Entomology definition of Mystacine -us September 9, 2014 Raj Entomology Dictionary 0 Please Like Us!!! DesiGoogly.com > Education News > Entomology Dictionary > Entomology definition of Mystacine -us Entomology definition of Mystacine -us: bcarded: with a hairy fringe above mouth or on clypeus. Entomology Mystacine -us definitionMystacine -us Entomology explanationMystacine -us Entomology meaningReviews & Comments