Carausius scotti Ferrière in Bolívar & Ferrière, 1912

Scott's stick insect, Scott's spiny stick insect



Taxonomy & Nomenclature



Conservation Status

Rediscovered in 1990 (Gerlach et al., 1990; Matyot, 1990a,b)

IUCN RedList status: Critically Endangered



Silhouette Island, Seychelles


Biology & Ecology

It is a phytophagous species that consumes fern (Pteridophyta) species, including Asplenium nidus (Gerlach, 1993; Kueffer & Vos, 2004).



Holotype: NHMUK  844588 (male)



The preserved male holotype can be seen here. A photo of living individuals can be seen in (Gerlach, 2012).



Original scientific description:

Ferrière, C. In: Bolívar [Y Urrutia], I. and Ferrière, C. (1912). Orthoptera, Phasmidae of the Seychelles. Transactions of the Linnean Society, London 15(2): 293-300.


Other references:

Brock. 1993. Phasmid Studies 2(1):20

Brock. 2003. Rearing and studying stick and leaf insects. The Amateur Entomologist Volume 22: 49.

Brock & Büscher. 2022. Stick and leaf-insects of the world, Phasmids 525

Brock, J. A. Marshall, Judith A., Beccaloni, George W. and Harman, Allan J. E. (2016). The types of Phasmida in the Natural History Museum, London, UK. Zootaxa 4179(2): 151-208 [193].

Gerlach, Justin. (1993). The conservation of Silhouette island, Seychelles.  II. Animals. Phelsuma 1: 30-38.

Gerlach, Justin. (2012). Carausius scotti. The IUCN Red List of Threatened Species 2012: e.T199567A2603274. Downloaded on 16 April 2018.

Gerlach. 2018. Seychelles Wildlife News 30:cover

Gerlach, Justin and Haas, F. (2007). The Orthopteroidea of the Seychelles islands. Backhuys Publishers, Leiden.

Gerlach, Justin et al. (1990). Oxford University Silhouette Expedition 1990. Unpublished report.

Henriette, Elvina and Morel, Charles. (2014). Towards interactive keys for identification: the case of the stick insects of Seychelles. Kapisen 17: 13-15

Kueffer, C. and Vos, P. (2004). Case Studies on the Status of Invasive Woody Plant Species in the Western Indian Ocean. 5. Seychelles. Forest Health & Biosecurity Working Papers FBS/4-5E. Forestry Department, Food and Agriculture Organization of the United Nations, Rome, Italy.

Matyot, Pat. (1989). Phasmid Study Group Newsletter 41: 6.

Matyot, Pat. (1990a). Carausius scotti rediscovered. Phasmid Study Group Newsletter 44: 6-7.

Matyot, Pat. (1990b). Observations on Carausius scotti. Phasmid Study Group Newsletter 45: 7.

Matyot. 1992. Phasmid Studies 1(1):19

Matyot, Pat. (1998). The orthopteroids of the Seychelles: a threatened island fauna. Journal of Insect Conservation 2: 235-246.

Senterre, B., Baguette, F. and Chong-Seng, L. (2018). Silhouette Adaptive Conservation Management Plan 2018-2022 using Bioma: a simple MS Access database. Consultancy Report, Island Conservation Society, Victoria, Seychelles, 29 pp. + 97 pp. Annexes + 1 MS Access database.


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