EPHEMEROPTERA OF THE WORLD

arb.sig. ABC

  

Eusetisura - Isonychia/fg2

ussurica Bajkova 1970 [Isonychia ussurica]

RUSSIA, Khabarowskiy Kray, river Ussuri, Zabaykalskoe, 26.VII.2003. Photo and determination by T. Tiunova.

male imago