Oryzaephilus surinamensis
Grain beetle ( Oryzaephilus surinamensis )
The sawtoothed grain beetle ( Oryzaephilus surinamensis ) is a beetle of the family of predatory beetle ( Silvanidae ).
Features
Sawtoothed grain beetles are 2.5 to 3.5 millimeters long. They are brown and finely hairy fitting bright. Her head is broad and has prominent compound eyes. The pronotum bears on the sides of six teeth. The pronotum disc has three longitudinal ribs. The elytra are slightly wider than the pronotum and contribute raised longitudinal ribs extending rows of dots between them. The males differ from the females by one tooth on the legs ( femora ) of the hind legs. The species can be easily confused with mercator Oryzaephilus. However, this type has the temples, which are not equally long as the compound eyes, but shorter than the half length of the eyes.
Dissemination and lifestyle
The animals are typical synanthropic and cosmopolitan spread. They inhabit inventories, particularly of cereals, flour and nuts; However, they are also found in compost, rotting hay, under bark and in similar habitats. They make mainly hunt insect larvae that feed especially on the inventories. They rarely eat already infested grains.