Cercocarpus ledifolius (Curl-leaf mahogany)
Cercocarpus  montanus (Mountain mahogany)
Purshia tridentata (Antelope Bitterbrush)
Photos of the behrii area

 
OVA -  Two females oviposited 114 ova over six days.  They over wintered as ova.

LARVAE (ALSO CALLED INSTARS AS IN FIRST, SECOND, THIRD FOURTH OR FIFTH INSTAR) - Some ova were removed from hibernation on the 18th of April and some on the 22nd of April 2013.  Eggs were kept in a  cello cup and misted once a day until larva emerged.  The cello cups (tiny plastic containers) were kept  about  14 inches underneath a "Grow Light" for 15 hours a day and then in the dark for the night.   Since they have already gone through their hibernation period, the light probably makes little difference.

At 8:30 A.M. of the 26th of April the first larva emerged from the ones taken out on the 22nd of April.  After it ate the remaining contents of the egg shell it was placed on a bud of a Purshia tridentata bud.  It was 1.5 mm long.  At 12:30 another ovum emerged and this one was placed on a bud of a Cercocarpus ledifolius flower.  They were  placed on buds using a wet #1, 7050 Script Loew-Cornell brush which is good because it doesn't injure the tiny larvae. Eight larvae total emerged and some were placed  on Cercocarpus ledifolius and some on Purshia tridentata. They started feeding on the outside of the buds and ate through to the center.  By the time they were third and fourth instars they were feeding on flower petals.  None of them ever fed on leaves.  Some fed  on  Cercocarpus ledifolius and some on Purshia tridentata.

2ND INSTARS
#3 larva on ledifolius was seen and photographed molting to second instar 4:17 P.M. 1 May 2013. In the photos you can see it's old head case and skin.   #2 second instar on ledifolius measured 3 mm 4:30 P.M. 1 May  2013.  They both were still a pink/orange color at five days old.

3RD INSTARS
#2 molted to third instar  5 May 2013 on host plant ledifolius,  7 mm long on 6 May 2013 and a soft green color.
#3 set to molt 6 May 2013
On 6 May I noticed one of the larvae on the Purshia tridentata was eating on a flower petal rather than staying on a bud which is good since the tridentata and ledifolius  buds had  flowered by then.

4TH INSTARS
#2 molted to  4th instar 6:50 A.M. 10 May 2013 on host plant ledifolius.
#1 molted to 4th instar before  7:00 A.M. 10 May 2013 on host plant  tridentata noted by exuvia left on plant.