Numbers
9 spp. total (many of uncertain validity), about 3 in our area
(1)(2)Remarks
Some of the species in this genus are very distinctive and can be recognized at a glance, but the majority are rather difficult to reliably tell apart from photos alone. Color patterns vary individually and with age (and it is often difficult to tell if an individual in a photo is a nymph or an adult). Some of the species seem to "run together" and not be entirely distinct from one-another. And, there may also still be unnamed species. So, identifications of some of the more similar looking species here on BugGuide should be considered tentative, especially from within Texas (where the majority of "species" occur).