Lepus is a large rabbit Boss exclusive to the mobile version of Terraria. It can be summoned with the Suspicious Looking Egg, which is dropped by Diseaster Bunnies during Easter. When summoned, the message "Lepus has awoken!" will display. Lepus can be spawned at any time of day.
Lepus lays two types of Easter Eggs: small ones that hatch Diseaster Bunnies, and bigger ones that hatch another weaker Lepus. These eggs can be damaged and destroyed by the player before hatching. A maximum of 5 Lepus can be spawned from the large eggs laid by the original Lepus, and after there are five, no more eggs will be laid (small or large). Only the last remaining Lepus will drop items.
If you defeat Lepus while an unhatched large egg is still present, it spawns around 3-6 Diseaster Bunnies instead of a new Lepus.