Euura nigricornis ( Serville, 1823 )

177 Euura nigricornis ( Serville, 1823)

Figs 196 View Figs 195–198 , 424 View Figs 422–435

Nematus nigricornis Serville, 1823: 65 . Syntypes ♀ ♂, not located in MNHN. Type locality: France, Paris area.

Nematus zetterstedti Dahlbom, 1835a: 40 , plate fig. 5. Syntypes ♀♀ (ZMLU), not examined [but examined by Lindqvist (1956)]. Type locality: not stated. Synonymy with miniatus by Thomson (1863).

Nematus miniatus Hartig, 1837: 189–190 . Lectotype designated below. Synonymy by Konow (1903c).

Nematus sibiricus Jakowlew, 1888: 368–369 . Synonymy by Konow (1903c).

Nematus biannulatus Costa, 1890: 5 , pl. III fig. 2. Holotype ♀, not located. Type locality: Greece. Synonymy by Konow (1903c).

Diagnosis

Black antennae and mesepisternum distinguish the females from the darker specimens of E. miliaris . Male not known for certain.

Type material examined

Lectotype Nematus miniatus , here designated

GERMANY – Niedersachsen • ♀; Harz; 51.8° N, 10.3° E; W. Saxesen leg.; NFVG, GBIF-GISHym4677 . GoogleMaps

Holotype Nematus sibiricus

RUSSIA – Irkutskaja oblast • ♀; Irkutsk; 52.29° N, 104.24° E; ZIN, DEI-GISHym30174 . GoogleMaps

Host plants

Populus tremula . Records from Salix ( Georgiev et al. 2002) and Betula ( Boevé 1990) need confirmation.

Genetics

COI

Based on 6 specimens, maximum within-species distance is 2.28% and the nearest neighbour, diverging by a minimum of 3.65%, is Euura miliaris .

Nuclear

Only one sequence available, a female with haplotypes diverging by 0.01%. The nearest neighbour, diverging by a minimum of 1.7%, is Euura miliaris .

Distribution and material examined

Palaearctic. Specimens studied are from Belgium, Czech Republic (uncertain male), Finland, Germany, Russia, and Sweden.