''Brasilionata'' is a genus of

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 ...

ian spiders first described by Wunderlich in 1995. It is represented by a single species, ''B. arborense''. The defining characteristics of this genus include a homogeneous color pattern on the back of the

abdomen The abdomen (colloquially called the belly, tummy, midriff, tucky or stomach) is the part of the body between the thorax (chest) and pelvis, in humans and in other vertebrates. The abdomen is the front part of the abdominal segment of the to ...

seta In biology, setae (singular seta ; from the Latin word for " bristle") are any of a number of different bristle- or hair-like structures on living organisms. Animal setae Protostomes Annelid setae are stiff bristles present on the body. ...

e on the cymbial fold the same size as other setae, a space between the anterior median eyes, and a pointed switch on the end of the

palpal bulb The two palpal bulbs – also known as palpal organs and genital bulbs – are the copulatory organs of a male spider. They are borne on the last segment of the pedipalps (the front "limbs" of a spider), giving the spider an appearance often desc ...

similar to that of ''

Microdipoena ''Microdipoena'' is a cosmopolitan genus of dwarf cobweb weaver spiders in the family Mysmenidae Mysmenidae is a spider family with about 135 described species in thirteen genera. The family is one of the least well known of the orb-weaving spi ...

''. Only two specimens have been identified, one in 1995 and another in 2015.

References

Spiders of Brazil Mysmenidae Monotypic Araneomorphae genera {{Araneomorphae-stub