Biology:Ranitomeya aetherea
| Ranitomeya aetherea | |
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Scientific classification 
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| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Amphibia |
| Order: | Anura |
| Family: | Dendrobatidae |
| Subfamily: | Dendrobatinae |
| Genus: | Ranitomeya |
| Species: | R. aetherea
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| Binomial name | |
| Ranitomeya aetherea Koch et al., 2025
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| File:Ranitomeya vanzolinii group (geographic distribution).png | |
| Type locality [★] and other known localities [●] in Brazil | |
Ranitomeya aetherea is a species of small frog in the family Dendrobatidae endemic to the Juruá River basin of Brazil. It is one of at least 18 species named in the genus Ranitomeya and is uniquely characterized by its light blue and dark brown body and metallic spotted legs.
Discovery
A series of four Rapid Assessment Program for Environmental and Long-Term Ecological Research (RAPELD) modules were recently established in the Juruá River basin of Brazil, a region of the Amazon rainforest that is poorly studied and difficult to access. After monitoring these modules through 2023 and 2024, researchers identified an unusual frog in the genus Ranitomeya. It was only observed in one of the four RAPELD sites, in Eirunepé of Amazonas, Brazil. 26 adult individuals—nineteen males and seven females—were collected from this site for further study.[1]
These specimens were preliminarily referred to as Ranitomeya cf. yavaricola by Twomey and colleagues in 2023, who noted their morphological similarity to this species, but noted the significant geographic separation of about 300 kilometres (190 mi) between the two populations.[2] In contrast, Mônico and colleagues described the specimens as Ranitomeya aff. cyanovittata in their 2025 publication naming Ranitomeya aquamarina.[3][1]
In May 2025, Esteban Diego Koch and colleagues described Ranitomeya aetherea as a new species of Ranitomeya based on these specimens. The holotype specimen, INPA-H 47581, is an adult male collected in March 2024. The other collected specimens were assigned as paratypes.[1]
Etymology
The specific name, "aetherea", is derived from a Latin word meaning "heavenly". This name was chosen to reference both the blue shade of the animals' dorsal stripes and the enchanting feeling noted by the researchers who discovered the species.[1]
Description
Ranitomeya aetherea is characterized by having a dark reddish brown dorsum (upper side) with three light blue stripes running parallel from front to back. The gular region (throat) and venter (underside) are also light blue, with dark spots. The arms and legs are metallic copper in color, with light reddish brown spots and patches of light blue at the base of each appendage. The tadpole does not exhibit the characteristic blue patterns until its final stage (stages 37–38).[1]
Classification
In their 2025 description of Ranitomeya aetherea, Koch and colleagues tested the phylogenetic relationships of Ranitomeya species using Bayesian inference. They recovered R. aetherea as the sister taxon to R. cyanovittata in a well-supported clade also including R. yavaricola in the R. vanzolinii species group. The results of their analyses are displayed in the cladogram below.[1]
| Ranitomeya |
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References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Koch, Esteban Diego; Mônico, Alexander Tamanini; Dayrell, Jussara Santos; Ferreira, Anthony Santana; Dantas, Silionamã Pereira; Moravec, Jiří; Lima, Albertina Pimentel (2025-05-14). Pereyra, Martín O.. ed. "A remarkable new blue Ranitomeya species (Anura: Dendrobatidae) with copper metallic legs from open forests of Juruá River Basin, Amazonia" (in en). PLOS One 20 (5). doi:10.1371/journal.pone.0321748. ISSN 1932-6203. PMID 40367040. Bibcode: 2025PLoSO..2021748K.
- ↑ Twomey, Evan; Melo-Sampaio, Paulo; Schulte, Lisa M; Bossuyt, Franky; Brown, Jason L; Castroviejo-Fisher, Santiago (2023-12-30). Bell, Rayna. ed. "Multiple Routes to Color Convergence in a Radiation of Neotropical Poison Frogs" (in en). Systematic Biology 72 (6): 1247–1261. doi:10.1093/sysbio/syad051. ISSN 1063-5157. PMID 37561391.
- ↑ Mônico, Alexander Tamanini; Koch, Esteban Diego; Dayrell, Jussara Santos; Moravec, Jiří; Lima, Albertina Pimentel (2025-04-25). "An Amazonian hidden gem: a new metallic-colored species of Ranitomeya (Anura, Dendrobatidae) from Juruá River basin forests, Amazonas state, Brazil". ZooKeys (1236): 51–83. doi:10.3897/zookeys.1236.146533. ISSN 1313-2970. PMID 40322612.
Wikidata ☰ Q134563626 entry
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