Flat grain beetle

They are red-brown in colour and about 1.5 - 2 mm long. They are flat and quite shiny and have rather long, slender antennae. The antennae of both male and female rusty grain beetles are about half the length of the body. The antennae of the males of flat grain beetles are more than two thirds the length of the body. All adults are strong fliers. The larvae are about 3 mm long, white and somewhat flattened. The posterior part of the body is slightly broader than the anterior half. The head and a distinctive forked process at the tip of the abdomen are slightly darkened.