Genus Asionurus Braasch & Soldan, 1986 Figs 4 A–B7C–D 9B

Remarks.

Three species of Asionurus mayflies have been reported from the Oriental region (Braasch 2011; Braasch and Soldán 1986a; Braasch and Soldán 1986b). Only Asionurus primus Braasch & Soldán, 1986 was collected and reported from northern Thailand. The identity of Vietnamese specimens of Asionurus primus (Braasch and Soldán 1986a) with those of northern Thailand (Sangpradub et al. 2002) is probable but needs confirmation by reared males from Vietnam.