Coleotichus blackburniae is a species of insect in the family Scutelleridae, the jewel bugs.

[1] It has been dubbed the stinkless stink bug for its lack of the malodorous defensive chemicals present in other heteropterans.

Common to all true bugs, this species has no mouth parts with which to bite, cut, or chew its food.

Instead it has a tube-like structure that it uses to suck the contents from the seeds of several types of koa and `a`ali`i plants.

Two parasitoid flies which prey on hemipterans, Trichopoda pennipes[7][8] and Trissolcus basalis[8] were introduced with the intention of controlling Nezara viridula,[7][8] but also attacked the koa bug.