De ávila Pires's Humming Frog

A large species for the genus. Males reach 26.8 mm and females reach 37.8 mm in snout-vent length. Color of the dorsum grayish with reddish tones (some individuals may show yellowish dorsum). Forearm yellowish or orange. Belly cream colored or white with dark-brown or black spots of irregular size and shape (Peloso and Sturaro 2008; Peloso, pers. obs.). Males show dermal spines on the anterior portion of the chin.It is commonly misidentified in collections as C. bassleri, C. ventrimaculata and C. schudikarensis.

Apparently widespread in several localities in Brazil, south of the Amazon river. Published records are for the states of Amazonas, Mato Grosso, Pará and Rondônia (Peloso and Sturaro 2008). It may occur more widely.

This is a terrestrial species. Data on reproductive ecology is lacking, but it is probably an explosive breeder. Females carry many small eggs (Peloso and Sturaro 2008). It seems locally abundant where it occurs. Individuals may be found foraging on the leaf litter during or after rain (Peloso, pers. obs.). Tadpoles and advertisement call are unknown.

C. avilapiresae was not assessed in current threatened species lists, however it should be considered as a Least Concern species. It has a broad distribution in southern Amazonia and there are records in at least two major Brazilian Governmental protected areas (P. Peloso, pers. obs.).