Both species bite mainly during the daytime, particularly in the early hours after dawn and for 2-3 hours before darkness.

这两种蚊子主要在白天叮咬，特别在拂晓之后的清晨和天黑之前2至3小时。

youdao

Then sorrow and crying shall flee away forever, as darkness before the dawn. --Selected.

忧愁要在你面前逃跑，好像黑暗在早晨前逃跑一般。

youdao

No matter how horrible reality, you have to stubborn to believe that this is only temporary darkness before the dawn.

不管现实有多惨不忍睹，你都要固执的相信，这只是黎明前暂时的黑暗而已。

youdao

In the darkness before dawn, they drive the 60-kilometer (37-mile) road from Sesriem and line up at the entrance gate, then gingerly navigate the rough road about 5 more kilometers to the first dunes.

CNN: Romancing the dune in Namibia