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Aleochara (Triochara)

Christian Maus and James S. Ashe (1947-2005)
Containing group: Aleochara


This small monophyletic subgenus is distinguished by conspicuous morphological characteristics (see below). It includes three seashore-dwelling species from Japan, Korea and the Russian Far East.


Triochara is characterized by three longitudinal furrows on the pronotum which are formed by large, confluent punctures. One of these furrows is located in the pronotal midline, another one on each side of the midline. This characteristic is autapomorphic for the subgenus. Other characteristics include: head with two longitudinal subparallel furrows formed by coarse, confluent punctures, and a transverse depression in front of hind margin; pro- and mesotibiae with stout spines; pronotal hypomera visible in lateral view; mesosternum without carina; and median lobe of the aedeagus with a pair of ventral processes.

Identification Guides

This group has been revised by ASSING (1995).


The species live on seashores under decaying seaweed. A. (T.) nubis was found at the sandy shore of a salt lake. Hosts and development are not known.

Discussion of Phylogenetic Relationships

The phylogenetic relationships within this subgenus have not been investigated.


Assing, V. 1995. The Palaearctic sspecies of Emplenota Casey, Polystomota Casey, Triochara Bernhauer and Skenochara Bernhauer & Scheerpeltz, with descriptions of three new species (Coleoptera, Staphylinidae, Aleocharinae). Beitr. Ent. 45(1): 217-237

About This Page
Development of this page made possible by National Science Foundation PEET grant DEB 95-21755 to James S. Ashe and a DAAD grant D/97/05475 from the German Government to Christian Maus. All images on this page copyright © 1997 James S. Ashe.

Bayer CropScience AG, Institute for Ecotoxicology, Monheim, Germany

James S. Ashe (1947-2005)
University of Kansas, Lawrence, Kansas, USA

Correspondence regarding this page should be directed to Christian Maus at

Page: Tree of Life Aleochara (Triochara). Authored by Christian Maus and James S. Ashe (1947-2005). The TEXT of this page is licensed under the Creative Commons Attribution License - Version 3.0. Note that images and other media featured on this page are each governed by their own license, and they may or may not be available for reuse. Click on an image or a media link to access the media data window, which provides the relevant licensing information. For the general terms and conditions of ToL material reuse and redistribution, please see the Tree of Life Copyright Policies.

Citing this page:

Maus, Christian and James S. Ashe (1947-2005). 1998. Aleochara (Triochara). Version 11 September 1998 (under construction). http://tolweb.org/Aleochara_%28Triochara%29/9905/1998.09.11 in The Tree of Life Web Project, http://tolweb.org/

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