genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...
of
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 ...
that was first described by Eugène Louis Simon in 1892. They have close to fifty
lanceolate
The following is a list of terms which are used to describe leaf plant morphology, morphology in the description and taxonomy (biology), taxonomy of plants. Leaves may be simple (a single leaf blade or lamina) or compound (with several leaflet (bo ...
stridulatory
Stridulation is the act of producing sound by rubbing together certain body parts. This behavior is mostly associated with insects, but other animals are known to do this as well, such as a number of species of fish, snakes and spiders. The mech ...
spines on the
chelicera
The chelicerae () are the mouthparts of the subphylum Chelicerata, an arthropod group that includes arachnids, horseshoe crabs, and sea spiders. Commonly referred to as "jaws", chelicerae may be shaped as either articulated fangs, or similarly ...
e, known as "strikers". The male
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 ...
has a single strong retrolateral keel. It is considered a
senior synonym
The Botanical and Zoological Codes of nomenclature treat the concept of synonymy differently.
* In botanical nomenclature, a synonym is a scientific name that applies to a taxon that (now) goes by a different scientific name. For example, Linnae ...
of ''Chilocosmia'' and ''Selenobrachys''.
Species
it contains four species, three from the
Philippines
The Philippines (; fil, Pilipinas, links=no), officially the Republic of the Philippines ( fil, Republika ng Pilipinas, links=no),
* bik, Republika kan Filipinas
* ceb, Republika sa Pilipinas
* cbk, República de Filipinas
* hil, Republ ...
and one from
Papua New Guinea
Papua New Guinea (abbreviated PNG; , ; tpi, Papua Niugini; ho, Papua Niu Gini), officially the Independent State of Papua New Guinea ( tpi, Independen Stet bilong Papua Niugini; ho, Independen Stet bilong Papua Niu Gini), is a country i ...
:
*''
Orphnaecus dichromatus
''Orphnaecus dichromatus'' is a species of selenocosmiine tarantula, in the Phlogiellini tribe.Schmidt & von Wirth, 1992) – New Guinea
*''
Orphnaecus kwebaburdeos
''Orphnaecus'' is a genus of tarantulas that was first described by Eugène Louis Simon in 1892. They have close to fifty lanceolate stridulatory spines on the chelicerae, known as "strikers". The male embolus has a single strong retrolateral ke ...
Orphnaecus pellitus
''Orphnaecus pellitus'' is a species of the family Theraphosidae.
Characteristics
''O. pellitus'' has a dark brown cephalothorax
The cephalothorax, also called prosoma in some groups, is a tagma of various arthropods, comprising the head and ...
Orphnaecus philippinus
''Orphnaecus philippinus'', known as the Philippine Tangerine, Philippine Orange, or Neon Orange Tarantula is a species of tarantula. It is native to the Philippines. It was described in 1999, by Gunter Schmidt, as ''Selenobrachys philippinus'', ...