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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Hydromyza livens (Fabricius, 1794)
[Diptera: Scathophagidae]


Musca livens Fabricius, 1794. Entom. Syst. 4: 345
Nupharia rivularis Robineau-Desvoidy, 1830. Essai Myod.: 758.
Coelopa glabra Walker, 1849. JOURNAL: PAGE.
Hydromyza livens (Fabricius, 1794).


Leaf-mine: Mines visible from a distance as long, elegant corridors in the leaf upper-surface, often several in a leaf. The corridors run towwards to insertion of the the underwater petiole. From this point the larvae descend as borers into the petiole and finally pupate there. A part of the pupariria is thin-walled and emerges in August. The other pupariria are thick-walled; they hibernate in the petiole and rise the the surface next spring, after the petiole has rotted away (Hering, 1947a) - see also Bladmineerders van Europa.

Mines of Hydromyza livens on Nuphar lutea. Image: Willem Ellis (Source: Bladmineerders van Europa)
Mines of Hydromyza livens on Nuphar lutea
Image: © Willem Ellis (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).

Some of the puparium is thin-walled and emerges in August. Others are thick-walled; they hibernate in the petiole and rise the the surface next spring, after the petiole has rotted away (Hering, 1947a).

Comments: Stubbs in Chandler (1978) did not indicate whether his host records were British or Foreign and are therefore tentatively included under 'Hosts in Britain' and 'Hosts elsewhere'.

Hosts in Great Britain & Ireland:

Nymphaeaceae        

? Nuphar

      Stubbs in Chandler, 1978: 227
Nuphar lutea Yellow Water-lily British Wild Flowers by John Somerville et al. Mines in BMNH
Nuphar lutea Yellow Water-lily British Wild Flowers by John Somerville et al. Robbins, 1991: 28
? Nymphaea       Stubbs in Chandler, 1978: 227

Hosts elsewhere:

Nymphaeaceae        

? Nuphar

      Stubbs in Chandler, 1978: 227
Nuphar       Hering, 1957
Nuphar lutea Yellow Water-lily British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Nuphar pumila Least Water-lily   Bladmineerders van Europa
? Nymphaea       Stubbs in Chandler, 1978: 227
Nymphaea       Hering, 1957
Nymphaea alba White Water-lily British Wild Flowers by John Somerville et al. Bladmineerders van Europa

Time of year - mines: August.

Time of year - adults: Currently unknown.

Distribution in Great Britain & Ireland: Widespread in England including Warwickshire (Bedworth and Longford) (Robbins, 1991: 28), Bedfordshire (VC30), Cambridgeshire (VC29), County Durham (VC66), East Gloucestershire (VC33), East Norfolk (VC27), Huntingdonshire (VC31), Northamptonshire (VC32), South Lancashire (VC59), South Lincolnshire (VC53), Surrey and West Gloucestershire (NBN Gateway).

NBN Grid Map:

NBN Grid Map

Hydromyza livens
NBN Grid Map : NBN Terms and Conditions

Maps are only displayed if the NBN server is active. N.B. Only publicly available records, if any, are shown by default

Distribution elsewhere: Widespread in continental Europe including Denmark (Fabricius, 1794), The Netherlands (Bladmineerders van Europa), Belgium (Gosseries, 1991b), Austria, Czech Republic, Estonia, Finland, French mainland, Germany, Hungary, Lithuania, Norwegian mainland, Poland, Russia - North, Sweden and Switzerland (de Jong in Fauna Europaea).

NBN Interactive Grid Maps of known host species:

Nuphar lutea, Nuphar pumila, Nymphaea alba

British and Irish Parasitoids in Britain and elsewhere: Currently unknown.



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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Find images using Google


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