Helmi streams stars within 2.5 kpc as selected by D22 shown in colour in velocity space (top panels) and L_z − L_⊥ space (bottom left panel and zoom-in on the right). The grey dots and contours show the full Gaia sample within 2.5 kpc. The darker coloured squares are all Helmi streams stars with Gaia radial velocities, and the lighter coloured dots show stars with ground-based radial velocities. While the Helmi streams stars are visibly clumped in v_z − v_y space, the streams are clearly distributed into two distinct clumps in L_z − L_⊥ space. One clump has high L_⊥ (hiL, red), and the other clump has low L_⊥ (loL, blue).