Fenusa
dohrnii (Tischbein, 1846) [Hymenoptera: Tenthredinidae]
Fenusa
varipes (Lepeletier, 1823). [Unavailable]
Caliosysphinga dohrni Tischbein, 1846 [Unavailable]
Fenusa dohrni (Tischbein, 1846) [Unavailable]
Kaliosysphinga dohrni Tischbein, 1846 [Unavailable]
Fenusa (Fenusa) dohrnii (Tischbein, 1846)
Fenusella dohrnii (Tischbein, 1846)
Kaliofenusa dohrnii (Tischbein, 1846)
Kaliosysphinga dohrnii Tischbein, 1846
Fenusa curta Norton, 1861
Fenusa curtis Norton, 1861 [Unavailable]
Fenusa curtus Norton, 1862
Fenusa nigricans C. G. Thomson, 1870 [Unavailable]
Kaliosysphinga nigricans (C. G. Thomson, 1870) [Unavailable]
Fenusa melanopoda (Cameron, 1876)
Kaliosysphinga melanopoda (Cameron, 1876)
Phaenusa melanopoda Cameron, 1876
Phoenusa melanopoda (Cameron, 1876)
Fenella westwoodi Cameron, 1882
Fenella westwoodii Cameron, 1882 [Unavailable]
Fenusa pumila Brischke, 1883 [Unavailable].
|
Leaf
miner: A large brownish blotch, without an initial corridor. Usually the
mine starts near a vein axil, and expands towards the leaf margin.
The mine mostly remains enclosed by two thick lateral veins; only
near the leaf margin (and especially in thin shadow leaves) the
mine may trespass over the side veins. Often several mines in a
leaf. The mine is upper surface, but quite deep, specially when
the larva is young not all tissue is eaten away, and the mine keeps
a greenish tinge there. Contrary to Heterarthrus vagans,
at least as common on the same host, the larva vacates the mine
prior to pupation (Bladmineerders van Europa).
A large, brown upper surface blotch, initially between veins and running towards the margin (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).
The larva is illustrated in British
leafminers and Bladmineerders van Europa. The larva vacates the mine prior to pupation (Bladmineerders van Europa).
Pupa:
The pupae of sawflies have visible head appendages, wings and legs which lie in sheaths.
Adult:
Details unknown.
Hosts in Great Britain and Ireland:
Hosts
elsewhere:
Time
of year - larvae: Bivoltine - early summer onwards. Trivoltine
in a good year (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 and Ireland: Very common (British
leafminers) including Bedfordshire, Cambridgeshire, Cheshire,
Cumberland, Derbyshire, Glamorgan, Mid-west Yorkshire, Monmouthshire,
North Wiltshire, North-west Yorkshire, South Essex, South Lancashire,
South Wiltshire, Surrey, West Gloucestershire, West Suffolk and
Worcestershire (NBN
Atlas).
Also
recorded in the Republic of Ireland (Fauna Europaea).
Distribution
elsewhere: Widespread in continental Europe including Austria,
Belgium, Bulgaria, Corsica, Croatia, Czech Republic, Danish mainland,
Estonia, Finland, French mainland, Germany, Hungary, Italian mainland,
Luxembourg, Poland, Romania, Russia - Central, Slovakia, Spanish
mainland, Sweden, Switzerland, The Netherlands and Ukraine. Also
recorded in the Nearctic region (Fauna Europaea).
NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere:
|