Viperidae
Painted Lancehead
VenomousBothrops diporus
6 photographs of the Painted Lancehead. © Agustín Zarco.
The Painted Lancehead (Bothrops diporus) is a venomous snake in the Viperidae family, recorded in 4 countries.
If you are bitten
This is a venomous snake. Treat any bite as a medical emergency: stay calm, keep the bitten limb still and roughly level with the heart, remove rings and tight clothing, and get to emergency care immediately. Do not apply a tourniquet, cut the wound, apply ice, or try to suck out venom. Call your local emergency number or poison center.
- Family
- Viperidae
- Danger
- high
About the Painted Lancehead
Bothrops diporus, also known in Portuguese as Bocuda, Cabeça-de-Capanga, Jararaca-do-Chaco, Jararaca-do-Rabo-Branco, Jararaca-Pintada, Jararaca-Pintada-Argentina and Jararaca-Pintada-do-Sul, is a species of viper from the forests of Argentina, Brazil, Paraguay and Bolivia. As with all vipers, it is venomous.
Description
Bothrops diporus is identifiable by its dark pattern, which consists mainly of fused dark triangular markings on a lighter base colour, similar to that of B. ayerbei with the two rounded dark blotches at the base of each triangle.
Bothrops diporus have been sighted at a length of around 70–80 cm (28–31 in).
Diet
Bothrops diporus has been sighted partaking in ophiophagy of Chironius maculoventris and Epictia albipuncta, however it is known for its largely mammalian diet, including rodents, frogs and lizards.
Venom
Bothrops diporus is one of the main causes of snakebite in Argentina: between 1960 and 1975, according to Esteso (1985), 80% of the approximately 500 cases reported each year were attributed to this species.
Habitat
Bothrops diporus has been found in the Vermejo River region, on the boundary of Paraguay and Argentina.
Reproduction
Bothrops diporus reproduces sexually and is ovoviviparous.
Adapted from Wikipedia, available under CC BY-SA.
Frequently asked: Painted Lancehead
- Is the Painted Lancehead venomous?
- Yes. The Painted Lancehead (Bothrops diporus) is venomous and belongs to the Viperidae family (viper). Its bite is considered high risk to people. Treat any bite as a medical emergency.
- Is the Painted Lancehead poisonous?
- Snakes are venomous, not poisonous. "Poisonous" means harmful to eat or touch; "venomous" means injecting toxins through a bite. The Painted Lancehead is venomous, delivering venom through a bite.
- Is the Painted Lancehead dangerous?
- This is a venomous snake. Treat any bite as a medical emergency: stay calm, keep the bitten limb still and roughly level with the heart, remove rings and tight clothing, and get to emergency care immediately. Do not apply a tourniquet, cut the wound, apply ice, or try to suck out venom. Call your local emergency number or poison center.
- Where does the Painted Lancehead live?
- The Painted Lancehead has verified records in 4 countries, including Argentina, Brazil, Paraguay. See the distribution section below for its full range.
- What does the Painted Lancehead eat?
- Bothrops diporus has been sighted partaking in ophiophagy of Chironius maculoventris and Epictia albipuncta, however it is known for its largely mammalian diet, including rodents, frogs and lizards.
If you are bitten by the Painted Lancehead
Do
- Get away from the snake and stay calm. Most bites worsen when people panic or try again to handle the snake.
- Call 911 or Poison Control (1-800-222-1222) right away. Antivenom works best when given early.
- Note the time of the bite and, from a safe distance, the snake's color and pattern, a phone photo is enough. Do not chase it.
- Keep the bitten limb still and at roughly heart level. Sit or lie down and limit movement.
- Remove rings, watches, and tight clothing near the bite before swelling starts.
- Gently wash the bite with soap and water and cover it with a clean, dry dressing.
Do not
- Do not cut the wound or try to suck out the venom.
- Do not apply a tourniquet or ice.
- Do not drink alcohol or caffeine.
- Do not take aspirin or ibuprofen, they can worsen bleeding. Acetaminophen is safer for pain.
- Do not try to catch or kill the snake. A dead snake can still bite by reflex.
First-aid guidance adapted from the U.S. Centers for Disease Control and Prevention (CDC NIOSH), Venomous Snakes. Educational only; always follow the instructions of emergency responders.
Where it is found
More Viperidae snakes
Classification
How scientists group this snake, from the broadest category down to the exact species. Each step narrows to its closest relatives.
Keep learning
- Are Snakes Dangerous? The Real Risk, in PerspectiveMost snakes are harmless and avoid people. Here is the honest picture of snakebite risk worldwide and how to lower your own.
- Snakebite First Aid: What to Do (and What Never to Do)A clear, CDC-based guide to snakebite first aid: the steps that help, the popular myths that hurt, and how to tell a serious bite from a minor one.
- Venomous vs Nonvenomous: How to Tell the DifferenceThe folk rules for telling venomous snakes apart, where each one fails, and why location-based identification beats guessing by sight.
- What to Do If You Find a SnakeFound a snake at home or on a trail? Here is how to stay calm, give it space, identify it safely, and know when to call a professional.
Distribution from GBIF & iNaturalist. Venom status per CDC. Background: Wikipedia. Informational only. Never handle a snake to identify it.