EUURA VIMINALIS GROUP

Euura collactanea - Heath Pea-galler

Nematus collactaneus Förster, 1854
Eupontania collactanea rosmarinifoliae Vikberg & Zinovjev, 2006
Euura collactanea rosmarinifoliae (Vikberg & Zinovjev, 2006)

Recorded from the Lizard north to Shetland, although depends on the presence of the foodplant (Musgrove, 2024).

See Liston et al (2017) for determination of adults. The host plant is a coastal and heathland species. Within this group, males of Euura aquilonis, crassipes, collectanea, myrsiniticola, pedunculi, saliciscinereae, samolad, viminalis, herbaceae and arbusculae are inseparable.

Euura collactanea larvae feed on Creeping Willow. The gall is in contact with the midrib, projecting only below the leaf-blade. The gall is pea shaped, variably hairy or warty and tinged red to completely bright red.

Jump to other group viminalis species

Size: Female: 2.4 - 4.8mm, male: 2.9 - 4.9mm

GB IUCN status: Least Concern
GB rarity status: None

Distribution: England, Scotland, Wales, Ireland

Flight period: Univoltine

Plant associations: Salix repens repens (Creeping Willow)

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.D., Heibo, E., Prous, M., Vårdal, H., Nyman, T. and Vikberg, V., 2017. North European gall-inducing Euura sawflies (Hymenoptera, Tenthredinidae, Nematinae). Zootaxa, 4302(1), pp.1-115.

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 Natural England, unpublished