 Braconidae: Opiinae
Opius pendulus Haliday, 1837 Braconidae: Opiinae
Opius pygmaeator (Nees, 1811) Braconidae: Opiinae

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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