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Metiini

Kipling Will
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taxon links [up-->]Kuschelinus insularius [up-->]Abropus carnifex [up-->]Antarctiola [down<--]Pterostichini Interpreting the tree
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This tree diagram shows the relationships between several groups of organisms.

The root of the current tree connects the organisms featured in this tree to their containing group and the rest of the Tree of Life. The basal branching point in the tree represents the ancestor of the other groups in the tree. This ancestor diversified over time into several descendent subgroups, which are represented as internal nodes and terminal taxa to the right.

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Containing group: Pterostichini

Introduction

This group is restricted to southern South America where they are frequently one of the most abundant groups of ground beetles. They have several extremely different body forms with Abropus being very platynine-like and most Metius are very harpaline-like. Most Metius are heavily-built ground dwelling species, while Abropus is commonly found on the ground and climbing on vegetation.

Characteristics

All metiines share the absence (Fig A.) of the suture between the mentum and submentum, which is present in other pterostichines (Fig. B). 
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© Kipling Will

 All members except Feroniola species have setose paraglossae (Fig. A), while the more common condition in pterostichites is glabrous (Fig. B).

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© Kipling Will


Discussion of Phylogenetic Relationships

DNA sequence data place this group as sister to the Notonomus series (K.Will unpublished).
Title Illustrations
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Scientific Name Abropus carnifex
Specimen Condition Dead Specimen
Identified By K.Will
Life Cycle Stage Adult
Image Use creative commons This media file is licensed under the Creative Commons Attribution License - Version 3.0.
Copyright © Kipling Will
Scientific Name Antarctiola
Specimen Condition Dead Specimen
Life Cycle Stage Adult
Image Use creative commons This media file is licensed under the Creative Commons Attribution License - Version 3.0.
Copyright © Kipling Will
About This Page

Kipling Will
University of California, Berkeley, California, USA

Correspondence regarding this page should be directed to Kipling Will at

Page: Tree of Life Metiini. Authored by Kipling Will. 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:

Will, Kipling. 2006. Metiini. Version 07 July 2006 (temporary). http://tolweb.org/Metiini/51319/2006.07.07 in The Tree of Life Web Project, http://tolweb.org/

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This page is a Tree of Life Branch Page.

Each ToL branch page provides a synopsis of the characteristics of a group of organisms representing a branch of the Tree of Life. The major distinction between a branch and a leaf of the Tree of Life is that each branch can be further subdivided into descendent branches, that is, subgroups representing distinct genetic lineages.

For a more detailed explanation of the different ToL page types, have a look at the Structure of the Tree of Life page.

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