''Kochiana'' is a
monotypic
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispec ...
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...
of Brazilian
tarantulas
Tarantulas comprise a group of large and often hairy spiders of the family Theraphosidae. , 1,040 species have been identified, with 156 genera. The term "tarantula" is usually used to describe members of the family Theraphosidae, although m ...
containing the single species, ''Kochiana brunnipes'' or the dwarf pink leg. It was first described by C. L. Koch in 1841 under the name "Mygale brunnipes",
and was transferred to its own genus in 2008.
, it has only been found in
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 ...
.
Description
They have black
cephalothorax
The cephalothorax, also called prosoma in some groups, is a tagma of various arthropods, comprising the head and the thorax fused together, as distinct from the abdomen behind. (The terms ''prosoma'' and ''opisthosoma'' are equivalent to ''cepha ...
es and abdomens with golden
urticating hairs. The
coxae,
trochanters and
femurs
The femur (; ), or thigh bone, is the proximal bone of the hindlimb in tetrapod vertebrates. The head of the femur articulates with the acetabulum in the pelvic bone forming the hip joint, while the distal part of the femur articulates with t ...
are also black, but the
patellae, tibiae, metatarsi, and
tarsi are reddish light brown.
''K. brunnipes'' males differ from others in the Theraphosinae subfamily by having a long and downwards pointing
embolus
An embolus (; plural emboli; from the Greek ἔμβολος "wedge", "plug") is an unattached mass that travels through the bloodstream and is capable of creating blockages. When an embolus occludes a blood vessel, it is called an embolism or emb ...
with
prolateral accessory keels, and by the ability of the first
metatarsus
The metatarsal bones, or metatarsus, are a group of five long bones in the foot, located between the tarsal bones of the hind- and mid-foot and the phalanges of the toes. Lacking individual names, the metatarsal bones are numbered from the med ...
to fold between the two branches of the
tibial spur.
See also
*
List of Theraphosidae species
This page lists all described genera and species of the spider family Theraphosidae. , the World Spider Catalog accepts 1041 species in 156 genera:
A ''Acanthopelma''
'' Acanthopelma'' F. O. Pickard-Cambridge, 1897
* '' Acanthopelma beccarii'' ...
References
Monotypic Theraphosidae genera
Spiders of Brazil
Theraphosidae
{{Theraphosidae-stub