Hordes of mosquitoes invaded Buenos Aires over the past week, the second time in the past two months that the insect has ravaged the Argentine capital.  Knewz.com has learned that experts believe a recent drought and the subsequent rainfall caused the swarm of mosquitoes. Experts said the mosquitoes laid eggs during damp moments but that the eggs did not hatch and instead endured the prolonged drought . Then, thanks to recent rainfall, eggs have begun to hatch simultaneously. “A large number of