Phaeacius malayensis Wanless 198

Family Salticidae, Jumping Spiders
Habitat: Tree trunks in gardens, secondary forests and mangrove swamps.

Distribution: Singapore, Indonesia, Borneo

These big Jumping Spiders of the sub-family Spartaeinae have a different eye arrangement compared to other Jumping Spiders. Whereas the posterior median eyes (i.e., the eyes in the second row) of most Jumping Spiders are tiny, this group of Jumping Spiders posterior median eyes are fairly big. These include spiders in the genera Cocalus, Phaeacius, Portia and Spartaeus.

A different eye arrangement with other Jumping Spiders.
The posterior median eyes (i.e., the last 2 pairs of eyes behind) of most Jumping Spiders are tiny,
but this genus of Jumping Spiders posterior eyes are fairly big.

The second last eyes are much bigger while eyes of other jumping spiders are too tiny to be seen.

This male Phaeacius malayensis is 7mm in body length.