Euura toeniata ( Serville, 1823 )

252 Euura toeniata ( Serville, 1823)

Figs 271 View Figs 268–271 , 479, 480 View Figs 478–491

Nematus toeniatus Serville, 1823: 67–68 . Syntypes ♀♀, probably lost ( Lacourt 2000). Type locality: France, Paris area.

Tenthredo humeralis Zetterstedt, 1838: 351 . Lectotype designated below. Synonymy by Lindqvist (1941b). Secondary homonym of Nematus humeralis Serville, 1823 [ Euura humeralis ( Serville, 1823) ].

Amauronematus aemulus Konow, 1895: 183 . Lectotype designated below. Synonymy by Konow (1905b).

Amauronematus alpicola Konow, 1895: 183–184 . Lectotype designated below. Synonymy by Lindqvist (1959c) is here re-instated.

Amauronematus zetterstedti Malaise, 1921a: 127 . Replacement name for Tenthredo humeralis Zetterstedt, 1838 .

Diagnosis

Most similar to E. obscuripes , which usually has a paler pterostigma (usually black in E. toeniata ). Nearly complete black specimens may not be reliably distinguishable similarly coloured E. obscuripes . Paler specimens of E. toeniata have more whitish or greyish markings rather than brown or reddish as in E. obscuripes . Euura toeniata is genetically similarly diverse as E. obscuripes but morphologically less variable (e.g., never with reddish markings on mesepisternum).

Type material examined

Lectotype Tenthredo humeralis , here designated

SWEDEN • ♀; locality on label illegible; MZLU, MZLU2017263 About MZLU .

Notes

Type locality in the original description: Sweden; Pello, Kengis, Janosuando, Jukkasjärvi.

Paralectotype Tenthredo humeralis

UNKNOW COUNTRY • ♀; MZLU, MZLU2017262 About MZLU .

Lectotype Amauronematus aemulus , here designated

GERMANY – Bayern • ♂; Herrieden ; 49.23° N, 10.49° E; 23 Apr. 1890; Schultheiss leg.; SDEI, GBIFGISHym4101 . GoogleMaps

Notes

Penis valve most similar to ZMUO.033962.

Lectotype Amauronematus alpicola , here designated

SWITZERLAND – Uri • ♀; Andermatt ; 46.64° N, 8.61° E; SDEI, GBIF-GISHym4087 . GoogleMaps

Host plants

A wide variety of Salix spp. ( Lacourt 1999; Macek et al. 2020), including S. caprea , S. myrsinifolia , S. myrtilloides L. and S. repens rosmarinifolia .

Genetics

COI

Based on 24 specimens, maximum within-species distance is 2.58% and the nearest neighbour, diverging by a minimum of 0%, is Euura obscuripes . When including also secondary intraindividual COI variants, maximum within-species distance is 8.21%. Two divergent secondary variants (0.76% different from each other but 7.45–7.60% different to the primary variant) were detected in ZMUO.064027 from Utsjoki, Finland, which are closest to E. obscuripes (DEI-GISHym31073) from California, USA (with distance of 2.74–2.89%).

Nuclear

Based on 19 specimens, maximum within-species distance is 0.99% (0.68% based on haplotypes of individual females). The nearest neighbour, diverging by a minimum of 0.07%, is Euura obscuripes . When excluding the E. obscuripes specimen DEI-GISHym19806 with only 1529 bp of NaK and POL2 available, E. obscuripes is minimum of 0.15% different.

Distribution and material examined

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