Anostostomatidae is a family of
insect
Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs ...
s in the order
Orthoptera
Orthoptera () is an order of insects that comprises the grasshoppers, locusts, and crickets, including closely related insects, such as the bush crickets or katydids and wētā. The order is subdivided into two suborders: Caelifera – grass ...
, widely distributed in the southern hemisphere. It is named Mimnermidae or Henicidae in some taxonomies, and common names include ''king crickets'' in
South Africa
South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring count ...
and ''wētā'' in
New Zealand
New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 List of islands of New Zealand, smaller islands. It is the ...
(although not all
wētā
Wētā (also spelt weta) is the common name for a group of about 100 insect species in the families Anostostomatidae and Rhaphidophoridae endemic to New Zealand. They are giant flightless crickets, and some are among the heaviest insects in th ...
are in Anostostomatidae). Prominent members include the
Parktown prawn
The Parktown prawn, African king cricket or tusked king cricket (''Libanasidus vittatus'') is a species of king cricket endemic to Southern Africa. It is unrelated to prawns, '' Libanasidus'' being insects in the order Orthoptera – crick ...
of South Africa, and the
giant wētā of New Zealand. The distribution of this family reflects a common ancestry before the fragmenting of
Gondwana
Gondwana () was a large landmass, often referred to as a supercontinent, that formed during the late Neoproterozoic (about 550 million years ago) and began to break up during the Jurassic period (about 180 million years ago). The final st ...
.
General characteristics
By virtue of their ability to cope with variations in temperature, members of the family Anostostomatidae can be found in a variety of environments including alpine, forests, grasslands, shrub lands and urban gardens. The family is widely distributed across southern hemisphere lands including South America, Australia, South Africa and New Zealand. They are
nocturnal
Nocturnality is an ethology, animal behavior characterized by being active during the night and sleeping during the day. The common adjective is "nocturnal", versus diurnality, diurnal meaning the opposite.
Nocturnal creatures generally have ...
and many are flightless although several flying species exist in Australia. The diet is diverse, rarely consisting of leaves, and more commonly a combination of other insects, fungi, dead animals, and fruit. An Australian king cricket can overpower and eat
funnel-web spiders.
Taxonomy and evolution
At least one Cretaceous fossil of an anostostomatid-like cricket is known from Australia but has not been described. The modern distribution of this family in the southern hemisphere has led to speculation that members of this group owe their distribution to the breakup of the ancient supercontinent Gondwana. This may be the case but evidence for the large scale if not total submergence of continental crust in the New Zealand and New Caledonian region in the Oligocene, indicates the possibility that wētā have arrived in these locations since re-emergence of land. The fact that anostostomatid crickets also occur on some Japanese islands supports this possibility.
Subfamilies and Genera
The ''Orthoptera Species File'' lists the following;
Anabropsinae
Auth.: Rentz & Weissman, 1973 – Americas, Africa, India, E. Asia, Australasia
* tribe
Anabropsini Rentz & Weissman, 1973
** ''
Anabropsis'' Rehn, 1901 (includes subgenera ''
Paterdecolyus'' Griffini, 1913, ''
Apteranabropsis'' and ''
Pteranabropsis'' Gorochov, 1988)
** ''
Exogryllacris'' Willemse, 1963: monotypic ''E. ornata'' Willemse, 1963 - Australia
** ''
Melanabropsis'' Wang & Liu, 2020 - China, Japan
* tribe Brachyporini Gorochov, 2001 - Southern Africa, Australia
** ''
Brachyporus'' Brunner von Wattenwyl, 1888
** ''
Penalva'' Walker, 1870
Anostostomatinae
Auth.: Saussure, 1859 – Africa (including Madagascar), Australia, New Zealand
* ''
Anostostoma''
* ''
Apotetamenus''
* ''
Bochus''
* ''
Borborothis''
* ''
Carcinopsis''
* ''
Gryllotaurus''
* ''
Henicus'' Gray, 1837
* ''
Libanasidus'', king crickets
* ''
Motuweta'', tusked wētā
* ''
Nasidius'' Stål, 1876
* ''
Onosandridus''
* ''
Onosandrus''
* ''
Spizaphilus''
Cratomelinae
Auth.: Brunner von Wattenwyl, 1888 – South America
* ''
Cratomelus'' Blanchard, 1851
Deinacridinae
Auth.: Karny, 1932 – New Zealand
* ''
Deinacrida'', giant wētā
* ''
Hemideina'', tree wētā
Leiomelinae
Auth.: Gorochov, 2001 – S. America
* ''
Leiomelus
''Leiomelus'' is a genus of king crickets in the family Anostostomatidae, endemic to Chile.
Species
* '' Leiomelus armiger'' Ander, 1939
* '' Leiomelus brunneifrons'' Ander, 1936
* '' Leiomelus capito'' (Germain, 1903)
* '' Leiomelus dentic ...
