predatory black and ugly gravedigger beetle larva runs through the leaves in search of prey - a slug

wildlife maggot pest silphidae aclypea thickheads malacophagus horticulture biology color natural reproduction ecosystem small length summer damage dangerous decay destruction cooking warning unclean contagion lettuce leaves historical fossil survivor eats tender larva black segments predator mollusceater dead animal hungry ugly disgusting beetle bug nature wild larvae plant