Rosenberg's treefrog (
Hypsiboas rosenbergi), also known as
Rosenberg's gladiator frog or
Rosenberg's gladiator treefrog, is a species of frog in the family Hylidae found in Costa Rica, Panama, Colombia, Trinidad and Tobago and north-western Ecuador. Its name is a testimony to Mr. W. F. H. Rosenberg who collected the type series, and in English, to the aggressiveness of males of the species.
(Wikipedia)