Monarch Danainae  Danaus  plexippus Immatures Home  -  Butterflies  -  Details Male   Female   Eclosure   2016 female-immatures Female ovipositing on milkweed  ©Todd Stout Ova Young Larva (probably second or third instar)  - August 26, 2006 Fourth Instars  - September 9, 2006   Fifth Instar- September 05, 2006 Pre-Pupa - September 13, 2006 A larva pupating on September  14, 2006   A Pupa on September 6, 2006 (not the same as subject as shown above) Pupa Pupa - 9:15 A.M. on September 15, 2006 Just prior to adult butterfly emerging Photo Details - ©Nicky Davis On August 26, 2006,  ova and larvae located  on private property in Salt Lake County with permission granted from property owner.  All these photos are not of the same individual.  The larvae that developed from the two ovum collected  are much larger than the two larvae collected  as young instars. Female ovipositing on milkweed  ©Todd Stout 1.  ovipositing Ova 1. August 26, 2006 Young Larva 1. dorsal, 2. lateral -  August 26, 2006 Fourth Instar 1. Two fourth instar larvae feeding on the same leaf.  Fifth Instar 1.  lateral - September 5, 2006 Pre-Pupa 1.  September 13, 2006 - Larva formed a "J" on the plant then formed a pupa.  Larval skin splitting and new pupa emerging 1., 2., 3.  Three photos showing the larval skin splitting and a pupa emerging.  I oriented the photo 90 degrees left  to show close-ups of the event. Pupa 1. Left, right - Photos of a new pupa on September 6, 2006 2. Pupa just prior to emergence of adult butterfly.  There was a nine day period between  larvae forming a "J"  and the adults emergence. Host plant  Milkweed