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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Fenusella hortulana (Klug, 1818)
[Tenthredinidae]


Messa herticulana (Klug, 1818) [Unavailable]
Emphytus hortulana (Klug, 1818) [not 1814]
Emphytus (Fenusa) hortulana (Klug, 1818)
Fenusa hortulana (Klug, 1818) [not 1814]
Fenusella hortulana (Klug, 1818) [not 1814]
Messa hortulana (Klug, 1818) [not 1814]
Phaenusa hortulana (Klug, 1818) [not 1814] [Unavailable]
Phoenusa hortulana (Klug, 1818)
Tenthredo hortulana Klug, 1818 [not 1814]
Tenthredo (Emphytus) hortulana Klug, 1818 [not 1814]
Phoenusa doderleini Destefani, 1883
Phaenusa doederleini Destefani, 1883
Fenusa doederleinii Destefani, 1883 [Unavailable]
Phaenusa doederleinii Destefani, 1883 [Unavailable]
Phaenusa dandouml;derleini (Destefani, 1883) [Unavailable].
Fenusa ticinensis
Magretti, 1886
Phaenusa ticinensis Magretti, 1886
Phoenusa ticinensis Magretti, 1886.
Fenusella soenderupi
Hering, 1935
Messa soenderupi (Hering, 1935)
Fenusella sandouml;nderupi Hering, 1935 [Unavailable].


Leaf miner: transparent blotch, quickly turning brown, starting at the leaf margin. Frass in scattered grains (Bladmineerders van Europa).

Care must be taken in identifying this miner as the mines of Fenusella glaucopis can appear similar (British leafminers).

Larva: The larvae of sawflies have a head capsule, chewing mouthparts with opposable mandibles, six thoracic legs and abdominal legs (although they may be reduced) (see examples).

Identification is on larval characteristics, in particular the sclerotization of the anal ring (British leafminers). The larva is also illustrated in Bladmineerders van Europa.

Fenusella hortulana dead larva (dried and shrivelled),  ventral
Fenusella hortulana dead larva (dried and shrivelled), ventral
Image: © Willem Ellis (Bladmineerders van Europa)

Pupa: The pupae of sawflies have visible head appendages, wings and legs which lie in sheaths.

Pupation outside the mine (Bladmineerders van Europa).

Adult: The adult is illustrated in ECatSym - Electronic World Catalog of Symphyta.

Hosts in Great Britain & Ireland:

Salicaceae        
Populus alba White Poplar British Wild Flowers by John Somerville et al. Pitkin & Plant, as Messa hortulana
Populus alba White Poplar British Wild Flowers by John Somerville et al. British leafminers
Populus nigra Black-poplar British Wild Flowers by John Somerville et al. British leafminers
Populus nigra Black-poplar British Wild Flowers by John Somerville et al. Pitkin & Plant, as Messa hortulana

Hosts elsewhere:

Salicaceae        
Populus nigra Black-poplar British Wild Flowers by John Somerville et al. Bladmineerders van Europa

Time of year - larvae: May (British leafminers).

Time of year - adults: Currently unknown.

Comments: Full synonymy and references are listed in ECatSym - Electronic World Catalog of Symphyta.

Distribution in Great Britain & Ireland: Cambridgeshire (NBN Atlas).

Also recorded in the Republic of Ireland (van Achterberg in Fauna Europaea).

Distribution elsewhere: Widespread in continental Europe including Austria, Balearic Is., Belgium, Czech Republic, Danish mainland, French mainland, Germany, Hungary, Italian mainland, Luxembourg, Poland, Romania, Sicily and Switzerland. Also recorded in the Nearctic region (van Achterberg in Fauna Europaea).

NBN Atlas links to known host species:

Populus alba, Populus nigra

British and Irish Parasitoids in Britain and elsewhere: Unknown.



External links: Search the internet:
Biodiversity Heritage Library
Bladmineerders van Europa
British leafminers (as Messa hortulana)
Encyclopedia of Life
Fauna Europaea
NBN Atlas
NHM UK Checklist
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Last updated 11-May-2017  Brian Pitkin Top of page