The only known species of Crimona is found in the Mojave Desert region California, western Arizona, and southwestern Utah. This genus may be recognized by the following characters:
1) The eyes are lashed along rear margin.
2) The front of the head is bulging, but a distinct frontal process is absent.
3) The foretibial claw is trong, blunt, and continued on the distal margin as a dull knife-like plate. A very small accesory claw exists proximal to the main claw.
4) Vale of the male genitalia valve broad, with a distinct corona; clasper weak
5) Aedoeagus with the membrane at the apex partly sclerotized and partly denticulate.
6) The vesica of aedoeagus has two parallel rows of spines, the inner row of short tooth like spines set in a rugose area and a single massive spine. There is an outer row of long spines, the spines becoming shorter toward base of vesica.
7) The ovipositor lobes are massively fleshy with a few long spines, but majority of the lobes are completely covered in small shark tooth shaped denticules, their function unknown.
8) The apophyses posterioris of the female genitalia are extremely short and small.
9) Female genitalia with corpus bursae ovate, with one strong plica in the form of a row of bricks
The larva and its foodplants are unknown.