Abstract
Ansonia penangensis Stocliczka 1870 is re-discovered from its type locality in Penang Hill from Penang Island, Malaysia after more than a century. The species was previously known only from the type series; two adults and a larval series collected in1898, and had not been recorded since. An expanded description of this species is provided, based on four recently acquired specimens and corroborate the morphological differences between Ansonia penangensis, A. malayana and A. jeetsukumarani, with whichA. penangensis has been confused.
NSTL