👉 Callorhinchidids are a group of small, aquatic insects that belong to the family Callorhinchidae and are characterized by their slender bodies and large eyes. They have a wide range of body sizes from microscopic, single-celled individuals to larger, multi-cellular forms. This group includes species such as the common carp (Carpenterella), which is an important part of aquatic ecosystems due to its role in pollination.