About Gnatocerus cornutus (Fabricius, 1798)
Morphologically, the broadhorned flour beetle Gnatocerus cornutus measures approximately 3.5 to 4.5 mm in length and is red-brown in color. This species exhibits sexual dimorphism. Males have a pair of broad, stout horns on their mandibles, along with larger body sizes, enlarged mandibles, widened genae, and two small horns on the vertex. None of these characteristic physical traits appear in females. Ecologically, the broadhorned flour beetle is a stored product insect distributed worldwide, and it occurs more commonly in warm, tropical regions. The beetle is more susceptible to colder climates and innately seeks shelter from cold. In warmer regions, it is often found on cassava root and cotton, while in colder regions with temperate climates such as the UK, it is typically found in flour and provender mills.
