Chiasmocleis ventrimaculata, commonly known as the dotted humming frog, is a species of frog in the Microhylidae family. It is found in Bolivia, Brazil, Colombia, Ecuador, and Peru. Its natural habitats are subtropical or tropical moist lowland forests, swamps, and intermittent freshwater marshes.
The frog is known to have a mutualistic relationship with the burrowing tarantula Xenesthis immanis. The tarantula provides the frog protection from predators and a food source from insects feeding on the remains of its prey. The frog's foraging protects the tarantula's eggs from ants. This mutualism between microhylids and large spiders is common and occurs in various parts of the world.
- "Tiny frogs and giant spiders: the best of friends : Tetrapod Zoology". Scienceblogs.com. Archived from the original on 2012-01-10. Retrieved 2012-05-11.
- Coloma, L.A., Ron, S., Monteza, J.I., Angulo, A., Jungfer, K.-H., Castro, F., Rueda, J.V., Reichle, S., De la Riva, I. & Gascon, C. 2004. [http://www.iucnredlist.org/search/details.php/57764/all 2006 IUCN Red List of Threatened Species: Chiasmocleis ventrimaculata (Accessed: March 23, 2012).
- Crocroft, Reginald B.; Hambler, Keith (1989). "Observations on a commensal relationship of the microhylid frog Chiasmocleis ventrimaculata and the burrowing theraphosid spider Xenesthis immanis in southeastern Peru" (PDF). Biotropica. 21 (1): 2–8. doi:10.2307/2388434.
- Data related to Chiasmocleis ventrimaculata at Wikispecies
- Media related to Chiasmocleis ventrimaculata at Wikimedia Commons
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