Xylotrupes ulysses, common names "Elephant beetle", "Coconut palm beetle",[2] "common rhinoceros beetle" or simply "rhinoceros beetle"[3][4] is a species of rhinoceros beetle native to New Guinea.

Male horns in several groups of this genus represent a special secondary sex characteristic.

There is a bimodal horn-size distribution and there is a discrete male mating behavior correlated with each phenotype.

[5] Media related to Xylotrupes ulysses at Wikimedia Commons

This Dynastinae article is a stub.