Amara aenea
Amara aenea
Size: 6.2-8.8mm
Seasonality: February-October
Distribution; native to Eurasia, introduced in North America
Information: fields, orchards, roadsides, sand pits, usually on dry sandy soils; occasionally on plants (Bousquet).
Description: body: elongate-ovate, moderately convex, somewhat slender. Dorsal colouration from metallic gold or gold-bronze, to semi-matte, black with faint golden patches. Ventral colouration glossy black; femora black, weakly reddish, tibiae red. Head smallish, triangular; surface of the head mostly smooth; two pale supraorbital setae over each eye. Eyes not reduced, but do not bulge laterally. Two minor dimples on the frons, which do not continue onto the clypeus. Two setigerous pores on the clypeus, one on either lateral dorsal margin. Labrum short, rectangular; front and lateral margins opaque orange. Mandibles dark; curved close to the face: short. Palpi dark, tips pale. Scapus, pedicel, and first following antennomere pale yellow-orange, the rest are dark. Antennal pubescence begins on the second antennomere following the pedicel. Pronotum just over half the length of one elytrn; squarish with sloed/curved lateral margins. Lateral margins curved, sloping towards the head; front margins curved inward of the pronotum; front angles acutge, bent forward somewhat; hind angles squared; basal margin weakly sinuous; margins mbeaded. Median line weak; disk mostly smooth, may appearn to have cracks across the disk, not visible without magnification. Dorsal base rough; one very small dimple may be found on either side of the lower median. Scutellum exposed; pronotal base as wide as the elytral base. 8 well-defined striae per elytron, intervals flat; laterobasal ridges entire, obscured by the pronotal base. No parascutellar pores. Humeral shoulders obtuse, nearly squared; apices sinuate. No elytral pubescence.