Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Extensive checklist, with bibliography.

(This is an old link, formerly under Hemiptera, a classification no longer used here.)
http://www.ento.okstate.edu/museum/Hemiptera.htm

[cite:156819]
Hemiptera is correct: the checklist covers Heteroptera, Auchenorrhyncha, & Sternorrhyncha