HOW TO DISTINGUISH BETWEEN LIMENITIS DISIPPUS--Godt., AND L. URSULA, Fabr., IN THEIR PREPARATORY STATESv. 3No. 352–53
Riley, C. V. 1871. "HOW TO DISTINGUISH BETWEEN LIMENITIS DISIPPUS--Godt., AND L. URSULA, Fabr., IN THEIR PREPARATORY STATES." Canadian Entomologist, 3, (3) 52–53.