Homoeomma

Homoeomma (eyelike, from Ancient Greek ὅμοιος, like, and ὄμμα, eye) is a genus of South American tarantulas that was first described by Anton Ausserer in 1871.^[5] It is considered a senior synonym of Calopelma,^[3] Butantania,^[2] and of Cyclothoracoides.^[4] These tarantulas are usually quite small and usually burrow a few centimeters under a rock or log.^[6]

Homoeomma
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Chelicerata
Class:	Arachnida
Order:	Araneae
Infraorder:	Mygalomorphae
Family:	Theraphosidae
Genus:	Homoeomma Ausserer, 1871[1]
Type species
H. stradlingi O. Pickard-Cambridge, 1881
Species
13, see text
Synonyms[1]
Butantania Mello-Leitão, 1935[2] Calopelma Chamberlin, 1917[3] Cyclothoracoides Strand, 1929[4] Cyclothorax Mello-Leitão, 1923

Diagnosis

Males of this genus can be distinguished by the tile-like apophysis on the base of the palpal bulb, and the embolus being in an obtuse angle, in relation to the bulb. Males also have a flexion of the metatarsus 1, which is between the branches of the tibial apophysis. Females can be distinguished by the spermatheca morphology, which lacks constriction in the apex.^[6]

Species

As of August 2022^[update] it contains thirteen species, found in South America:^[1]

• Homoeomma brasilianum (Chamberlin, 1917) – Brazil
• Homoeomma chilense Montenegro & Aguilera, 2018 – Chile
• Homoeomma elegans (Gerschman & Schiapelli, 1958) – Argentina
• Homoeomma familiare Bertkau, 1880 – Brazil
• Homoeomma hirsutum (Mello-Leitão, 1935) – Brazil
• Homoeomma montanum (Mello-Leitão, 1923) – Brazil
• Homoeomma nigrum (Walckenaer, 1837) – Brazil
• Homoeomma orellanai Montenegro & Aguilera, 2018 – Chile
• Homoeomma peruvianum (Chamberlin, 1916) – Peru
• Homoeomma strabo (Simon, 1892) – Colombia, Brazil
• Homoeomma stradlingi O. Pickard-Cambridge, 1881 (type) – Brazil
• Homoeomma uruguayense (Mello-Leitão, 1946) – Uruguay, Argentina
• Homoeomma villosum (Keyserling, 1891) – Brazil

In synonymy

• H. bicolor Sherwood, Gabriel & Longhorn, 2018 = Homoeomma chilense Montenegro & Aguilera, 2018
• H. cyclothorax (Mello-Leitão, 1923) = Homoeomma montanum (Mello-Leitão, 1923)
• H. moreirae (Mello-Leitão, 1923) = Homoeomma brasilianum (Chamberlin, 1917)
• H. regina (Chamberlin, 1917) = Homoeomma strabo (Simon, 1892)
• H. serratum (Gerschman & Schiapelli, 1958) = Homoeomma uruguayense (Mello-Leitão, 1946)

Transferred to other genera

• Homoeomma alcirae Gerschman & Schiapelli, 1954 → Plesiopelma alcirae
• Homoeomma humile Vellard, 1924 → Bumba humilis
• Homoeomma pictum (Pocock, 1903) → Anqasha picta'
• Homoeomma simoni Soares & Camargo, 1948 → Catanduba simoni

See also

• List of Theraphosidae species