The name comes from the Greek aÄ `` dÄ `` s , meaning `` unpleasant '' or `` odious '' , so called because of the diseases this type of mosquito transmits , including dengue fever and yellow fever . The name comes from the Ancient Greek aÄ `` dÄ `` s , meaning `` unpleasant '' or `` odious '' , so called because of the diseases this type of mosquito transmits , including dengue fever and yellow fever .