SeasonalityNymphs can be found beginning in May, and adults as late as September (McPherson 1982).
IdentificationColour grayish to a pale-yellowish brown. The juga are slightly longer than clypeus, as in Rhacognathus americanus Stal but not touching anteriorly. The rostrum does not reach the hind coxa and its third segment is longer than both the second and fourth segments. The 5th antennal segment is longer than the 3rd isolating it from Apateticus cynicus, another N.A. species in this genus. The margins of the pronotum are equipped with narrow projections, as in the morphologically similar genus Podisus Herrich-Schaeffer. The lateral portions of the abdomen are widely exposed and not covered by the hemelytra. These exposed regions have a distinct black, double-dash along the margin of each abdominal segment. The female genitalia has 3 basal plates, but the centre plate is triangular in shape. Adults are fairly large in comparison to the morphologically similar genus Podisus; length 13-17 mm (Blatchley 1926).