Dolerus incisus Goulet 1986
Creators
- 1. Senckenberg Deutsches Entomologisches Institut, Eberswalder Str. 90, 15374 Muencheberg, Germany
- 2. Ecology and Genetics Research Unit, PO Box 3000, 90014 University of Oulu, Oulu, Finland
- 3. Estonian Naturalists' Society, Struve 2, Tartu 51003, Estonia
- 4. Alkutie 41 E, 00660 Helsinki, Finland
- 5. Liinalammintie 11 as. 6, 14200 Turenki, Finland
- 6. Department of Environmental and Biological Sciences, University of Eastern Finland, 80101 Joensuu, Finland
- 7. Senckenberg Deutsches Entomologisches Institut, Eberswalder Str. 90, 15374 Muencheberg, Germany & Ecology and Genetics Research Unit, PO Box 3000, 90014 University of Oulu, Oulu, Finland & Department of Zoology, Institute of Ecology and Earth Sciences, University of Tartu, Vanemuise 46, 51014 Tartu, Estonia
Description
Dolerus incisus Goulet, 1986
Fig. 20A-C
Notes.
Finland: Regio kuusamoensis, Kuusamo Siikauopaja, YKJ grid coordinates: 7362:3612 [66.334°N, 29.511°E], 2♀ (ZMUO.035155, ZMUO.035156), 12.06.2018. 1♀ (ZMUO.045265), 20.06.2020. All specimens leg. M. Mutanen. ZMUO.
First record in the Palaearctic. Recorded previously only in boreal North America: Alaska, Alberta, Yukon, and North West Territories (Goulet 1986). The genetic and morphological affinity of D. incisus to D. junci and D. yukonensis suggests that the host plant of D. incisus is also a species of Equisetum (Goulet 1986). The habitat in Finland is a shallow oxbow lake (meander) of the Oulanka river with plenty of Equisetum fluviatile, which is also the host of D. junci. This habitat matches perfectly with that given for D. incisus in North America by Goulet (1986). Several other Dolerus species occur syntopically, including the closely related D. junci Stephens (= D. cothurnatus auct., see above). The melanic form of D. incisus is recorded from Finland (all three are females, see above, Fig. 20A) and Norway (Heimdalsmunnen, alt 1150 m, leg. E. Heibo, CEH). Melanic females of D. subarcticus (recorded from Norway and Kamtschatka, see under D. subarcticus) can be distinguished by their postocellar furrows, the sawsheath (valvula 3) shape, and its apical setation (Fig. 20B). Melanic males can be separated most reliably by their penis valves (Fig. 20C, 20D). Only the melanic colour form of D. incisus has so far been recognized from Fennoscandian countries, whereas in Canada and the USA both the black color form and a form with red-banded abdomen and partly reddish legs are known. We studied paratypes of D. incisus: 2♀, 2♂, some of them dissected, CNC.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Tenthredinidae
- Genus
- Dolerus
- Kingdom
- Animalia
- Order
- Hymenoptera
- Phylum
- Arthropoda
- Scientific name authorship
- Goulet
- Species
- incisus
- Taxon rank
- species
- Taxonomic concept label
- Dolerus incisus Goulet, 1986 sec. Liston, Mutanen, Heidemaa, Blank, Kiljunen, Taeger, Viitasaari, Vikberg, Wutke & Prous, 2022
References
- Goulet, H, 1986. The genera and species of the Nearctic Dolerini (Symphyta: Tenthredinidae: Selandriinae): classification and phylogeny. Memoirs of the Entomological Society of Canada 135(S135): 1-208. https://doi.org/10.4039/entm118135fv