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 robustella Hendel, 1936
[Diptera: Agromyzidae]

Phytomyza robusta Hendel, 1936. Fliegen pal. Reg. 6(2): 567. [Preoccupied by Napomyza (Phytomyza) robusta Meunier, 1905]. Phytomyza robustella Hendel, 1936. Fliegen palaearkt. Reg. 6(2): 567
Phytomyza robustella Hendel, 1936; Griffiths, 1964. Entomologiske Meddeleser XXXII: 393-4
Phytomyza robustella Hendel, 1936; Spencer, 1990. Host specialization in the World Agromyzidae (Diptera) : 259, 267
Phytomyza robustella Hendel, 1936; Henshaw, 2002. Dipterists Digest 9(2): 160.

Leaf-miner: The larvae tunnel in the mid-rib of the basal leaves. Their presence causes the vein to swell. 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.

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).

Comments: Species in the robustella group all feed in the petiole, sometimes causing a gall-like swelling (Spencer, 1990: 267).

Hosts in Great Britain and Ireland: Currently unknown.

Hosts elsewhere:

Crepis biennis Rough Hawks-beard British Wild Flowers by John Somerville et al. Spencer, 1990: 267
Crepis biennis Rough Hawks-beard British Wild Flowers by John Somerville et al. Bladmineerders van Europa

Time of year - mines: April-May and June-July (Hering, 1957).

Time of year - adults: Currently unknown.

Distribution in Great Britain and Ireland: Added to the British checklist by Henshaw (2002).

Distribution elsewhere: Widespread in continental Europe including Germany (von Tschirnhaus, 1999), Austria, Czech Republic, Estonia, French mainland, Hungary and Italian mainland (Fauna Europaea).

NBN Atlas links to known host species:

Crepis biennis

British and Irish Parasitoids in Britain and elsewhere:

Chrysocharis entedonoides (Walker, 1872) Eulophidae: Entedoninae
Chrysocharis pubicornis (Zetterstedt, 1838) Eulophidae: Entedoninae
Seladerma diffine (Walker, 1833) Pteromalidae: Miscogastrinae
Ichneumonoidea - Links to species no longer available  
Chorebus alecto (Morley, 1924) Braconidae: Alysiinae
Chorebus ovalis (Marshall, 1896) Braconidae: Alysiinae
Dacnusa ocyroe Nixon, 1937 Braconidae: Alysiinae
Dacnusa pubescens (Curtis, 1926) Braconidae: Alysiinae


External links: Search the internet:
Biodiversity Heritage Library
Bladmineerders van Europa
British leafminers
Encyclopedia of Life
Fauna Europaea
NBN Atlas
NHM UK Checklist
Find using Google
Find using Google Scholar
Find images using Google

XHTML Validator
Last updated 10-Jul-2019 Brian Pitkin Top of page