| They seemed to hunt by scent, ignoring nests with faux frass in the form of small black glass beads. |
| I measured digestibility as the proportion of eaten plant biomass not deposited as frass by 0800 the following morning. |
| After collecting, we removed litter from litter bags and gently cleaned it of roots, invertebrates, frass, and soil. |
| Often dark black pellets of frass will be in the nest with the caterpillar. |
| This frass is considerably different from the pelletized frass left by drywood and dampwood termites. |
| We felt the fine, sharply scented frass of a carpenter ant colony with our fingertips. |
