Anteater-scarab
Guides
Cremastocheilus knochii
Cremastocheilus knochii is a species of myrmecophilous scarab beetle in the family Scarabaeidae. As a member of the genus Cremastocheilus, commonly known as anteater scarabs, it is expected to exhibit the specialized adaptations characteristic of this group: obligate association with ant colonies, predatory feeding on ant brood, and morphological modifications for survival within hostile ant nests. The species is one of approximately 35 recognized Cremastocheilus species in North America north of Mexico.
Cremastocheilus quadricollis
Cremastocheilus quadricollis is a myrmecophilous scarab beetle first described by Casey in 1915. As a member of the genus Cremastocheilus, commonly known as anteater scarabs, this species is believed to share the life history traits documented for congeners: living within ant colonies as a predator of ant larvae and pupae. The species has been recorded from Texas in the United States and Durango in Mexico.