Costa Rica, Panama
Species description based on Savage (2002). A tiny rocket frog (males to 17 mm, females to 18 mm). Mature males have a swollen middle finger. Throat color in males pale grey throat (white in females).
The dorsal surface is dark brown; the coloration darkens to black along the sides. The dorsal and lateral coloration is separated by a complete or partial thin light stripe. The stripe extends from the groin to either midway across the side, or all the way to the eye. The upper surfaces of the arms and legs are usually orangeish. There are no bars on the arms or legs.
The rear surface of the thigh is orangish, borded above by a dark line.
Catalog Number: USNM 50177
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Year Collected: 1912
Locality: Cana, Darién, Panama
Elevation (m): 549 to 610
- Paratype: Dunn, E. R. 1931. Occ. Pap. Boston Soc. Nat. Hist. 5: 389.
Habitat and Ecology
Lowland forest to 865 m.
This species consumes a variety of small arthropods, including large numbers of insect larvae (Toft 1981).
Silverstoneia flotator lives in leaf litter (Savage 2002).
Life History and Behavior
A series of "peets", usually three repeated in a row (Ibanez and Smith 1995, Savage 2002)
Behavior and communication
Males are territorial and will wrestle with other males to defend their territories (Savage 2002). Eggs are laid in leaf litter in a male's territory (Savage 2002). When the eggs hatch, the male transports the tadpoles to nearby streams to continue development (Savage 2002).
Males call from leaf litter during the early and later parts of the day (Savage 2002).
The tadpole body is oval-shaped, with a fairly long tail and low tail fins (Savage 2002). The body and tail are dark brown, with some darker pigmentation on the tail (Savage 2002). The ventral surface is pale (Savage 2002). Tadpoles can orient their large mouths dorsally to feed on particles trapped in the surface film of water (Savage 2002).
Molecular Biology and Genetics
Statistics of barcoding coverage: Silverstoneia flotator
Public Records: 5
Specimens with Barcodes: 33
Species With Barcodes: 1
Barcode data: Silverstoneia flotator
There are 8 barcode sequences available from BOLD and GenBank. Below is a sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species. See the BOLD taxonomy browser for more complete information about this specimen and other sequences.
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IUCN Red List Assessment
Red List Category
Red List Criteria
Rainforest rocket frog
The rainforest rocket frog (Silverstoneia flotator, formerly Colostethus flotator) is a terrestrial, diurnal frog found in humid lowlands of Costa Rica and Panama. It is generally very common and therefore considered to be of least concern by the IUCN. The taxonomy is in need of a review, as it may consist of a complex of several species.
- Solís, F., et al. 2004. Silverstoneia flotator. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. Downloaded on 28 May 2013.