Zelus cervicalis is a species of insect commonly known as the "long-necked assassin bug." It belongs to the family Reduviidae and is found in various regions of North and Central America. This insect is characterized by its elongated neck, which gives it a unique appearance among other assassin bugs. Zelus cervicalis is a predatory insect that feeds on other insects, using its sharp beak to inject venom and immobilize its prey.