Costus References Costus plant genus Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: nectar…example, members of the genus Costus attract nectar-eating ants that then protect the plants from herbivorous insects. Conversely, many species of carnivorous pitcher plants use nectar in their traps to attract prey to their deaths. Read More…example, members of the genus Costus attract nectar-eating ants that then protect the plants from herbivorous insects. Conversely, many species of carnivorous pitcher plants use nectar in their traps to attract prey to their deaths. Read More