TaenionemaC. Riley Nelson
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Thirteen species of Taenionema are currently recognized (Stanger & Baumann 1993). Most are found in western North America with a single species in eastern North America and another single species found in Japan and eastern Asia.
Stanger and Baumann (1993) used the suggestions of Ricker and Ross (1975) to list the synapomorphies of the genus as: 1. The epiproct is narrow with the tip bent back or otherwise modified. The tip is sharply pointed from a lateral aspect and slightly scooped out behind. 2. The basicercal processes are rounded, elongate, either fleshy or narrow, and are directed mostly dorsaly with the tip narrowed and curved back. 3. The posterolateral corners of sternum 9 in the male are slightly to moderately elevated, with the middle region of the hind margin of the sternum depressed. Stanger and Baumann (1993) produced the matrix for the species in the genus along with the tree that is used on this page.
Ricker, W. E. and H. H. Ross. 1975. Synopsis of the Brachypterinae (Insecta: Plecoptera: Taeniopterygidae). Canad. J. Zool. 53: 132-153.
Stanger, J. A. and R. W. Baumann. 1993. A revision of the stonefly genus Taenionema (Plecoptera: Taeniopterygidae). Trans. Amer. Entomol. Soc. 119: 171-229.
C. Riley Nelson
Brigham Young University, Provo, Utah, USA
Page copyright © 1996
All Rights Reserved.
Citing this page:
Nelson, C. Riley. 1996. Taenionema. Version 01 January 1996 (under construction). http://tolweb.org/Taenionema/14392/1996.01.01 in The Tree of Life Web Project, http://tolweb.org/