Maltheus Crusaders are enemies that are encountered in the Crusade levels. They are the remains of the child army that Bishop Maltheus lead to their imminent doom. They attack with whip like appendages that spawn from the lower arm. Their entire lower body is missing, and they can fly.
There's one thing you should know about these little pests. They're tough to kill as children. Some Jericho members can get killed by these guys efficiently. However, Delgado's Ababinili is very useful against them. You can try to aim for the head with Ghost Bullet. If you're planning to use Church, Blood Ward is very useful and slicing them with her ninjato.