Ornithoctoninae
Encyclopedia
Ornithoctoninae, also known as earth tigers, are a subfamily of old-world tarantula
Tarantula
Tarantulas comprise a group of often hairy and often very large arachnids belonging to the family Theraphosidae, of which approximately 900 species have been identified. Some members of the same Suborder may also be called "tarantulas" in the common parlance. This article will restrict itself to...

s, which were first erected in 1895 by Reginald Innes Pocock
Reginald Innes Pocock
Reginald Innes Pocock F.R.S. was a British zoologist.Pocock was born in Clifton, Bristol, the fourth son of Rev. Nicholas Pocock and Edith Prichard. He began showing interest in natural history at St. Edward's School, Oxford. He received tutoring in zoology from Sir Edward Poulton, and was allowed...

 on basis of the genotype Ornithoctonus andersoni described in 1892 from former Burma, now Myanmar.

The Ornithoctoninae is a theraphosid sub-family, which are widely distributed in Asia from Myanmar to South China in the north and as far as to Halmahera in the Indonesian archipelago in the south, and in all the ranges in between. Most species in the sub-family live fossorially in burrows, though there are several species which are living arboreally in trees. They are known as defensive spiders; when disturbed they will quickly retreat into their burrows or dig themselves into the soil. When neither is a possility, they will assume a defensive posture. When provoked, they will strike the aggressor repeatedly with the anterior legs; if the aggressor does not retreat these spiders has been known to bite. Though not deadly, the effects of the venom can be very unpleasant including pain, swelling and arthritis like stiffness in the joints of the extremity affected.

The theraphosid subfamily Ornithoctoninae is defined by the following combination of characters. Presence of retrolateral scopula of filiform setae on the cheliceral base. a small row of larger filiform paddle setae retrolaterally ventro-basally in connection to the retrolateral cheliceral scopula. Arrangement of stridulatory spines prolaterally on maxilla. The character of retrolateral scopula of filiform setae on the cheliceral base is shared by the African subfamily Harpactirinae, but the Ornithoctoninae can be distinguished from the Harpactirinae by the geographic distribution range and the presence of the other characters mentioned, which are lacking in the Harpactirinae.

Care of Ornithoctoninae kept as pets

Specimens from the genera Haplopelma
Haplopelma
Haplopelma is a genus of old-world tarantula found in Southeast Asia. The range of this genus includes Myanmar, southeastern China, Cambodia, Thailand, Vietnam, Malaysia, Singapore, and Borneo.- Description :...

, Cyriopagopus, and Ornithoctonus
Ornithoctonus
Ornithoctonus is a genus of old-world tarantulas in the family Theraphosidae.-References: : , version 8.5. American Museum of Natural History....

are frequently kept as pets. The most commonly kept species are: Haplopelma albostriatum, H. hainanum, H. lividum, H. longipes, H. minax, H. schmidti, Ornithoctonus aureotibialis and Cyriopagopus schioedtei. More species are kept and new species enters the hobby every now and then, but most of this material needs to be properly identified or described.

Haplopelma and Ornithoctonus are burrow-dwellers. A high soil level (at least 15 cm, or 6") is necessary for them to be able to successfully dig burrows. This behavior is described by von Wirth and Huber in the "Haplopelma-tanks" (2002, 2004), which also recommends frequently watering the cage. Alternatively, one can create a "fauna box" by filling up a cage (as high as possible, up to a few centimeters below the top) with potting soil, one can place (as high as possible) a "fauna box", which one fills up with potting soil, coconut compost, or a peat moss mixture. However this method is less advantageous than the method recommended in the Haplopelma Spezialbecken. Temperatures of 23°-25°C are sufficient.

One should accommodate Cyriopagopus in a terrarium for tree-dwellers, but one should also include a high soil level, since the animals do like to dig into the soil, especially as juveniles.

Genera and species of Ornithoctoninae

A list of known species in Ornithoctoninae, sorted by genera
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

:

Citharognathus

Citharognathus Pocock, 1895
  • Citharognathus hosei Pocock, 1895 (Borneo)
  • Citharognathus tongmianensis Zhu, Li & Song, 2002 (China)

Cyriopagopus

Cyriopagopus Simon, 1887
  • Cyriopagopus dromeus (Chamberlin, 1917) (Philippines)
  • Cyriopagopus paganus Simon, 1887 (Myanmar)
  • Cyriopagopus schioedtei (Thorell, 1891) (Malaysia)
  • Cyriopagopus horsetti??

Haplopelma

Haplopelma
Haplopelma
Haplopelma is a genus of old-world tarantula found in Southeast Asia. The range of this genus includes Myanmar, southeastern China, Cambodia, Thailand, Vietnam, Malaysia, Singapore, and Borneo.- Description :...

Simon, 1892
  • Haplopelma albostriatum
    Haplopelma albostriatum
    Haplopelma albostriatum is a moderately large terrestrial tarantula species from Thailand, Cambodia and Malaysia which spends most of its time in a burrow. This species's name comes from the Latin Greek prefix albo, meaning white, and the Latin word , meaning lines or striped...

    (Simon, 1886) (Myanmar, Thailand, Cambodia)
  • Haplopelma doriae (Thorell, 1890) (Borneo)
  • Haplopelma hainanum (Liang et al., 1999) (China), Chinese bird spider, Black earth tiger
  • Haplopelma huwenum (Wang, Peng & Xie, 1993) (China), Chinese bird spider, Golden earth tiger
  • Haplopelma lividum Smith, 1996 (Myanmar), Cobalt blue tarantula
  • Haplopelma longipes von Wirth & Striffler, 2005 (Thailand, Cambodia)
  • Haplopelma minax (Thorell, 1897) (Myanmar, Thailand)
  • Haplopelma robustum Strand, 1907 (Singapore), Malaysian Blue-Femur Earth Tiger
  • Haplopelma salangense (Strand, 1907) (Malaysia)
  • Haplopelma schmidti von Wirth, 1991 (Vietnam), Chinese bird spider
  • Haplopelma vonwirthi Schmidt, 2005 (Southeast Asia)

Lampropelma

Lampropelma Simon, 1892
  • Lampropelma nigerrimum Simon, 1892 (Indonesia)
  • Lampropelma violaceopes Abraham, 1924 (Malaysia, Singapore)

Ornithoctonus

Ornithoctonus
Ornithoctonus
Ornithoctonus is a genus of old-world tarantulas in the family Theraphosidae.-References: : , version 8.5. American Museum of Natural History....

Pocock, 1892
  • Ornithoctonus andersoni Pocock, 1892 (Myanmar)
  • Ornithoctonus aureotibialis von Wirth & Striffler, 2005 (Thailand)
  • Ornithoctonus costalis (Schmidt, 1998) (Thailand)

Phormingochilus

Phormingochilus Pocock, 1895
  • Phormingochilus everetti Pocock, 1895 (Borneo)
  • Phormingochilus fuchsi Strand, 1906 (Sumatra)
  • Phormingochilus tigrinus Pocock, 1895 (Borneo)

External links

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