Stag beetle
Videos
Stag beetles compose the family Lucanidae. It has about 1,200 species of beetles in four subfamilies. Some species grow to over 12 centimetres, but most to about 5 cm.
Dorcus curvidens male (left) and female (right)
Mandible allometry in Prosopocoilus savagei
Mandible (insect mouthpart)
Videos
Insect mandibles are a pair of appendages near the insect's mouth, and the most anterior of the three pairs of oral appendages. Their function is typically to grasp, crush, or cut the insect's food, o
The mandibles of a bull ant
Stag beetle with mandibles modified no longer used in feeding
Musculature of ant mandibles
Wasp drinking; the yellow mandibles can be seen on either side of the mouthparts