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Ephebopus cyanognathus
A terrestrial tarantula endemic to French Guiana, notable for metallic blue chelicerae and yellow rings on the legs. A small species at about 14cm leg span, adults burrow while spiderlings are semi-arboreal.
Ephebopus cyanognathus was described in 2000 by West and Marshall and is endemic to French Guiana. The specific name is Latinised Greek for blue jaw and refers to the blue setae on the basal segments of the chelicerae. Adults are brown to blackish brown; females have deep blue chelicerae while males are purplish, and both retain yellow rings between the femur and patella of every leg. Juveniles are brighter still, with a golden-green abdomen and pinkish legs. It is recorded from the Tresor nature reserve, the type locality, as well as Roura, Kourou and Saul, digging burrows in year-round damp clay and lateritic soils on shaded steep slopes at 200-300m. In captivity an enclosure of about 30 by 30 by 35cm with a substrate layer of ten-odd centimetres suits it, at 23-27 C and 70-80 percent humidity. It prefers to flee but will flick hairs or bite if cornered.
Source: Wikipedia (CC BY-SA 4.0)
The Blue Fang Tarantula lives Females 12-15 years, males 3-4 years.
The Blue Fang Tarantula grows to Body 4-5.5cm, leg span 11-14cm.
Body length is 4-5.5cm and leg span up to 14cm, making it small for a tarantula.
The ideal temperature for the Blue Fang Tarantula is 23〜27℃. Ideal humidity is 70〜80%.
Origin
Endemic to French Guiana, in upland rainforest at 200-300m elevation
Sources: Polish Wikipedia: Ephebopus cyanognathus (husbandry) / German Wikipedia: Ephebopus cyanognathus / Wikipedia: Ephebopus cyanognathus / GBIF
Edited & verified by: BreederDirect editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
Accepted name: Ephebopus cyanognathus West & Marshall, 2000
Authority databases: GBIF
Nomenclature follows global taxonomic authority databases.
Sources: CITES Appendices (species not listed)
Regulations may change. Always verify the latest information with the relevant authorities.
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Lifespan
Females 12-15 years, males 3-4 years
Size
Body 4-5.5cm, leg span 11-14cm
Temperature
23〜27℃
Humidity
70〜80%
Active live insects such as crickets and roaches
Aim for 23-27 C and 70-80 percent humidity. Its habitat is upland forest with year-round damp soil, so do not let the substrate dry out completely.
Use an enclosure of about 30 by 30 by 35cm with ten-odd centimetres or more of substrate so it can burrow. Add a hide and leave the finished burrow alone.
It prefers active live prey such as crickets and roaches, and responds best when food is placed near the burrow entrance.
The venom is considered relatively weak, but the spider is fast and defensive; if cornered it flicks the urticating hairs on its palpal femora or bites.
Spiderlings are semi-arboreal and may web up high, so watch enclosure height and lid gaps. Its speed makes it unsuitable for beginners.
Intermediate. This is an intermediate-level species. Some prior experience and knowledge of environmental management are recommended.
The ideal temperature for Blue Fang Tarantula is 23〜27℃. Recommended humidity is 70〜80%. Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Blue Fang Tarantula is Females 12-15 years, males 3-4 years. With proper care and nutrition, they can live a long and healthy life.
Blue Fang Tarantula typically reaches Body 4-5.5cm, leg span 11-14cm as an adult. Size may vary depending on care conditions and individual genetics.
Blue Fang Tarantula feeds on: Active live insects such as crickets and roaches. Aim for a balanced diet with appropriate feeding frequency.
The price of Blue Fang Tarantula varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: September 16, 2026