Euura ribesii ( Scopoli, 1763 )

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 : 203-205

273 Euura ribesii ( Scopoli, 1763)

Figs 217 , 509

Tenthredo ribesii Scopoli, 1763: 280 . Syntypes ♂♂ and larvae (lost or destroyed). Type locality: Slovenia, Carniola [Kranjska].

Nematus trimaculatus Serville, 1823: 71 . Syntypes ♀♀ (no type material located: Lacourt 2000). Type locality: North of France. Synonymy by Dalla Torre (1894).

Nematus dimidiatus Serville, 1823: 70–71 . Lectotype ♀ (MNHN), designated by Lacourt (2000), not examined. Type locality: France, Ile-de-France, Paris. Synonymy by Enslin (1916a).

Nematus ribesii Stephens, 1829: 329 . Syntypes ♀ ♂, larvae (no type material located). Type locality: United Kingdom, England. Synonymy by Dalla Torre (1894). Secondary homonym of Tenthredo ribesii Scopoli, 1763 [ Euura ribesii ( Scopoli, 1763) ].

Tenthredo ventricosa Bouché, 1834: 140 . Syntype larvae (no type material located). Type locality: not stated. Synonymy by Dalla Torre (1894).

Nematus grossulariae Dahlbom, 1835a: 22–23 . Syntype larvae (adults reared, but not described). No syntypes found in MZLU: a specimen from Dahlbom’s collection cannot be a syntype, because according to the label the female emerged in May 25 in 1835, while according to the original description the reared adults emerged in April. Type locality: Sweden. Synonymy by Dalla Torre (1894).

Nematus grossulariatus Dahlbom, 1835a: 25 . Type locality: Sweden, Skåne. Holotype not found in MZLU. Synonymy by Dalla Torre (1894).

Nematus ventricosus Hartig, 1837: 196–197 . Syntypes ♀ ♂ (according to Hartig in ZMHB: not located). Type locality: not stated. Synonymy by Dalla Torre (1894).

Nematus flavipes Hartig, 1840: 24 . Lectotype designated below. Synonymy by Konow (1905b). Primary homonym of Nematus flavipes Dahlbom, 1835 [ Pristiphora appendiculata ( Hartig, 1837) ].

Nematus xanthophorus Hartig, 1840: 25 . Syntypes, sex not stated, not located. Type locality: northern Germany. Synonymy by Konow (1903b).

Nematus ribis Leduc, 1842: 46 , 48, pls 1–2. Syntypes ♀ ♂, larva, pupa. No type material is known to exist. Type locality: France, Seine-et-Oise. Synonymy by Taeger et al. (2010).

Tenthredo grossulariae Fischer von Waldheim, 1843: 2 . Syntypes, sex not stated. No type material is known to exist. Type locality: Russia. Synonymy by Dalla Torre (1894). Primary homonym of Tenthredo (Emphytus) grossulariae Klug, 1818 [ Ametastegia (Protemphytus) pallipes ( Spinola, 1808) ].

Pteronus longicornis Marlatt, 1896a: 44–46 (key), 72. Secondary homonym of Nematus longicornis Eschscholtz, 1822 (incertae sedis).

Pteronus arapahonum Cockerell, 1906: 220 . Syntypes (3 ♂♂) (USNMENT00778028, USNM, http://n 2t.net/ark:/65665/3c9dcf78c-4891-4bb4-8fe8-b65d3cc54874), not examined. Type locality: USA, Colorado, Boulder.

Pteronidea aceris Rohwer, 1915: 211 . Holotype ♀ (USNMENT00778631, USNM, http://n 2t.net/ ark:/65665/3df27021b-df45-4a52-b962-faf9ad8c1013), not examined. Type locality: USA, Pennsylvania, Charter Oak. Synonymy by Ross (1951).

Pteronidea ribesii var. konowi Enslin, 1916a: 420 . Lectotype designated below. Synonymy by Smith (1979). Secondary homonym of Pteronus konowi Jakowlew, 1891 [= Euura konowi ( Jakowlew, 1891) , incertae sedis].

