黑水虻的成虫呈黑色飞虫状态，它们的口器因退化，所以不再进食。成虫不会对

黑水虻的成虫呈黑色飞虫状态，它们的口器因退化，所以不再进食。成虫不会对人类造成困扰，它们只会在躲树叶上，吸食少量的水分。这个阶段主要的生存目的就是找寻找交配对象以繁衍后代。

Results (English) 1:

Blackwater fly adult black flies status, because their mouthparts degradation, so no eating. Adults will not cause distress to mankind, they will only hide in the leaves, taking a small amount of moisture. The main purpose of survival at this stage is to find to find a mate to reproduce.

Results (English) 2:

The adult insects of the black otters are in a state of black moths, and their mouthpieces are degraded, so they no longer eat. Adult worms do not cause problems in humans, they only suck up small amounts of water from leaves. The main survival purpose of this stage is to find mating objects to reproduce.

Results (English) 3:

The adult of the black water fly is in the state of black fly, and their mouthparts are degenerated, so they don't eat any more. Adults don't bother humans. They just hide from leaves and suck a small amount of water. At this stage, the main purpose of survival is to find mating objects to reproduce.