''Fufius lucasae'' is a

spider Spiders ( order Araneae) are air-breathing arthropods that have eight legs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude silk. They are the largest order of arachnids and rank seventh in total species ...

in the family

Cyrtaucheniidae The wafer trapdoor spiders, family Cyrtaucheniidae, are a widespread family of spiders that lack the thorn-like spines on tarsi and metatarsi I and II (the two outermost leg segments) found in true trapdoor spiders (Ctenizidae). Etymology Th ...

, native to

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

. It was first described in 2004 by Guadanucci and Indicatti. The specific name ''lucasae'' honours Sylvia M. Lucas.

References

Cyrtaucheniidae Spiders of Brazil Spiders described in 2004 {{Mygalomorphae-stub