Pteronidea ribesii var. feminina Enslin, 1916a: 419 . Lectotype designated below. Synonymy by Smith (1979).

Pteronidea equatia MacGillivray, 1923a: 30 . Holotype ♂ (INHS), not examined. Type locality: USA, Oregon, Corvallis. Synonymy by Ross (1951).

Diagnosis

Large subapical tooth (broad and as long as apical tooth), costa as black as pterostigma along most of its length (only approximately basal quarter paler), typically mostly pale flagellum, and typically completely pale abdomen distinguish the females from the others in the group. Subapical tooth is somewhat or distinctly smaller and costa is in most cases paler in the other species of the group. Viitasaari (1980) suggested that the tip of valvula 3 in lateral view is blunt in E. ribesii compared to other species, but we did not observe any consistent differences between the species. Males are best recognised by the prominent and broad projection of tergite 8 that is slightly constricted at its base, dorsally mostly black abdomen and, as in females, the mostly black costa.

Type material examined

Lectotype Nematus flavipes , here designated

GERMANY • ♂; northern Germany [according to Hartig 1840: 22]; ZSM, GBIF-GISHym3686 .

Syntype Pteronus longicornis

USA – Michigan • ♂; Ingham, Agricultural College ; 42.746° N, 84.483° W; USNM, USNMENT00778536 , http://n 2t.net/ark:/65665/320572933-77a7-4e85-bbc7-8e6e65c4e5e0 .

Lectotype Pteronidea ribesii var. konowi , here designated

GERMANY – Bayern • ♀; Fränkischer Jura; E. Enslin leg.; ZSM, GBIF-GISHym3322 .

Lectotype Pteronidea ribesii var. feminina , here designated

COUNTRY UNKNOWN • ♂; [label illegible]; ZSM, GBIF-GISHym3274 .

Host plants

Ribes spp. : most frequently R. rubrum and R. uva-crispa , only rarely on R. nigrum ( Viitasaari 1980) . Larvae gregarious.

Genetics

COI

Based on 8 specimens, maximum within-species distance is 0.46% and the nearest neighbour, diverging by a minimum of 3.8%, is Euura leucotrocha .

Nuclear

Based on 4 specimens, maximum within-species distance is 0% (0.12% based on haplotypes of individual females). The nearest neighbour, diverging by a minimum of 0.53%, is Euura leucotrocha .

Distribution and material examined

Holarctic. Specimens studied are from Austria, Canada (only genetics), Finland, Germany, Norway, and the United Kingdom.

Figures

Figs 216–219. Lancets of Euura Newman, 1837. 216. quieta (Eversmann, 1847) ZMUO.030880. 217. ribesii (Scopoli, 1763) PR.616VV. 218. similator (Förster, 1854) DEI-GISHym88535. 219. ribesicola (Lindqvist, 1949) PR.619VV.

Figs 506–519. Penis valves of Euura Newman, 1837. 506. gracilidentata (Viitasaari, 1980) DEI- GISHym80085. 507. leucotrocha (Hartig, 1837) ZMUO.030860. 508. quieta (Eversmann, 1847) ZMUO.032101. 509. ribesii (Scopoli, 1763) DEI-GISHym88577. 510. similator (Förster, 1854) DEI-GISHym88551. 511. ribesicola? (Lindqvist, 1949) DEI-GISHym86112. 512. insignis (Hartig, 1840) 170127-5. 513. scutellata (Hartig, 1837) DEI-GISHym80058. 514. nigerrima (Konow, 1903). Pachynematus nigerrimus Konow, 1903, lectotype GBIF-GISHym3883. 515. nigerrima, Nematus fumosus Lacourt, 1991,holotypeDEI-GISHym12672.516. notabilis(Konow, 1903) DEI-GISHym13871. 517. notabilis, Pteronus notabilis Konow, 1903, lectotype GBIF-GISHym3862. 518. putoni (Konow, 1903) DEI-GISHym16241. 519. vicina (Serville, 1823) DEI-GISHym88484.