Dryaderces

Dryaderces is a small genus of frogs in the family Hylidae.^[2][3] Their known distribution is disjunct, with one species found in the upper Amazon Basin and lower Andean slopes between central Peru and Amazonian Bolivia, and another one in Pará, Brazil. Its sister taxon is Osteocephalus.^[2] No phenotypic synapomorphies defining the genus are known.^[1]

Dryaderces
Dryaderces inframaculata
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Amphibia
Order:	Anura
Family:	Hylidae
Subfamily:	Lophyohylinae
Genus:	Dryaderces Jungfer et al., 2013[1]
Type species
Hyla pearsoni Gaige, 1929
Species
2 species (see text)

Etymology

The generic name Dryaderces is derived from Ancient Greek dryad (=tree) and aderces (=unseen, invisible), thus meaning "unseen in a tree".^[1]

Description

Dryaderces are medium-sized frogs; adult males can grow to 50 mm (2.0 in) and adult females to 68 mm (2.7 in) in snout–vent length. They are pond breeders. Males have only scattered, non-spinous tubercles on the dorsum (pond-breeding Osteocephalus have heavily tuberculate dorsum, with the tips of the tubercles keratinized). Females have smoother backs. Juvenile coloration resembles adult coloration (different in Osteocephalus).^[1][4]

Species

There are two species:^[2][3]

• Dryaderces inframaculata (Boulenger, 1882)
• Dryaderces pearsoni (Gaige, 1929)

Before Dryaderces was erected, these two species were placed in Osteocephalus.^[4] There is at least one undescribed species belonging to this genus.^[1]