SET
ONE - MAY - JUNE 2015
#2 Just after Molting to Second Instar - 31 May 2015
#1
Second Instar molted 2 P.M. 1 June, 2015
Photo on 3 June 2015 - 12 mm long
#1
Molted to Third Instar 5 June, 2015 6 P.M. - 16 mm
long
#1
Molted to Fourth Instar 9 June 2015
#1
Molted to Fifth Instar 15 June 2015
Ninth day as
Fifth Instar - 83 mm
Crochets at End
of Prolegs
True Legs
SET TWO
Tim Dalsing mated male and female
from Set One and female oviposited 195 ova
SET TWO
SET TWO
First Instar 6
August 2015
SET TWO
First Instar 6
August 2015
SET TWO
Second Instar 9
August 2015
SET TWO
Second Instar 9
August 2015
SET TWO
Third Instar on
11 August 2015
Set 2 - Fourth
Day Fifth Instar - 40 mm long
Set 2 - Fourth
Day Fifth Instar - 40 mm long
#2 Sixth Instar - 30 August 2015
#2 Sixth Instar with exuvia -
30 August 2015
++++++++++++
Parasitized
caterpillar near Koosharem, Utah
Photo Details
ŠNicky Davis
SET ONE
On 31 May 2015 some first and second instar
gloveri were received from Tim Dalsing who
received them from Wayne Whaley. Ova
were obtained from an adult female who was
located in Southern Arizona, USA.
#1 molted to 2nd Instar at 2 P.M. 1 June
2015. Photo on 3 June measured 12 mm
long
4 days as third instar - 22 mm on third day
3rd instar
6 days as fourth instar - 42 mm on fourth day
of fourth instar
11 days as fifth instar - 84 mm on tenth day
of fifth instar
Purged excess fluid on 26 June 2015 and
began spinning cocoon
HOST: Salix exigua
SET TWO - These are from sister/brother mating
pair from SET ONE reared by Tim Dalsing
All instars are much smaller than they were in
SET ONE
Ova
First Instar - 2.5 days as
first instar - Hatched 6 August 2015 -
5.5 mm
Second Instar - 3 days as second instar
- Molted to second instar 8 August 2015
p.m. - 10mm
Third Instar - Molted to third
instar 11 August 2015 - 18 mm
Fourth Instar - Molted to fourth
instar 16 August 2015 - 24 mm (much
smaller than Set One fourth Instar
Fifth Instar - Molted to fifth
instar 21 August 2015 - 40 mm on 25
August 2015 - 8 days as fifth instar
Sixth Instar - Molted to sixth instar 29
August 2015 - 75 mm on 11
September 2015 (13th day as 6th instar)
Family Tree
Family: Saturniidae, Genus:
Hyalophora, Species:
columbia, Ssp. gloveri
Other
In the west the caterpillar hosts are the
western choke cherry (Prunus demissa),
bitter cherry (P. emarginata),
bitterbrush (Purshia tridentata), wild
roses (Rosa), willows (Salix),
buffalo berry (Shepherdia argentea),
Russian olive (Eleagnus angustifolius),
and buckbrush (Ceanothus).
Identification marks: Wings are dark brown to
red-brown. The gray area outside the white
postmedian band does not contain any red.
Crescent spots on the forewings and hindwings
are white, although occasionally the spots on
the forewing may be reduced or absent.
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