They are probably under tub and found a way into pipe but more likely they fell in tub so just appear to be coming from drain.
what is the colour of earwig
The plural of earwig (an insect) is earwigs.
Earwig
can fleas climb up drains
Earwig - album - was created in 1989.
Saint Helena earwig was created in 1798.
Earwig Music Company was created in 1978.
The drain from the washer to the main line is getting plugged and the floor drain is easier. Drain cleaner in the floor drain should take care of it.
The drain is getting plugged and the toilet is lower than the washing machine drain so it is easier for the water to come up in the toilet than to go straight out the drain. Put some drain cleaner down the drain where the washing machine drains and that may solve the problem.
earwigo again
An Earwig!!
An earwig cannot fly, and it is a poor swimmer.