Description
Horrid King Assassin Bug (Psytalla horrida) — Care Sheet
The Horrid King Assassin Bug (Psytalla horrida) is the largest assassin bug species in the world. Instantly recognizable by its bold black and red-orange warning coloration, this species features distinct, formidable spikes on its pronotum. They are highly active, fascinating to watch, and thrive in communal groups, making them a premier display species for invertebrate enthusiasts.
Quick Specifications
- Origin: West Africa (Humid forest edge regions of Togo, Cameroon, and Nigeria)
- Adult Size: Up to 4.5 cm (the largest of all assassin bugs)
- Temperature: 24–28°C
- Humidity: 50–70% (Keep the tank well-ventilated, but maintain a permanently damp substrate corner for egg-laying)
- Difficulty Level: Easy (Very hardy and simple to maintain)
Key Features & Behaviour
- Apex Predators: These pure predators will fearlessly hunt and overpower live insects up to twice their own size, using a potent venom injected via their rigid rostrum to quickly liquefy and consume their target.
- Social Display: Unlike many nocturnal invertebrates, Horrid Kings settle into their enclosures quickly and exhibit highly engaging communal feeding behaviors, remaining visible throughout the day.
- Low Maintenance: They do not require complex misting schedules—a small, shallow water dish and a moist patch of substrate are more than enough to meet their hydration needs.
Enclosure Requirements
- Vertical Space is Vital: A secure, tall/vertical enclosure with excellent ventilation is strictly required. These bugs molt by hanging completely upside down and need downward clearance of at least three times their body length to avoid fatal molting deformities.
- Substrate & Decor: Provide a 3–5 cm layer of coco coir and add several vertical pieces of cork bark or branches to give them essential climbing structures, ambush spots, and molting platforms.
- Hygiene: Always use long tweezers to remove uneaten or dead feeder carcasses to prevent mold growth and mite infestations.
⚠️ Important Safety Warning
- Strictly Hands-Off: This species is strictly for display only and must never be handled. Their defensive bite is exceptionally painful.
- Defensive Spray: When threatened or startled, they can spray their potent venom defensively. Always wear eye protection when opening the enclosure or viewing them from close proximity, as the spray is aimed at eyes and can cause severe pain and temporary irritation.
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