b. Hydrobiomorpha spinicollis oriensis Mouchamps, 1959

Hydromorpha spinicollis ssp. oriensis Mouchamps, 1959: 315, figs. 24, 29; Satô 1972b: 52; Hansen 1999a: 217.

Type locality: Vietnam, Tonkin, Hanoi (Hansen 1999a).

Distribution in India: The precise locality of this subspecies in India could not be determined from the available literature; however, Mouchamps (1959) mentioned this subspecies as occurring in India in the original description.

Global dstribution: India, Indonesia, Laos, and Vietnam.