Euura dispar (Zaddach, 1876)

Prous, Marko, Liston, Andrew & Mutanen, Marko, 2021, Revision of the West Palaearctic Euura bergmanni and oligospila groups (Hymenoptera, Tenthredinidae), Journal of Hymenoptera Research 84, pp. 187-269 : 187

publication ID	https://dx.doi.org/10.3897/jhr.84.68637
publication LSID	lsid:zoobank.org:pub:1459B177-AF2B-4D39-9483-E8BA21E70E67
persistent identifier	https://treatment.plazi.org/id/84F10511-8654-5147-A9C2-D27C4C665428
treatment provided by	Journal of Hymenoptera Research by Pensoft (2021-08-24 23:17:47, last updated 2024-11-27 21:11:41)
scientific name	Euura dispar (Zaddach, 1876)
status

Treatment

Figs 4 View Figure 4 , 8A View Figure 8 , 11B View Figure 11 , 15 View Figure 15 , 24C-E View Figure 24

Nematus dispar Zaddach, 1876: Plate II(5), 5. Type locality: Heubude (according to Brischke 1884) [Poland, now part of Gdansk] (ST). Type material probably destroyed ( Blank and Taeger 1998).

Pteronidea pseudodispar Lindqvist, 1969: 242-245. Type locality: Finland, Helsinki, Munksnäs (HT). Syn. nov.

Similar species.

Most similar species are E. viridis and E. glutinosae , from which it possibly differs by having slightly larger denticles of serrulae. Males distinguishable from other species by their distinctive penis valves.

Genetic data.

COI. Based on 11 specimens, maximum within species distance is 1.75% and the nearest neighbours, diverging by a minimum of 0%, are Euura brevivalvis , Euura glutinosae , and Euura viridis . BINs: BOLD:AEC8057, BOLD:ABZ5797, BOLD:ACF5540 (main cluster).

Nuclear. Based on 6 specimens, maximum within species distance is 0.25% (0.15% based on haplotypes of individual females). The nearest neighbours, diverging by a minimum of 0.63%, are Euura brevivalvis and Euura glutinosae .

Host plants and behaviour.

Hosts: Betula pendula ( Kangas 1985) and B. pubescens ( Kontuniemi 1960). Probably two generations per year, of which larvae identified as Pteronidea pseudodispar belong to the second generation ( Lindqvist 1969).

Distribution.

Palaearctic ( Taeger et al. 2006; Sundukov 2017). Specimens studied are from Finland, Germany, Italy, Portugal, Sweden, and United Kingdom.

Type material.

Pteronidea pseudodispar Lindqvist, 1969. HT, ♀, http://id.luomus.fi/GL.3514, MZH.

References

Blank, SM, Taeger, A, 1998. Comments on the taxonomy of Symphyta (Hymenoptera) (Preliminary studies for a catalogue of Symphyta, part 4). In: Taeger, A, Blank, SM, Eds., Pflanzenwespen Deutschlands (Hymenoptera, Symphyta). Kommentierte Bestandsaufnahme. Goecke & Evers, Keltern: 141 - 174

Brischke, CGA, 1884. Beobachtungen ueber die Arten der Blatt- und Holzwespen von C. G. A. Brischke, Hauptlehrer a. D. in Langfuhr und Dr. Gustav Zaddach, Professor in Koenigsberg, mitgetheilt von Brischke aus Zaddach's Manuscripten. (Schluss). Schriften der physikalisch-oekonomischen Gesellschaft zu Koenigsberg 24 (1883): 121 - 173

Kangas, JK, 1985. Paelkaeneen Sahapistiaeisfauna 1953-1983. Paelkaene- Seuran julkaisuja 5: 1 - 113

Kontuniemi, T, 1960. Suomen sahapistiaeistoukkien ravintokasvit. Die Futterpflanzen der Saegewespenlarven (Hymenoptera, Symphyta) Finnlands. Animalia Fennica 9: 1 - 104

Lindqvist, E, 1969. Neue Nematinen aus Finnland. II. (Hymenoptera, Tenthredinidae). Notulae Entomologicae 49: 231 - 246

Sundukov, YN, 2017. Suborder Symphyta - Sawflies and Wood Wasps. In: Belokobylskij, SA, Lelej, AS, Eds., Annotated Catalogue of the Hymenoptera of Russia. Vol. 1. Symphyta and Apocrita: Aculeata. Proceedings of the Zoological Institute of the Russian Academy of Sciences, Supplement 6: 20 - 117

Taeger, A, Blank, SM, Liston, AD, 2006. European Sawflies (Hymenoptera: Symphyta) - A Species Checklist for the Countries. In: Blank, SM, Schmidt, S, Taeger, A, Eds., Recent Sawfl y Research: Synthesis and Prospects. Goecke & Evers, Keltern: 399 - 504

Figures

Fig ure 4. Euura dispar DEI-GISHym 83956, female, photographed shortly after killing in a freezer.

Figure 8. Lancets of Euura bergmanni group. A Euura dispar DEI-GISHym 84146 B Euura viridis DEI-GISHym 21364 C Euura glutinosae DEI-GISHym 80498 D Euura brevivalvis DEI-GISHym 31135.

Figure 11. Penis valves of Euura bergmanni group. A Euura bergmanni ZMUO. 032583 B Euura dispar DEI-GISHym 88519 C Euura viridis ZMUO. 030834 D Euura brevivalvis DEI-GISHym 84227 E Euura brevivalvis ZMUO. 030870 F Euura sylvestris DEI-GISHym 83594 G Euura sylvestris ZMUO. 033416 H Euura glutinosae DEI-GISHym 84096 I Euura leptocephalus DEI-GISHym 88730 J Euura respondens DEI-GISHym 12514.

Figure 15. Euura dispar adults. Female ZMUO. 034987 (A, B), male ZMUO. 040517 (C, D). Identification of the female is uncertain.

Figure 24. Euura glutinosae (A, B) and possible Euura dispar (C-E) larvae A, B France 2007 Alnus glutinosa (photos: Henri Savina) C Pyrenees 2010 Betula (photo: Henri Savina) D Finland 2020 swept larva E DEI-GISHym 12579 Germany 2020 Betula pendula. The larvae with paired red dots (C, D) have earlier been considered as representing Pteronidea pseudodispar that we consider synonymous to Euura dispar, but whether this type of larvae truly represent Euura dispar remains unconfirmed.