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Trigonidium bolivari

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA ARTHROPODA INSECTA ORTHOPTERA GRYLLIDAE

Scientific Name: Trigonidium bolivari
Species Authority: (Chopard, 1968)
Common Name(s):
English Seychelles Palm Cricket
Synonym(s):
Metioche bolivari Chopard, 1968

Assessment Information [top]

Red List Category & Criteria: Endangered B1ab(i,ii,iii)+2ab(i,ii,iii) ver 3.1
Year Published: 2012
Date Assessed: 2007-10-27
Assessor(s): Gerlach, J.
Reviewer(s): Hochkirch, A. & Odé, B.
Justification:
This is a restricted range species (area of occupancy historically 173 km², currently probably <20 km²) present in deteriorating habitats.

Geographic Range [top]

Range Description: The species is endemic to the granitic islands of Seychelles (Mahé and Silhouette).
Countries:
Native:
Seychelles (Seychelles (main island group))
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: There is no information available on population size or trends.
Population Trend: Unknown

Habitat and Ecology [top]

Habitat and Ecology: A woodland species found on palm leaves in native forest.
Systems: Terrestrial

Threats [top]

Major Threat(s): The woodland habitats are deteriorating due to invasion by alien plant species (especially Cinnamomum verum). This species is locally abundant on Silhouette but not located on Mahé since 1909.

Conservation Actions [top]

Conservation Actions: The historical Mahé population was present in the Morne Seychellois Natioanl Park, this may not survive. Present in the Silhouette National Park.

Citation: Gerlach, J. 2012. Trigonidium bolivari. The IUCN Red List of Threatened Species. Version 2014.2. <www.iucnredlist.org>. Downloaded on 30 August 2014.
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