Euura caeruleocarpus ( Hartig, 1837 )

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 : 83-84

publication ID	https://doi.org/10.5852/ejt.2025.977.2799
publication LSID	lsid:zoobank.org:pub:73DA044B-EB3D-4BF1-97EA-7430036DEEE0
DOI	https://doi.org/10.5281/zenodo.15020853
persistent identifier	https://treatment.plazi.org/id/03BCA619-FF8A-D841-9730-FC2AFACEFB72
treatment provided by	Plazi (2025-03-03 10:25:10, last updated 2025-03-20 21:31:02)
scientific name	Euura caeruleocarpus ( Hartig, 1837 )
status

Treatment

137 Euura caeruleocarpus ( Hartig, 1837)

Figs 135 View Figs 134–137 , 371 View Figs 366–379

Nematus propinquus Dahlbom, 1835a: 25 . Nomen oblitum ( Blank et al. 2009). Described based on larvae. Type material not located. Type locality: Sweden, Skåne, Lilla Raby near Lund. Synonymy with brachyacanthus by Thomson (1871).

Nematus caeruleocarpus Hartig, 1837: 187 . Nomen protectum ( Blank et al. 2009).

Nematus sulcipes Hartig, 1837: 186–187 . Lectotype designated below. Synonymy by Kriechbaumer (1885).

Nematus brevispinis Förster, 1854a: 338–339 . Lectotype designated below. Synonymy by Kriechbaumer (1885).

Nematus brachyacanthus Thomson, 1863: 629 . Lectotype designated below. Synonymy by Cameron (1885).

Nematus insubricus Cobelli, 1892: 70–71 . Holotype ♀ (ROV), not examined. Type locality: Italy, Milano area . Synonymy by Dalla Torre (1894).

Diagnosis

The most similar species is E. vicina , which is best distinguished by its inner hind tibial spur being longer than the apical breadth of hind tibia (shorter in E. caeruleocarpus ). Occasionally, northern specimens of E. caeruleocarpus have a bicoloured pterostigma (basally or externally black and apically or internally brown or yellowish). Genetically, E. villosa is very close to E. caeruleocarpus , but morphologically these species can be distinguished well:

– head and thorax with long hair; hind tibia completely and hind tarsus mainly yellow; pterostigma yellow .................................................................................................................................. E. villosa

– head and thorax with short hair; hind tibia black at tip and hind tarsus completely black; pterostigma black, rarely bicoloured ........................................................................................ E. caeruleocarpus .

Female: 8.0– 10.5 mm. Male: 7.5–8.5 mm.

Type material examined

Holotype Nematus caeruleocarpus

GERMANY – Niedersachsen • ♀; Harz ; 51.8° N, 10.3° E; W. Saxesen leg.; ZSM, GBIF-GISHym3212 . GoogleMaps

Lectotype Nematus sulcipes , here designated GERMANY • ♀; ZSM, GBIF-GISHym3446 .

Lectotype Nematus brevispinis , here designated

GERMANY – Nordrhein-Westfalen • ♂; Aachen area ; 50.77° N, 6.09° E; ZSM, GBIF-GISHym 3210. GoogleMaps

Lectotype Nematus brachyacanthus , here designated

SWEDEN • ♀; Skåne; MZLU, MZLU2017284 About MZLU .

Host plants

The main hosts are Salix spp. , particularly S. fragilis L., S. purpurea L., S. triandra L. and S. viminalis L. ( Miles 1936). Less frequently used are Populus spp. (e.g., Chambers 1947). Unconfirmed are Paeonia officinalis L., Delphinium sp. and Aquilegia sp. ( Benson 1958a).

Genetics

COI

Based on 8 specimens, maximum within-species distance is 1.22% and the nearest neighbour, diverging by a minimum of 0.61%, is Euura villosa .

Nuclear

Based on 3 specimens, maximum within-species distance is 0.33% (0.33% based on haplotypes of individual females). The nearest neighbour, diverging by a minimum of 0.5%, is Euura villosa .

Distribution and material examined

Palaearctic. Specimens studied are from Austria, Bulgaria, Finland, Germany, Russia, and Sweden.

References

Benson R. B. 1958 a. Hymenoptera, Symphyta. Handbooks for the Identification of British Insects 6 (2 c): 139-258.

