Mecodema punctellum

Mecodema punctellum
Conservation status
Extinct  (IUCN 2.3)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Coleoptera
Suborder:	Adephaga
Family:	Carabidae
Genus:	Mecodema
Species:	†M. punctellum
Binomial name
†Mecodema punctellum Broun, 1921

Mecodema punctellum is a presumed-extinct species of ground beetle of the family Carabidae, endemic to Stephens Island in New Zealand.

Description

Mecodema punctellum was a large black flightless ground beetle which reached a length of 38.5 millimetres (1.52 in) and a width of 11.7 millimetres (0.46 in).

Habitat and biology

Nothing is known about its habitat, but it is assumed that it occurred in wet forests and sought shelter under large logs. It was a predator of snails.

Extinction

Mecodema punctellum was last seen in 1931, and after surveys in 1961, 1971, 1974/5, 1976, 1981, 1990, 1996 on Stephens Island, and 1997 on D'Urville Island failed, it is now considered to be extinct. The cause of its extinction was probably habitat destruction, because after the clearing of forest there were no large logs remaining on Stephens Island.

References and external links

1. World Conservation Monitoring Centre (1996). "Mecodema punctellum". The IUCN Red List of Threatened Species. 1996. IUCN: e.T12922A3398669. doi:10.2305/IUCN.UK.1996.RLTS.T12922A3398669.en. Retrieved 9 January 2018.

• Fauna of New Zealand Series: Mecodema punctellum
• Britton (1949) description and Image of Mecodema punctellum