5, see text Orphnaecus is a genus of tarantulas that was first described by Eugène Louis Simon in 1892.

[3] They have close to fifty lanceolate stridulatory spines on the chelicerae, known as "strikers".

The male embolus has a single strong retrolateral keel.

[2] It is considered a senior synonym of Chilocosmia and Selenobrachys.

[2] As of August 2022[update] it contains 5 species, four from the Philippines and one from Papua New Guinea:[1]