Bothrocophias lojanus
Silhouette: Steven Traver · PhyloPic
In 3 days ~30% in a week ~60%
Bothrocophias lojanus, also known commonly as the Lojan lancehead in English, and macanchi or macaucho in Spanish, is a species of venomous pit viper in the subfamily Crotalinae of the family Viperidae. The species is native to northwestern South America.
B. lojanus is found in Ecuador and Peru. The preferred natural habitat of B. lojanus is forest at altitudes of 1,900–3,678 m (6,234–12,067 ft). B. lojanus preys upon lizards and small rodents. B. lojanus is viviparous. Carrasco, P. A., Koch, C., Grazziotin, F. G., Venegas, P. J., Chaparro, J. C., Scrocchi, G. J., Salazar-Valenzuela, D., Leynaud, G. C., & Mattoni, C. I. (2023). Total-evidence phylogeny and evolutionary morphology of New World Pitvipers (serpentes: Viperidae: Crotalinae). Cladistics, 39(2), 71–100. https://doi.org/10.1111/cla.12522
Carrasco PA, Venegas PJ, Valencia JH (2016). "First confirmed records of the endangered Andean pitviper Bothrops lojanus Parker, 1930 (Viperidae: Crotalinae) from Peru". Herpetology Notes 9: 297–301. Hamdan B, Guedes TB, Carrasco PA, Melville J (2019). "A complex biogeographic history... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Podocarpus National Park | 🇪🇨 Ecuador |
More parks will be added in future updates.
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Amaru | 🇪🇨 Ecuador |
With luck
About 10% of wildlife watchers report a Lojan Lancehead sighting in Podocarpus National Park on a given day, based on 10 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 7th most-seen of the 7 reptiles we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
May
In that month about 30% of wildlife watchers report a Lojan Lancehead in Podocarpus National Park on a given day, against under 5% in January, March–April and June–September, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Lojan Lancehead sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Podocarpus National Park, in our data
Podocarpus National Park is the only park on Wallace's Line with enough records to rate Lojan Lancehead sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Lojan Lancehead is recorded against all the reptiles logged in Podocarpus National Park (10 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.
