Euura acuminalis ( Vikberg, 1982 )

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 : 46

103 Euura acuminalis ( Vikberg, 1982)

Fig. 335

Pteronidea acuminata Lindqvist, 1968: 194–195 . Secondary homonym of E. acuminata Enslin, 1915 [ E. purpureae ( Cameron, 1884) ].

Nematus acuminalis Vikberg, 1982 . Replacement name for P. acuminata .

Diagnosis

Only the two type specimens were available for study. The holotype male (4.7 mm) is rather pale and has a relatively distinctive penis valve that cannot be associated with any other species of Euura . The studied female paratype is more or less the same colour, but conspecificity with the male is uncertain. Holotype male ventrally pale (also antenna slightly); dorsally black, except last 2–3 terga (6 th slightly); head extensively pale around eyes; hind tibia nearly completely pale; hind tarsi mostly black or brown; pterostigma yellow or brown; claws bifid; projection of tergite 8 longer than broad, rather distinct; antenna long. The female is externally most similar to that of striatipleuris (synonymised here with E. fuscarima ), particularly paratypes GL.3547 and GL.3548, but saw may be more similar to that of E. poppii which may also have similar colouration. Placement in the bipartita group is uncertain.

Type material examined

Holotype Pteronidea acuminata

SWEDEN – Torne Lappmark • ♂; Torneträsk; 68.22° N, 19.74° E; 400 m a.s.l.; R. Malaise leg.; NHRS, NHRS-HEVA000003990 .

Paratype Pteronidea acuminata

SWEDEN – Torne Lappmark • 1 ♀; same data as for holotype; NHRS, NHRS-HEVA000003991 .

Host plants

Unknown.

Genetics

COI

No data.

Nuclear No data.

Distribution and material examined

Palaearctic. Specimens studied are from Sweden.

Figures

Figs 324–337. Penis valves of Euura Newman, 1837. 324. bergmanni (Dahlbom, 1835) http://id.luomus.fi/GP.110174. 325. brevivalvis (Thomson, 1871) DEI-GISHym84227. 326. brevivalvis ZMUO.030870. 327. dispar (Zaddach, 1876) DEI-GISHym88519. 328. leptocephalus (Thomson, 1863) DEI-GISHym88730. 329. respondens (Förster, 1854) DEI-GISHym12514. 330. sylvestris (Cameron, 1884) DEI-GISHym83594. 331. sylvestris ZMUO.033416. 332. glutinosae (Cameron, 1882) DEI-GISHym84096. 333. viridis (Stephens, 1835) ZMUO.030834. 334. bergmanni group sp. 1 ZMUO.033968. 335. acuminalis (Vikberg, 1982), holotype NHRS-HEVA000003990. 336. albipennis (Hartig, 1837) ZMUO.060241. 337. annulata (Gimmerthal, 1834) DEI-GISHym84060.