Orphnaecus dichromatus is a species of selenocosmiine tarantula, in the Phlogiellini tribe.

[1] This species was originally described as Chilocosmia dichromata by Schmidt & von Wirth, in 1991.

[2] O. dichromatus has 10 large (and some small) teeth on the chelicerae in a row.

It also has 4-5 rows of strikers (also on the chelicerae), that are basally thickest and longest.

The cephalothorax, coxae and trochanter are reddish-brown and the abdomen and other leg segments are brown.