Fenella monilicornis
This species was previously conflated with Fenella nigrita. Fenella monilicornis has long antennae (twice the breadth of the head) with 13 to 16 segments. The ratio of the third to fourth antennal segments is about1.2 to 1.0. Vein M is more curved in the basal one-third than in the apical two-thirds.
Larvae are thought to mine the leaves of wood crane's-bill.
Size: 3mm
Status: Rare
Distribution: Scotland
Flight period: Assumed bivoltine May to June and August to October
Plant associations: Possibly Geranium sylvaticum and other Geranium spp. (possibly wood crane's-bill and other crane's-bills)
The National Biodiversity Network records are shown on the map below. (See terms and conditions)
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References:
Benson, R.B., 1952. Handbooks for the Identification of British Insects. Hymenoptera, Symphyta, Vol 6, Section 2(a-c), Royal Entomological Society, London
Liston A, Knight G, Sheppard D, Broad G, Livermore L (2014) Checklist of British and Irish Hymenoptera - Sawflies, ‘Symphyta’. Biodiversity Data Journal 2: e1168. https://doi.org/10.3897/BDJ.2.e1168