Allantus viennensis - Viennese Spindler

This species was first recorded in London in July 2026 and a possible larva was later found on a cultivated rose in Hertfordshire.

In Allantus viennensis the antennae are short and stout and may be black or marked with yellow. The head broadens behind the eyes. The fore wing has a dark patch covering the marginal and submarginal cells beneath the unicolorous yellow stigma.  The body is black with yellow on the tegulae, first tergite and tergites four, five and the apical tergites. The femora are black with yellow tibiae darkened apically and yellow tarsi. 

Larvae feed on roses, including cultivated varieties, and brambles.

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Size: 8 - 10mm

GB IUCN Status: Not applicable
GB Rarity Status: Not applicable

Distribution: England

Flight period: May to Sept, uni- or bivoltine

Plant associations: Rosa spp., Rubus spp. (roses, brambles)

References:

Lacourt, J., 2020. Hymenoptera of Europe 2. Sawflies of Europe. NAP Editions, Verrières-le-Buisson.

Liston, A.D., 1995. Compendium of European sawflies (Vol. 3). Gottfrieding: Chalastos Forestry.