Abacetus alluaudi

Abacetus alluaudi is a species of ground beetle in the subfamily Pterostichinae.[1] It was described by Tschitscherine in 1899.[1] A. alluaudi is found in Cote d'Ivoire, Africa.[2] A. alluaudi is a shiny black beetle, with an unusual upper jaw (mandible) which is more likely found in Caelostomus species.[2]

Abacetus alluaudi
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Carabidae
Genus: Abacetus
Species:
A. alluaudi
Binomial name
Abacetus alluaudi
Tschitscherine, 1899

Taxonomy and Phylogeny

A. alluaudi is named after the French entomologist Charles A. Alluaud who first collected the species.[2]

Description

Colour and Markings

A. alluaudi is a shiny black colour with iridescent wings.[2] The line of the junction between the prothorax and the wings and the associated lateral edges, have a reddish tinge.[2] The legs and mouth feelers are a dull yellow brown to red in colour.[2] The antenna are a dark reddish-brown.[2]

Head features

Upper jaw is very slightly arched, similar to Celostomus species.[2] Head is of medium size and smooth with short frontal impressions.[2] Rear of the beetles head strongly diverges from the base.[2] Female beetles have convex and protruding eyes.[2] A. alluaudi has long antennae extending from the shoulders with a large first segment, which is at least as long as the next two combined.[2]

Distribution and Habitat

The species was originally collected by Charles A. Alluaud from Assinie, Cote d'Ivoire, Africa.[2] No other locations are known.

Very little is known about the habitat of A. alluaud, however, based on the collection records, the species is predominately found in a tropical savanna climate (Aw).[3] Tropical savannas comprises grassland with isolated trees and shrubs and are generally found between tropical rainforest and desert biomes.[4]

Assinie
Assinie (Ivory Coast)

References
  1. "Abacetus Dejean, 1828". Carabidae of the World. 2011. Retrieved 7 August 2013.
  2. Tschitscherine, T (1899). "Mémoire sur quelques Platysmatini, nouveaux ou peu connus, D'Afrique et de Madagascar" [Memoir on some Platysmatini, new or little known, from Africa and Madagascar]. Annales de la Société Entomologique de France (in French). 68: 69–71. Retrieved 1 June 2020.
  3. M. C. Peel, B. L. Finlayson and T. A. McMahon (2007). "Updated world map of the Köppen-Geiger climate classification". Hydrology and Earth System Sciences. 11: 1633–1644.
  4. "Köppen Climate Classification". Savanna Biome – Wet-Dry Tropical Climates (Aw). ISC-Audubon. Retrieved June 2, 2020.
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