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Euchroina

Kipling Will
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taxon links [up-->]Blennidus [up-->]Abacillodes [up-->]Orthomus [up-->]Abariform clade [up-->]Trirammatus [up-->]Oribazus [up-->]Cynthidia [up-->]Euchroa [up-->]Microcephalus [up-->]Bothynoproctus mattoensis [up-->]Lobobrachus [up-->]Haplobothynus [up-->]Prosopogmus [up-->]Marsyas [up-->]Simodontus [up-->]Abacillius [up-->]Argutoridius [up-->]Meropalpus [up-->]Eutrichopus [up-->]Eumara Not MonophyleticNot MonophyleticPhylogenetic position of group is uncertain[down<--]Pterostichini Interpreting the tree
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Containing group: Pterostichini

Introduction

The Euchroina are distributed in all the southern continents with greatest known diversity in South America. The group is composed of an Australian series (=Setalis series of Moore (1965)), Euchroa and Blennidus-like taxa in the South and Central American series (one genus, Abaris, reaches southern North America) and a few taxa from Africa and Southern Europe. 

Characteristics

They are medium to small sized for pterostichines, frequently metallic bronze, green or purple colored. Likely synapomorphies for the group included the lack the coronal suture in larvae (the few that are known), adults with well impressed frontal furrows on the head and a pecular "goose-neck" form of the female reproductive tract (Will 2000). Additionally, most species have sulci on the abdominal sterna, arcuate anterior marginal sulcus on the metacoxae and prominent eyes.

Discussion of Phylogenetic Relationships

The arrangement of taxa in series as presented here is only a working hypothesis. African and Australian taxa do seem group as within-continent groups and appear most similar among themselves. However, they are likely clades or even grades within the group presently desinated as the South American series.

Title Illustrations
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Scientific Name Abaris aenea
Identified By K.Will
Life Cycle Stage Adult
Body Part Habitus
View Dorsal
Image Use creative commons This media file is licensed under the Creative Commons Attribution License - Version 3.0.
Copyright © Kipling Will
Scientific Name Tichonilla nigra
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 Oribazus catenulatus
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
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 Euchroina. 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. Euchroina. Version 21 October 2006 (temporary). http://tolweb.org/Euchroina/51298/2006.10.21 in The Tree of Life Web Project, http://tolweb.org/

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