Hill Cricket Frog

The long-legged cricket frog, Minervarya syhadrensis, is a small frog: females measure 20.7 to 22.8 mm from snout to vent and males 17.5 to 19.1 mm. In the breeding season males call after the first heavy rains in April to June, mainly at night from temporary shallow pools under partly submerged grass or paddy. They call in chorus but keep 0.5 to 1 m apart (Wikipedia, general species account).

That page gives its range as India, Bangladesh, Nepal and Pakistan, with no mention of Sri Lanka, so this species' place on the Sri Lankan list should be checked. The 2012 National Red List gives no status under this name.