'' Ander, 1936
Lezininae
Auth.: Karny, 1932 – N. Africa, Middle East
* ''
Lezina'' Walker, 1869
Lutosinae
Auth.: Gorochov, 1988 – Central & S. America, Africa, PNG
* ''
Apotetamenus'' Brunner von Wattenwyl, 1888
* ''
Hydrolutos'' Issa & Jaffe, 1999
* ''
Libanasa'' Walker, 1869
* ''
Licodia'' Walker, 1869
* ''
Lutosa'' Walker, 1869
* ''
Neolutosa'' Gorochov, 2001
* ''
Papuaistus'' Griffini, 1911
* ''
Rhumosa'' Hugel & Desutter-Grandcolas, 2018
Subfamily not assigned
* tribe Glaphyrosomatini Rentz & Weissman, 1973
** ''
Cnemotettix'' Caudell, 1916
** ''
Glaphyrosoma'' Brunner von Wattenwyl, 1888
* ''
incertae sedis
' () or ''problematica'' is a term used for a taxonomic group where its broader relationships are unknown or undefined. Alternatively, such groups are frequently referred to as "enigmatic taxa". In the system of open nomenclature, uncertain ...
''
** ''
Aistus'' Brunner von Wattenwyl, 1888
** ''
Anisoura'' Ander, 1932 – monotypic Northland tusked wētā: ''A. nicobarica'' Ander, 1932
** ''
Coccinellomima'' Karny, 1932 – monotypic ''C. shelfordi'' Karny, 1932
** ''
Dolichochaeta'' Philippi, 1863 – monotypic ''D. longicornis'' Philippi, 1863
** ''
Gryllacropsis'' Brunner von Wattenwyl, 1888 – monotypic (India) ''G. magniceps'' (Walker, 1870)
** ''
Hemiandrus
''Hemiandrus'' is a genus of wētā in the family Anostostomatidae. In New Zealand they are known as ground wētā due to their burrowing lifestyle. ''Hemiandrus'' wētā are nocturnal, and reside in these burrows during the day. Ground wētā s ...
'' Ander, 1938 - ground wētā
** ''
Hypocophoides'' Karny, 1930
** ''
Hypocophus'' Brunner von Wattenwyl, 1888
** ''
Leponosandrus'' Gorochov, 2001 – monotypic ''L. lepismoides'' (Walker, 1871)
** ''
Transaevum'' Johns, 1997 – monotypic ''T. laudatum'' Johns, 1997
King crickets of South Africa
The best-known species is the
Parktown prawn
The Parktown prawn, African king cricket or tusked king cricket (''Libanasidus vittatus'') is a species of king cricket endemic to Southern Africa. It is unrelated to prawns, '' Libanasidus'' being insects in the order Orthoptera – crick ...
, not to be confused with the well-known
''Koringkrieke'' or
armoured ground cricket
The Bradyporinae are a subfamily in the family Tettigoniidae (bush crickets or katydids), based on the type genus '' Bradyporus''. First described as a family, "Bradyporidae" (Burmeister, H., 1838), the first use as Bradyporinae was by Brunner v ...
s, which never have been in the family Anostostomatidae.
''
Henicus monstrosus'' is a nocturnal anostostomatid. The males are unusual in their anatomy; their heads are disproportionately large and bear forward-directed prongs. They have extremely long, curved
mandible
In anatomy, the mandible, lower jaw or jawbone is the largest, strongest and lowest bone in the human facial skeleton. It forms the lower jaw and holds the lower teeth in place. The mandible sits beneath the maxilla. It is the only movable bon ...
s that are functional, but seem to play no part in the eating process.
[''African Insect Life'' - SH Skaife (Longmans Green & Co,1953)]
Wētā of New Zealand
Five genera of New Zealand
wētā
Wētā (also spelt weta) is the common name for a group of about 100 insect species in the families Anostostomatidae and Rhaphidophoridae endemic to New Zealand. They are giant flightless crickets, and some are among the heaviest insects in th ...
are part of the family Anostostomatidae:
*
Giant wētā (''Deinacrida'')
*
Ground wētā (''Hemiandrus'')
*
Northland tusked wētā (''Anisoura'')
*
Tree wētā
Tree wētā are wētā in the genus ''Hemideina'' of the family Anostostomatidae. The genus is endemic to New Zealand. There are seven species within the genus ''Hemideina'', found throughout the country except lowland Otago and Southland. Bec ...
(''Hemideina'')
*
Tusked wētā (''Motuweta'')
The cave wētā species belong to a different family, the
Rhaphidophoridae
The orthopteran family Rhaphidophoridae of the suborder Ensifera has a worldwide distribution. Common names for these insects include cave wētā, cave crickets, camelback crickets, camel crickets, Hogan bugs, spider crickets (sometimes shortene ...
.
Literature
*
* 1997: The Gondwanaland weta: family Anostostomatidae (formerly in Stenopelmatidae, Henicidae or Mimnermidae): nomenclatural problems, world checklist, new genera and species. ''Journal of Orthoptera Research'', 6: 125–138. ,
References
External links
Family Anostostomatidae Saussure, 1859at Orthoptera Species File Online
{{Taxonbar, from=Q675845
Orthoptera families