The largest of the ants, and the heaviest species of the order, are the females of Dorylus helvolus, reaching a length of 5 cm (2 in). The ant that averages the largest for the mean size of the whole colony is Dinoponera gigantea, averaging up to 3.3 cm (1¼ in). The largest of the bee species, also in the order Hymenoptera, is Megachile pluto, the females of which can be 3.8 cm (1½ in) long, with a 6.3 cm (2½ in) wingspan. The largest wasp is probably the so-called tarantula hawk species Pepsis pulszkyi, at up to 6.8 cm (2¾ in) long and 11.6 cm (4½ in) wingspan, although many other Pepsis approach a similar size.