thumb| upright|Apterocyclus waterhousei
thumb| upright|Apterocyclus waterhousei
Apterocyclus is a genus of rare stag beetles in the family Lucanidae. There are about five described species in Apterocyclus. The species of Apterocyclus are found only on the island of Kauai in the Hawaiian Islands, and are the only scarabaeoid beetles native to the Hawaiian Islands.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).