sentences:  Later, two other mosquito species, the Asian tiger mosquito ("Aedes albopictus") and the bromeliad mosquito ("Wyeomyia mitchellii") were introduced to the islands.The immune system of the honeycreepers had not been exposed to avian malaria since its common ancestor existed 4 to 5 million years ago.Thus, the honeycreepers had not co-evolved with the pathogen to develop resistance as those birds on the mainland did.