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

Join us on Facebook

Liriomyza taraxaci Hering, 1927
[Diptera: Agromyzidae]

Liriomyza taraxaci Hering, 1927c. Z. angew. Ent. 13: 184
Liriomyza taraxaci Hering, 1927c; Hendel, 1931. Fliegen palaearkt. Reg. 6(2): 252
Liriomyza taraxaci Hering, 1927c; Spencer, 1972b. Handbk ident. Br. Ins. 10(5g): 56 (fig. 187), 57, 114, 115
Liriomyza taraxaci Hering, 1927c; Spencer, 1976. Fauna ent. Scand. 5(1): 274, figs 490-1.
Liriomyza taraxaci Hering, 1927c; Spencer, 1990. Host specialization in the World Agromyzidae (Diptera) : 259, 263, 264 (fig. 993).

Leaf-mine: A small somewhat irregular, elongate blotch (Spencer, 1972b: 57; Spencer, 1976: 273 (fig. 491), 274).

Elongated upper-surfcace blotch with fairly little frass in loose grains. Pupation outside the mine; exit slit in upper epidermis (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 (1925). Posterior spiracles each with an ellipse of 8-10 bulbs (Spencer, 1972b: 57; Spencer, 1976: 274). The larva is illustrated in Bladmineerders van Europa.

Liriomyza taraxaci larva,  dorsal
Liriomyza taraxaci larva, dorsal
Image: © Willem Ellis (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 is illustrated in Bladmineerders van Europa.

Orchestes fagi larva,  dorsal
Liriomyza taraxaci puparium
Image: © Willem Ellis (Bladmineerders van Europa)

Comments: Leontodon autumnalis is treated as Scorzoneroides autumnalis (Autumn Hawkbit) by Stace (2010).

Hosts in Great Britain & Ireland:



autumnalis Autumn Hawkbit British Wild Flowers by John Somerville et al. Spencer, 1972b: 114
Taraxacum       Robbins, 1991: 123
Taraxacum       Spencer, 1972b: 25
Taraxacum officinale Dandelion British Wild Flowers by John Somerville et al. Mines in BMNH
Taraxacum officinale Dandelion British Wild Flowers by John Somerville et al. Spencer, 1972b: 115

Hosts elsewhere:

Aposeris       Bladmineerders van Europa
Arnoseris       Spencer, 1990: 263
Arnoseris       Bladmineerders van Europa
Leontodon       Bladmineerders van Europa
Sonchus       Spencer, 1990: 263
Taraxacum       Spencer, 1976: 274
Taraxacum       Spencer, 1990: 263
Taraxacum officinale Dandelion British Wild Flowers by John Somerville et al. Bladmineerders van Europa

Time of year - mines: June-August.

Time of year - adults: Currently unknown.

Distribution in Great Britain & Ireland: Widespread in Britain including Perth (Killin) (Spencer, 1972b: 57), Warwickshire (Coventry, Holbrooks) (Robbins, 1991: 123); South-west Yorkshire and Surrey (NBN Atlas).

Also recorded in the Republic of Ireland: Co. Kilkenny (Spencer, 1972b: 57).

Distribution elsewhere: Widespread in Europe including Denmark, Sweden, Norway (Spencer, 1976: 274); The Netherlands, Luxembourg (Bladmineerders van Europa), Belgium (de Bruyn and von Tschirnhaus, 1991), Germany (Spencer, 1976: 562), Canary Is., Finland, French mainland, Lithuania, Poland and Spanish mainland (Martinez in Fauna Europaea).

Range extending eastwards to the Central Asian Republics of the [former] U.S.S.R. (Spencer, 1976: 274).

Also recorded in Canada (Spencer, 1969a: 188).

NBN Atlas links to known host species:

Leontodon autumnali (= Scorzoneroides autumnalis), Taraxacum officinale

British and Irish Parasitoids in Britain and elsewhere:

Chrysocharis liriomyzae Delucchi, 1954 Eulophidae: Entedoninae
Chrysocharis orbicularis (Nees, 1834) Eulophidae: Entedoninae
Opius pallipes Wesmael, 1835 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
Find using Google
Find using Google Scholar
Find images using Google

XHTML Validator
Last updated 08-Nov-2017 Brian Pitkin Top of page