Orphnaecus adamsoni

Orphnaecus adamsoni is a species of tarantula found in the Dinagat Islands, Philippines. It is the fourth member of the genus Orphnaecus found in the country and the fifth overall. It was discovered by a research team of Adamson University in Manila, where it took its name.

Discovery
Orphnaecus adamsoni was discovered by Julius John Salamanes, Jhayson Mark Santos, Eleanor Austria, and Gil Gabriel Villancio of Adamson University in the province of Dinagat Islands, Philippines. Seven members of the species (three male and four female) were collected in Mt. Magkuno in Loreto and Mt. Arayat in Basilisa and Cagdianao. The team named the species after the university and published their discovery in August 2022 on the open-access journal Biodiversitas.

Characteristics
Salamanes et al. (2022) noted it closely resembles Orphnaecus kwebaburdeos in Polillo Islands, Quezon Province in Luzon. However, it has rounded carapace and shorter leg segments, more clavate paddle-shaped maxillary lyra, and a different habitat. It has a brownish appearance.