Blank S. M., Taeger A., Liston A. D., Smith D. R., Rasnitsyn A. P., Shinohara A., Heidemaa M. & Viitasaari M. 2009. Studies toward a World Catalog of Symphyta (Hymenoptera). Zootaxa 2254: 1-96. https://doi.org/10.11646/zootaxa.2254.1.1

Cameron P. 1885. A Monograph of the British Phytophagous Hymenoptera (Tenthredo, Sirex and Cynips, Linne). Vol. 2. Ray Society, London. https://doi.org/10.5962/bhl.title.59527

Chambers V. H. 1947. A list of sawflies from Bedfordshire. The Entomologist's Monthly Magazine 83 (8): 91-95.

Cobelli R. 1892. Quattro nuove specie di Imenotteri. Verhandlungen der kaiserlich-koniglichen zoologisch-botanischen Gesellschaft in Wien, Wissenschaftliche Abhandlungen 42 (1): 67-72. Available from https://www.biodiversitylibrary.org/page/43107158 [accessed 20 Nov. 2024].

Dahlbom G. 1835 a. Conspectus Tenthredinidum, Siricidum et Oryssinorum Scandinaviae, quas Hymenopterorum familias. Kongliga Swenska Wetenskaps Academiens Handlingar 1835: 1-16. https://doi.org/10.5962/bhl.title.66999

Forster A. 1854 a. Neue Blattwespen. Verhandlungen des naturhistorischen Vereines der preussischen Rheinlande und Westfalens 1: 265-350. Available from https://www.biodiversitylibrary.org/page/60190587 [accessed 20 Nov. 2024].

Hartig T. 1837. Die Aderflugler Deutschlands mit besonderer Berucksichtigung ihres Larvenzustandes und ihres Wirkens in Waldern und Garten fur Entomologen, Wald- und Gartenbesitzer. Die Familien der Blattwespen und Holzwespen nebst einer allgemeinen Einleitung zur Naturgeschichte der Hymenopteren. Haude und Spenersche Buchhandlung, Berlin.

Kriechbaumer J. 1885. Blattwespenstudien. Correspondenzblatt des Naturwissenschaftlichen Vereines in Regensburg 39: 9-20. Available from https://www.biodiversitylibrary.org/page/39543683 [accessed 20 Nov. 2024].

Miles H. W. 1936. On the biology of certain species of Holcocneme Kon. (Hymenoptera - Symphyta). Annals of Applied Biology 23: 781-802. https://doi.org/10.1111/j.1744-7348.1936.tb06127.x

Thomson C. G. 1863. Entomologiska bidrag. Ofversigt af Kongliga Vetenskaps-Akademiens forhandlingar 19 [1862]: 611-639. Available from https://www.biodiversitylibrary.org/page/15376419 [accessed 20 Nov. 2024].

Thomson C. G. 1871. Hymenoptera Scandinaviae - Tenthredo et Sirex Lin. H. Olsson, Lundae.

Figures

Figs 134–137. Lancets of Euura Newman, 1837.134. lipovskyi (D.R. Smith, 1974) DEI-GISHym21049. 135. caeruleocarpus (Hartig, 1837) DEI-GISHym21380. 136. villosa (Thomson, 1863) DEI- GISHym88925. 137. clibrichella (Cameron, 1878) DEI-GISHym83669.

Figs 366–379. Penis valves of Euura Newman, 1837. 366. declinata (Förster, 1854), holotype? (Conde unpubl.). 367. declinata DEI-GISHym17598. 368. scotonota (Förster, 1854) DEI-GISHym12002. 369. scotonota W18212. 370. lipovskyi (D.R. Smith, 1974) DEI-GISHym84702. 371. caeruleocarpus (Hartig, 1837) DEI-GISHym88914. 372. villosa (Thomson, 1863), Nematus arcticus Holmgren, 1869, lectotype NHRS-HEVA000006480. 373. clibrichella (Cameron, 1878) DEI-GISHym84184. 374. clitellata group sp. 1 ZMUO.035580. 375. clitellata (Serville, 1823) ZMUO.030824. 376. clitellata cluster 3 ZMUO.030823. 377. clitellata cluster 4 DEI-GISHym84255. 378. clitellata cluster 5 ZMUO.059059. 379. fallax (Serville, 1823) DEI-GISHym84275.