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.
You can click on the root to travel down the Tree of Life all the way to the root of all Life, and you can click on the names of descendent subgroups to travel up the Tree of Life all the way to individual species.close box
Members of the subfamily Hydrophilinae are the most well-known of the subfamily Hydrophilidae. Ranging in size from 1 to more than 50 mm, the group is highly varied in form, habitat, and behavior and is a common (and often abundant) component of freshwater (and a few terrestrial) habitats around the world (Hansen, 1991).
Although containing over 60 genera, roughly half the species are contained in just four of these: Berosus, Laccobius, Enochrus, and Helochares (Hansen, 1999). Each of these genera that comprise the “Big 4” occur in all major biogeographic regions except Antarctica. All four are also divided into a number of subgenera.
The relationships among the six tribes that comprise the subfamily are far from resolved. Half of these tribes have been suggested to be non-monophyletic as presently delimited (Archangeksly 2004, Komarek & Beutel 2007).
Archangelsky, M. 2004. Higher-level phylogeny of Hydrophilinae (Coleoptera: Hydrophilidae) based on larval, pupal, and adult characters. Systematic Entomology 29: 188–214.
Hansen, M. 1991. The hydrophiloid beetles. Phylogeny, classification and a revision of the genera. Biologiske Skrifter 40:1-368.
Hansen, M. 1999. World Catalogue of Insects 2: Hydrophiloidea (Coleoptera). Stenstrup, Apollo Books, 416 pp.
Komarek, A. & Beutel, R.G. 2007. Phylogenetic analysis of Anacaenini (Coleoptera: Hydrophilidae: Hydrophilinae) based on morphological characters of adults. Systematic Entomology, DOI: 10.1111/j.1365-3113.2006.00359.x.
University of Kansas, Lawrence, Kansas, USA
Correspondence regarding this page should be directed to Andrew Short at
Page copyright © 2007 Andrew Short
Page: Tree of Life Hydrophilinae. Authored by Andrew Short. 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.
- First online 24 April 2007
- Content changed 29 June 2007
Citing this page:
Short, Andrew. 2007. Hydrophilinae. Version 29 June 2007 (under construction). http://tolweb.org/Hydrophilinae/9216/2007.06.29 in The Tree of Life Web Project, http://tolweb.org/