Size: 5.4-7mm

Seasonality: April-September

Distribution; NS-AB to VA-AR-OK-AZ, record in California, but the record is not confirmed.

Information: flooded places: lake, pond, and river banks, sea beaches, usually on sandy or clayish soils.

Description: body: compact-ovate, moderately robust, convex. Ventral faces: dark yellow-brown, all appendages pale yellow. Dorsal: head pale yellow with a transverse, bright green marking along the base of the head, heavily punctate. Frons flattish, smooth. Eyes large, bulging strongly, angled forward slightly.Hind margin of the clypeus should be very strongly curved inward, toward the base of the head, with a very small triangular divot at the median on the frons. Labrum rectangular, short; anterior (front) margin weakly concave. Mandibles mostly pale, inner margins and tips dark brown, nearly black in colour; outer halves of the mandibles somewhat flattened, with a high central ridge dividing the jaws each in half; strongly curved into thin points. Palpi pale yellowish-tan, sandy. Pronotum heavily punctate along all margins; margins not upturned, but thinly beaded; centre of pronotal disk iridescent green, mostly smooth; on the left and right edges of the green mark are wide 'C' shaped pale or relatively dark sandy-beige patches. Front margin rounded, nearly transverse; front angles protruding forward, acute; lateral margins sloping from the hind angles down to the front angles; hind angles acute; pronotal base very strongly sinuous. Median line fairly strong. Elytra ovate, cut-off at the base; 14 well-defined striae per elytron, lined with numerous small pits, intervals flattish or weakly elevated. Sutural margin bright to dark green, with two sets of blotchy macules branching off of them near the centre of the suture (beside each is another, small blotch that typically is not connected to the first), and close to the elytral apex; these often give the appearance of a pair of eyes and a grinning toothy grin. Each humeral shoulder sports a wavy green blotch, with 3-4 rounded points aiming towards the elytral apex. Humeral shoulders often slightly broader than the pronotal base, obtuse, nearly squared; lateral margins rounded, sloping apically; apices pointed.