 Males are easy to identify due to their perceptibly broad and smaller mandibles . Their antennae consist of 13 segments , and are almost the same length as the ants ' bodies . <unk> ( an ant that exhibits both male and worker characteristics ) males are known ; in 1985 , a male M. gulosa was collected before it hatched from its cocoon , and it had a long but excessively curved left mandible while the other mandible was small . On the right side of its body , it was structurally male , but the left side appeared female . The head was also longer on the female side , its colour was darker , and the legs and prothorax were smaller on the male side . Male genitalia are retracted into a genital cavity that is located in the posterior end of the gaster . The sperm is structurally the same to other animal sperm , forming an oval head with a long tail . 
