These mosquitoes are the Asian tiger mosquito or the yellow fever mosquito.

这些蚊子是亚洲虎蚊或黄热病蚊子。

The yellow fever mosquito, Aedes aegypti, was actually once common in Sydney, but during the '50s, it disappeared.

黄热病蚊子 Aedes aegypti 实际上曾经在悉尼很常见，但在 50 年代， 它消失了。