Range Description

The species has been recorded from western Kenya to south-east Nigeria, unconfirmed record from Tanzania. There is an isolated population in the Cameroonian highlands; and a second larger range to the east from Uganda to southern Democratic Republic of Congo.

In central Africa, it is known from Cameroon, Democratic Republic of Congo, unconfirmed record from Central African Republic (Tsuda), in Congo assumed.

In eastern Africa, it has been recorded in Kenya, Tanzania, Uganda, Malawi and Burundi: forests in Kenya and Uganda, unconfirmed record from Tanzania, often confused with O. caffrum.

In western Africa, the species is known from southeast Nigeria.