Under Construction

Peltoperlidae

Roach-like Stoneflies

C. Riley Nelson
Click on an image to view larger version & data in a new window
Click on an image to view larger version & data in a new window
TallaperlaPeltoperla arcuata
taxon links [up-->]Soliperla [up-->]Yoraperla Phylogenetic position of group is uncertainPhylogenetic position of group is uncertainPhylogenetic position of group is uncertain[down<--]Plecoptera Interpreting the tree
close box

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.

example of a tree diagram

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.

For more information on ToL tree formatting, please see Interpreting the Tree or Classification. To learn more about phylogenetic trees, please visit our Phylogenetic Biology pages.

close box
Tree from Stark and Stewart (1981).
Containing group: Plecoptera

Introduction

Peltoperlidae is one of the smallest families of Plecoptera with approximately 50 species divided between the nearctic, palearctic, and oriental regions. The nymphs are very distinctive in being "roach-like" in appearance. They often occur in very shallow flowing water, such as seeps on rock faces, but are also represented in a wide variety of small streams and rivers. The adutls are recognizable in the field as having small heads when compared to other Systellognathan stoneflies such as perlids.

Characteristics

Synapomorphies for Peltoperlidae: 1, body stout, head prognathous, cockroach-like nymphal body form; 2, male cercal segments fused; 3, nymphal coxae with flap-like lobe.

Other Names for Peltoperlidae

References

Claassen, P. W. 1931. Plecoptera nymphs of America (north of Mexico). Thomas Say Found., Entomol. Soc. Amer. 3: 1-199.

Stark, B. P. and K. W. Stewart. 1981. The nearctic genera of Peltoperlidae (Plecoptera). J. Kansas Entomol. Soc. 54: 285-311.

Zwick, P. 1973. Insecta: Plecoptera. Phylogenetisches System und Katalog. Das Tierreich 94. Walter de Gruyter and Co., Berlin. 465 pp.

Title Illustrations
Click on an image to view larger version & data in a new window
Click on an image to view larger version & data in a new window
Tallaperla
Scientific Name Tallaperla
Location Tennessee
Copyright © 1996
Peltoperla arcuata
Scientific Name Peltoperla arcuata
Location North Carolina
Copyright © 1996
About This Page

C. Riley Nelson
Brigham Young University, Provo, Utah, USA

All Rights Reserved.

Citing this page:

Nelson, C. Riley. 1996. Peltoperlidae. Roach-like Stoneflies. Version 01 January 1996 (under construction). http://tolweb.org/Peltoperlidae/13950/1996.01.01 in The Tree of Life Web Project, http://tolweb.org/

edit this page
close box

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.

close box

Peltoperlidae

Page Content

articles & notes

collections

people

Explore Other Groups

random page

  go to the Tree of Life home page
top