Pereyra, Laura CAkmentins, Mauricio SLaufer, GabrielVaira, Marcos2026-03-242026-03-2420131175-5326PMID:2631230910.11646/zootaxa.3694.6.2https://doi.org/10.11646/zootaxa.3694.6.2https://andeanlibrary.org/handle/123456789/101313Vol. 3694, pp. 525-44Elachistocleis haroi sp. nov. is described from El Algarrobal, Jujuy province, north-western Argentina. The new species is diagnosed by the dorsal pattern of mid-longitudinal bright yellow stripe from the intraocular zone, surpassing the post-cephalic transverse skin fold, to vent; dorsum grayish brown mottled with a paravertebral symmetric pattern of dark spots resembling a pine tree; and a thin regular yellow line on the posterior surface of the thighs and tibiae. The advertisement call is a long trill with an average duration of 3.18 seconds, multipulsed with a mean dominant frequency of 4.56 kHz. The tadpole is characterized by the oral dermal flaps with papillae-like edges.engArtículo Científico Publicado