Ova
30 March 2017
First instar 31 March 2017
Second Instar 2 April 2017
Third Instar 10 mm long on 4 April 2017
Third Instar 4 April 2017
Fourth Instar - 7 April 2017
Fourth Instar - 7 April 2017
Fifth Instar Lateral View - 9 April 2017
Fifth Instar Dorsal View - 9 April 2017
The yellow/orange osmeterium gland, which emits a
disagreeable odor,
is extended when larvae of swallowtails feel
threatened
Fifth Instar Head - 9 April 2017
Pupa - 15 April 2017
Pupa - 15 April 2017
A different colored pupa on 17 April 2017
Photo
Details
- ŠNicky Davis
Members of the Utah Butterfly Club went on
an outing to Welcome Springs, Washington County,
Utah on 18 March 2017 where female Coloro
butterflies were located. The following
week, Tony Jones arranged the female coloros on
host plant to acquire ova. Todd Stout and
Sheryl Stout removed the ova from the host plant
and placed in containers for the members
interested in rearing the butterflies.
Larvae began emerging March 29, 2017.
1. Ova
2. First Instar - These all emerged 29
March 2017, 2-3 mm long
3. Second
Instar - Molted to second instar on 2
April 2017, 5 mm long
4., 5. Third Instar - Molted
to third instar on 4 April 2017, 10 mm long
6. Fourth Instar on 7 April 2017
7. 8., 9. 10. Fifth Instar on 9
April 2017 and osmeterium
11., 12. Two photos of pupa on 15 April
2017
13. A different colored pupa 16 April 2017
Host Plant
Thamnosma montana- Turpentine Broom
We used Fennel (Foeniculum vulgare) as
host plant which agrees with the caterpillar
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