EUURA MILTONOTA GROUP

Euura miltonota - Redbacked Willow Nematine

Amauronematus miltonotus (Zaddach, 1883)
Amauronematus (Amauronematus) miltonotus (Zaddach, 1883)
Nematus miltonotus Zaddach, 1883
Nematus (Amauronematus) miltonotus Zaddach, 1883
Amauronematus jaroslawensis Jakowlew, 1891
Nematus jaroslawensis (Jakowlew, 1891)
Amauronematus hercyniae Konow, 1896

Scattered records across England and Wales north to Lancashire, but just three in recent years despite a large increase in recording in this part of the country (Musgrove, 2024).

A mainly southern species. The female has the head and thorax mostly yellow with the depressed parts of the mesonotum lined with black. The abdomen is mostly green (but fades to yellow) with medial black marks on at least the basal three tergites. The apices of the antennae are pale beneath. The cerci are only half as long as the projection of the sawsheath when viewed from above.

Males have the scutellum virtually impunctate.

Euura miltonota larvae feed on common osier.

Size: Female: 6.5 - 7.5mm, males: 4.5 - 5.5mm.

GB IUCN status: Data Deficient
GB rarity status: Nationally Rare

Distribution: England, Wales

Flight period: May to June

Plant associations: Salix viminalis (common osier)

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

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. 2024. A review of the status of sawflies of Great Britain - Phase 3: The Tenthredinidae (subfamily Nematinae). Natural England, unpublished

Prous, M., Liston, A., Kramp, K., Savina, H., Vårdal, H. and Taeger, A., 2019. The West Palaearctic genera of Nematinae (Hymenoptera, Tenthredinidae). ZooKeys, 875, p.63-127