Add This to Flamethrower01

# we will change your code just a little

if(Input.GetKeyDown("Fire1") == true)
{
    Instantiate(flamethrower, transform.position + new Vector3(0, 1.05f, 0), Quaternion.identity;
}

# the 1.05f is the distance from the front of the butterfly that you want the flame thrower to appear
# so in the scene view set the butterfly to face up (y position) and move the flamethrower to a small
# distance in front of it and use the number that shows up in the y's transform.