Yeah, it's the projection of the ecliptic onto the surface of a terrestrial globe. Some globemakers draw it. In my opinion, it's a really useless addition. If you have a celestial globe (star map globe), the ecliptic is crucial to show but in a terrestrial globe it's useless and confusing, because the there's no one correct way to put it. There's no function in the exact position of the line or the areas it passes through. What I mean, is that the northernmost point in the ecliptic is now shown in 90E in Bangladesh, but the point could be anywhere in the tropic of Cancer. The ecliptic goes from one tropic to another, but there's no "place" on earth where it goes, as it's a feature of the celestial globe. When the sun is over the tropic of Cancer, in the northern summer solstice, the situation is the same for every point in the tropic of Cancer. The reason for putting it this way is that in the celestial coordinates, the northernmost point of the ecliptic is in the equivalent position of 90E. But, the celestial longitudes have no corresponding on any specific longitude on earth, as the sky goes around the earth all the time. (Hope you could get the point from this).