Subject: Unknown bug
Geographic location of the bug: Vietnam, Ho Chi Minh, Masteri
Time: 11:10 AM EDT
Your letter to the bugman: The bug is brown with no wings. It is very strong as it is still stuck to my net when I shakes it really hard.
How you want your letter signed: Allison
This looks to us like an aquatic, predatory Water Scorpion. You did not indicate if you were using your net in the water or to catch flying things. Water Scorpions actually do have wings and they are capable of flying from pond to pond. Handle Water Scorpions with caution. They can bite and the bite is reported to be quite painful.