Pamphilius gyllenhali
Mostly black with yellow markings.
In the female, the head is black and flecked with variable yellow markings as is the thorax. The abdomen is largely black above but brownish around tergites 4 and 5 and the lateral margins marked narrowly with yellow.
In the male, the head is more markedly patterned with yellow. The thorax and abdomen above are not dissimilar to the female.
Larvae feed singly in rolled leaves of sallow and willows.
Size: 8 - 11.5mm
Status: Uncommon
Distribution: England, Scotland, Wales, Ireland
Flight period: May to June
Plant associations: Salix spp., especially Salix caprea (willows, especially goat willow)
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
Viitasaari, M. ed., 2002. Sawflies (Hymenoptera, Symphyta), I: a review of the suborder, the Western Palaearctic taxa of Xyeloidea and Pamphilioidea. Tremex Press.