Stenolophus incultus
Stenolophus incultus
Size: 5-6.7mm
Seasonality: May-January
Distribution; Western USA and s. BC
Information: mostly nocturnal, can be attracted to florescent lights, UV and mercury vapour traps. May be found along muddy banks, in fields, in wetland marshes, and among leaf litter.
Description: body: elongate-ovate, slender. Head triangular, glossy black; head smooth, aside from the two dimples on the frons, which strongly trespass onto the clypeus; clypeus only smooth near median. Labrum dark, squarish, lateral mdn front margins opaque yellow. Mandibles dark, strongly curved, but not strongly obscured by the labrum. Palpu dark, tips pale. Antennae slender, scapus pale; pedicel may be partially pale and partially dark, or one over the other, rest of antennae dark. White antennal pubescence begins on the first (segment 3) antennomere following the pedicel. Eyes large, but not strongly bulging-weakly flattened closer to the head. Pronotum rounded-quadrate; front margin slightly curved inward; front angles obtuse; lateral margins thinly beaded, beading opaque yellow-orange, lateral margins rounded; hind angles obtuse; basal margin nearly transverse. Disk semi-glossy to glossy, mostly smooth; median line faint; hind angles with slight depressions on either side of the lower median. Pronotum slightly narrower than the humeral shoulder width. 8-9 well-defined striae per elytron, intervals black, with bluish iridescence. Humeral shoulders squarish, rounded; lateral margins rounded-elongate, nearly parallel; apices rounded, weakly sinuate. Ventral faces glossy, dark. Femora dark, tibiae typically pale, tarsi may be pale or partially dark.