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

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Chromatomyia scabiosae (Hendel, 1935)
[Diptera: Agromyzidae]


Phytomyza scabiosae Hendel, 1935. Fliegen palaearkt. Reg. 6(2): 473
Phytomyza scabiosae Hendel, 1935; Spencer, 1972b. Handbk ident. Br. Ins. 10(5g): 88, 116
Chromatomyia scabiosae (Hendel, 1935); Spencer, 1990. Host specialization in the World Agromyzidae (Diptera) : 243, (figs 921-2) 244.
Phytomyza scabiosae Hendel, 1935; Winkler et al. 2009. Syst. ent. 34: 260-292.


Leaf-mine: Mine linear and winding in upper surface. Pupation in the mine (Spencer, 1972b: 88).

Upper-surface corridor, loops closely together. Frass in thread fragments or pearl string, seemingly lying in a central line. Pupation within 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 (1937).

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).

White, grey or shining black (Spencer, 1972b: 88).

Hosts in Great Britain & Ireland:

Dipsacaceae        
Scabiosa columbaria Small Scabious British Wild Flowers by John Somerville et al. Spencer, 1972b: 116

Hosts elsewhere:

Dipsacaceae        
Scabiosa       Spencer, 1990: 244
Scabiosa columbaria Small Scabious British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Scabiosa ochroleuca     Bladmineerders van Europa

Time of year - mines: September (Bladmineerders van Europa).

Time of year - adults: Currently unknown.

Distribution in Great Britain & Ireland: Local. Surrey (Chipstead) (Spencer, 1972b: 88). (NBN Gateway).

Distribution elsewhere: Northern Germany (Spencer, 1954), Poland and Spanish mainland (Martinez in Fauna Europaea).

NBN Interactive Grid Maps of known host species:

Scabiosa columbaria

British and Irish Parasitoids in Britain and elsewhere:

Ichneumonoidea  
Chrysocharis orbicularis (Nees, 1834) Eulophidae: Entedoninae
Chorebus scabiosae Griffiths, 1967 Braconidae: Alysiinae
Chorebus tanis (Nixon, 1945) Braconidae: Alysiinae
Phaedrotoma diversa Sz├ępligeti, 1898 Braconidae: Opiinae
Phaedrotoma exigua Wesmael, 1835 Braconidae: Opiinae
Phaedrotoma diversa (Sz├ępligeti, 1898) Braconidae: Opiinae


External links: Search the internet:
Biodiversity Heritage Library
Bladmineerders van Europa
British leafminers
Encyclopedia of Life
Fauna Europaea
NBN Gateway
NHM UK Checklist
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