Pheromone-aggregation
Guides
Diplotaxis brevicollis
short-necked scarab
Diplotaxis brevicollis is a small scarab beetle in the family Scarabaeidae, subfamily Melolonthinae. The species is distributed across western North America from Canada through the Rocky Mountains to Mexico. Adults are known to aggregate on low vegetation, apparently to detect pheromone trails for mate location. The specific epithet 'brevicollis' refers to the short-necked appearance of this beetle.
Diplotaxis liberta
Diplotaxis liberta is a small scarab beetle in the family Scarabaeidae, subfamily Melolonthinae. The species occurs across eastern North America from Canada to the southeastern United States, with additional records from the Caribbean. Adults are nocturnal and have been observed aggregating on low vegetation, apparently to detect pheromone trails while searching for mates. Like other members of the genus Diplotaxis, this species is difficult to identify without examination of male genitalia.