Gonatodes hasemani
Silhouette: Jose Carlos Arenas-Monroy · PhyloPic
In 3 days ~30% in a week ~50%
Haseman's gecko (Gonatodes hasemani) is a species of lizard in the family Sphaerodactylidae. The species is indigenous to northern South America. The specific name, hasemani, is in honor of American ichthyologist John Diederich Haseman, who collected specimens in South America (1907–1910) for Carnegie Museum (now Carnegie Museum of Natural History).
G. hasemani is native to northern Bolivia (Pando, Beni), northern Brazil (Acre, Amazonas, Mato Grosso, Pará, Rondônia), southeastern Colombia (Vaupés), and eastern Peru. The preferred natural habitat of G. hasemani is forest.
G. hasemani may attain a snout-to-vent length (SVL) of 3 cm (1.2 in). G. hasemani is oviparous. G. hasemani is a host for parasitic worms of the genera Mesocestoides and Skrjabinelazia. Amaral A ("1932") (1933). "Estudos sobre Lacertilios neotropicos. I. Novos gêneros e espécies de lagartos do Brasil ". Memórias do Instituto Butantan 7: 51–75. (Gonatodes spinulosus, new species, p. 56). (in Portuguese).
Ávila-Pires TCS (1995). "Lizards of Brazilian Amazonia (Reptilia: Squamata... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Manu National Park | 🇵🇪 Peru |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Haseman's Gecko sighting in Manu National Park on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 36th most-seen of the 56 reptiles we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
January
In that month about 20% of wildlife watchers report a Haseman's Gecko in Manu National Park on a given day, against under 5% in April–July and September, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Haseman's Gecko sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Only Manu National Park, in our data
Manu National Park is the only park on Wallace's Line with enough records to rate Haseman's Gecko sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Haseman's Gecko is recorded against all the reptiles logged in Manu National Park (9 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
