It is genetically close to the widespread Glandirana rugosa, but it is morphologically distinguishable and postzygotically isolated from the latter species.

[1] The specific name susurra is derived from the Latin susurrus meaning "whispering" and refers to the relatively quiet advertisement call of this species compared to those of other sympatric anuran (Hyla japonica and Rhacophorus arboreus).

[1] Both Glandirana rugosa and Glandirana susurra are present on Sado Island, but their ranges do not overlap: G. susurra occurs on the central part of the island while G. rugosa in the south and in the north.

Experiments suggest that the postzygotic reproductive isolation between these lineages is nearly perfect, although it remains to be confirmed that this also applies to specimens originating from areas near the species boundary.

[1] Glandirana susurra occurs near various bodies of water, such as rice fields, small streams, and ponds.