Euura tiliae (Zinovjev, 1998), 2025

Prous, Marko, Liston, Andrew, Monckton, Spencer K., Kramp, Katja, Vårdal, Hege, Vikberg, Veli, Heibo, Erik & Mutanen, Marko, 2025, West Palaearctic species of Euura Newman, 1837 (Hymenoptera, Tenthredinidae), European Journal of Taxonomy 977, pp. 1-377 : 241

331 Euura tiliae (Zinovjev, 1998) comb. nov.

Nematus tiliae Zinovjev, 1998: 23–26 .

Diagnosis

Could be confused with almost completely pale specimens of Euura miliaris or members of the E. bergmanni and E. oligospila groups. The rather short valvula 3 is most similar to E. jugicola , E. hypoxantha , and the E. papillosa group. The lancet is most similar to the E. papillosa group (overall shape, serrulae, and radix seems to be about as long as lamnium). Its darker pterostigma and not clearly bifid claws (somewhat similar to E. gregaria ) distinguish E. tiliae from the species mentioned above. Without genetic data it is not clear to which Euura group E. tiliae could belong, but there seems to be little doubt that the species belongs to Euura rather than Nematus . Shinohara & Hara (2015) retained it in Nematus . We do not consider the small differences in claws to other Euura to be sufficient to exclude the species from this genus.

Type material examined

Holotype Nematus tiliae

JAPAN – Hokkaido • ♀; Akaigawa, Meiji ; 43.013° N, 140.898° E; 11 Sep. 1996; M. Ohara leg.; NSMT, NSMT-HYM62118 .

Host plants

Tilia maximowicziana Shiras. (Zinovjev 1998) .

Genetics

COI

No data.

Nuclear No data.

Distribution and material examined

East Palaearctic. Only one specimen studied, from Japan.