Cornish Biodiversity Network  -  Supporting Wildlife Recording

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Cornish Red Data (2009)

The descriptive text, below the map, is from the Cornish Red Data Book (2009). The map on this web page depicts the organisms distribution and shows the records made pre-2000 and those made since.

Acanthoxyla inermis - Unarmed Stick-insect

Range & Status

Outside of Cornwall, known from Oreston, Plymouth. There is a colony in a Sussex

garden, which originated from insects collected in Cornwall during the 1999 Total Eclipse. A colony in a nursery at Merriot, Somerset has not been seen for many years and is probably extinct. Nymphs were recorded in Poole during 2006, only a short distance from the home of a known recorder of the naturalised phasmids, but no further sightings have been received. It is also found in south-west Ireland around the Bay of Kenmare.

Regional Distribution

The very localised colonies are now found throughout Cornwall, but mostly in VC1. The strongest colonies are around Truro, Falmouth, and Mevagissey.

Habitat & Ecology

Similar to Acanthoxyla geisovii.


None known.


None known.

Click here to see Aphotoflora images by David Fenwick


I.J. Bennallick, S. Board, C.N. French, P.A. Gainey, C. Neil, R. Parslow, A. Spalding and P.E. Tompsett. eds. 2009. Red Data Book for Cornwall and the Isles of Scilly. 2nd Edition.Croceago Press.

The Cornish Red Data Book Project was led by the Cornwall and Isles of Scilly Federation for Biological Recorders (CISFBR). The full text and species accounts (minus the maps) are available on the CISFBR website.

Cornish Biodiversity Network. 2017.