Size: 5-8mm

Seasonality: March-November

Distribution; USA, CAN

Information: nocturnal, very common in the West along waterways and bodies of water, and abundant at UV and mercury vapour traps at night in less-developed areas. Some smaller specimens from the American Midwest and deep South may have rather dark elytra and pronota, nearly fully dark brown.

Description: body: elongate-ovate, slender. Head glossy dark brown to black, triangular; face short, mandibles curved, overlapping when closed, close to face. Palps orange-yellow. Eyes weakly reduced in size, strongly bulging laterally. Head smooth, aside from two dimples on the frons, which briefly continue onto the clypeus. Scapus, pedicel, and first antennomere following the pedicel orange, rest of the antennae dark brown. Antennal pubescence begins on the first antennomere following the pedicel. Pronotum rounded-quadrate, hind angles rounded-obtuse, front angles obtuse, lateral margins rounded; margins widened slightly, upturned. Pronotal disk glossy pale to dark orange, margins opaque. Minor impressions may be seen on the interior dorsal surface of each hind angle. Dorsal surface along the pronotal base punctate. Median line faint. 8 well-defined striae per elytron, intervals glossy. Most of each elytron should be dark yellow or dark orange in a sort of "]" shape, while the interior of that "]" should contain a narrow, long, black macule. The black macules (one per elytron) begin on the elytral sutural margin, ending on the fourth interval.  The two macules begin just below the elytral base, the end about that same distance above the apices. Humeral shoulders squarish-rounded; lateral margins rounded-elongate, nearly parallel; apices round. Ventral faces glossy dark orange-brown, legs dark or pale orange.