Spontaneous;dorsal and lateral sides of larva covered with dark brown pigments leaving a white longitudinal band above the dorsal vessel; in combination with p, almost white except small black spots on the side of thorax; wavy pattern on the side of abdomen in p2 background: UM(三木ひので, Ursa of Miki) like U, but dilute black Ze- like stripes in combination with p: homozygous UBr(lost) die in fifth instar. See also Di.
Symbol;U