This may take a few tries but:
How to catch a Dung Beetle
Season: Winter
Time: Night
Location: In Snowballs (Pushing them around)
1. Find a snowball located in your town.
2. Check and see if the snowball is moving. If it is, then you've found a dung beetle.
3. Now when it stops moving, slowly, move in closer to the bug walking to fast will scare it off.
4. Keep moving in closer but don't move in to close. Wait until your net length.
5. Swing your net and you've caught a Dung beetle if you did it correctly.
Enclosure
How to catch a Dung Beetle
Season: Winter
Time: Night
Location: In Snowballs (Pushing them around)
1. Find a snowball located in your town.
2. Check and see if the snowball is moving. If it is, then you've found a dung beetle.
3. Now when it stops moving, slowly, move in closer to the bug walking to fast will scare it off.
4. Keep moving in closer but don't move in to close. Wait until your net length.
5. Swing your net and you've caught a Dung beetle if you did it correctly.
Enclosure