tympanum are on the sides of first abdominal segment
Some are found near water and on edges. Make rasping sounds.
Edmunds, G. F., Jr. 1986. An annotated generic check-list of aquatic and semi-aquatic insects of Utah. Univesity of Utah. Unpublished class handout.
Hanson, W. J. 1982. Identification notes for aquatic entomology. Utah State University. Unpublished class handout.
Nelson, C. R. 1998. ORDER: ORTHOPTERA (grasshoppers, crickets, and katydids), with special reference to those found in Texas. Unpublished class handout, University of Texas.
Version: 4 Orthoptera lab sheet 2008 2.doc