Pseudobactricia ridleyi (Kirby, 1904a:429)

Ridley's stick insect



Taxonomy & Nomenclature

Synonym/s: Bactricia ridleyi Kirby 1904


Conservation Status


Last record: pre-1905

IUCN RedList status: Extinct





Biology & Ecology




Only known from the male holotype (Lim, 2008).






Original scientific description:

Kirby, W. F. (1904a). Notes on Phasmidæ in the collection of the British Museum (Natural History), South Kensington, with description of new genera and species.—No. II. Ann. Mag. Nat. Hist. (7) 13: 429-449. [First page]


Other references:

Brock. 1995. Malayan Nat. Jour. 49(2):87.

Brock. 1999. Stick and Leaf Insects of Peninsular Malaysia and Singapore 27, fig. 10, 168.

Brock. 1999. Amateur Entomologist 26:27, fig. 15.

Brock, J.A. Marshall, Beccaloni & Harman. 2016. Zootaxa 4179(2):191.

Kiew & Seow-Choen. 2000. Gardenwise 14:24.

Kirby, W. F. (1904b). A synonymic catalogue of Orthoptera. 1. Orthoptera Euplexoptera, Cursoria et Gressoria. (Forficulidae, Hemimeridae, Blattidae, Mantidae, Phasmidae) 1:327

Lim, T. W. (2008a). Pseudobactricia ridleyi. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. ( Downloaded on 26 May 2013.

Lim, T. W. (2008b). Pseudobactricia ridleyi (errata version published in 2016). The IUCN Red List of Threatened Species 2008: e.T135292A98829947. Accessed on 30 June 2022.

Otte & Brock. 2005. Phasmida Species File. Catalog of Stick and Leaf Insects of the world 286.

Seow-Choen. 1999. In Briffett & Chew [Ed.]. State of the natural environment in Singapore 76.

Seow-Choen. 1999[1997]. Gardens´ Bulletin, Singapore 49(2):300.

Seow-Choen. 2000. An illustrated Guide to the Stick and Leaf Insects of Peninsular Malaysia and Singapore 3, pl. 1.

Seow-Choen. 2017. A taxonomic guide to the stick insects of Singapore 6

Seow-Choen, Brock & Seow-En. 1994. Malaysian Naturalist 48(1):8.

Zompro. 2001. Revue suisse de Zoologie 108(1):243.


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