269 Euura gracilidentata (Viitasaari, 1980)

Figs 214, 506

Pteronidea gracilidentata Viitasaari, 1980: 34–36 .

Diagnosis

The mostly black head (including antenna) and thorax, yellow abdomen (except black first tergite), and small subapical tooth (can be almost absent in male) should usually enable identification of the species. May be a specialist on Ribes alpinum L.

Type material examined

Holotype Pteronidea gracilidentata

FINLAND – Uusimaa • ♀; Helsinge [Vantaa]; 60.30° N, 24.90° E; 1 Jun. 1964; E. Lindqvist leg.; MZH, http://id.luomus.fi/GL.2454.

Host plants

Ribes alpinum .

Genetics

COI

Based on 2 specimens, maximum within-species distance is 0.3% and the nearest neighbour, diverging by a minimum of 0.46%, is Euura leucotrocha .

Nuclear

Based on 2 specimens, maximum within-species distance is 0.03% (0.62% based on haplotypes of individual females). The nearest neighbour, diverging by a minimum of 0.5%, is Euura leucotrocha .

Distribution and material examined

Palaearctic. Specimens studied are from Finland, Germany, and Sweden.