👉 Graphogaster is a type of insect that feeds on the blood of other insects, specifically members of the family Rhopalidae (which includes ants and flies). They are known for their specialized digestive systems that allow them to extract nutrients from the host's bloodstream without harming it. The term "graphogaster" comes from the Greek word "graphos," meaning "tree," as they feed on tree sap, which is a common source of blood for these insects.