Aneugmenus temporalis

Recorded widely but sparsely throughout Britain, although Scottish records are so far only from the west of the country. Observations appear to have declined in recent years (Musgrove, 2023).

Aneugmenus temporalis is black bodied in both sexes, though the pronotum may be edged narrowly with white. The occipital carina does not extend more than half way up the eye. The distance between cenchri is less than the width of a cenchrus, the cenchri themselves being elongate (3:1). In males the hind femora are black.

Larvae feed on bracken. They are green in colour and all larvae in the Aneugmenus genus have a v-notch in the first thoracic annulet behind the head.

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Size: 5 - 6mm

GB IUCN Status: Vulnerable
GB Rarity Status: None

Distribution: England, Scotland, Wales, Ireland

Flight period: May to August

Plant associations: Pteridium aquilinum (bracken)

The National Biodiversity Network records are shown on the map below. (See terms and conditions)

References:

Benson, R.B., 1952. Handbooks for the Identification of British Insects. Hymenoptera, Symphyta, Vol 6, Section 2(a-c), Royal Entomological Society, London

Blank, S.M., 1998. Die mittel - und nordeuropaischen Selandriinae (Hymenoptera:Tenthredinidae).

Lacourt, J. 1990: Le genre Aneugmenus Hartig 1837 en Afrique du nord (Hymenoptera Tenthredinidae). - Bulletin mensuel de la Société Linnéenne de Lyon, Lyon 59(6): 170-172

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

Musgrove, A.J. 2023. A review of the status of sawflies of Great Britain - Phase 2: The Athaliidae and the Tenthredinidae (excluding Nematinae). Natural England, unpublished

Niu, G.; Wei, M. 2013: Review of Aneugmenus Hartig (Hymenoptera: Tenthredinidae) with description of a new species from China and a key to world species (excluding Neotropical). - Entomotaxonomia, Wugong 35(3): 221-232.