Description: Naucorids are true bugs, 5 - 6 mm (0.24 in.) long, commonly called creeping water bugs. This species is brownish in color, body shape broadly oval and somewhat flattened. Diagnostic features include the greatly thickened front femora (femur of front leg) and front wing membranes without veins. Naucorids bite quite readily and painfully when picked up.
Diet: Small aquatic invertebrates.
Habitat: Quiet waters or stream outlets; found in pebble beds of stream habitat with water temperatures between 23.9 - 31.7o C (75 - 89o F).
Range: Endemic to the Warm Springs area, Clark County, Nevada.
Comments: This species is a High Priority Evaluation Species. Amargosa naucorid (Pelocoris shoshone shoshone), a Medium Priority species, also occurs in the Warm Springs area.