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MALE MALE EMERGENCE PUPA SPECIMEN
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Larvae
Hatched June 30th and photo taken July 2, 2008
Molted to 2nd instar on July 5th, photo taken on July 6th
3rd Instar
Molted to
3rd Instar on July 8th, photo on July 11th |
Molted to
3rd Instar on July 8th, Photo on July 13th |
4th Instar #1 on July 15th
4th Instar #1 on July 17th - yellowish orange spots are pollen
4th Instar #1 - July 17th
4th instar #2 shows pale bluish-green spot on the cervical shield..also more pollen debris - July 19th
4th instar #2 - July 19th
Sadly, this caterpillar was half eaten by one of the other caterpillars
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Details - ©Nicky Davis Located females at Strawberry Reservoir, Wasatch County, Utah on June 24, 2008. Elevation 7700 feet N. 40.09.85, W. 111.11.517 Laid eggs on June 25th and the larvae hatched on June 30, 2008. These normally hibernate as 2nd instar after turning brown per James A. Scott's Butterflies of North America. I reared them under 24x7 room light by an east facing window, changed to fresh host plant daily and some of these went straight through to adult butterflies. Ova Females began ovipositing on June 25th using the lupine from Strawberry Reservoir. Larvae Larva hatched June 30th, photo taken on July 2, 2008. Larvae fed on lupine from Strawberry Reservoir 23 to 26 days before pupating. Molted to 2nd instar on July 5th, photo taken on July 6th Molted to 3rd instar on July 8th, Left photo taken on July 11th, right photo on July 13th Molted to 4th and last instars on July 14th and 15th photo Cannibalized larva photo Pupae Butterflies emerged from pupae after about 10 days. Sub-Species information "7700' in Wasatch Co. would make them pembina. The borderline between pembina and fulla (ardea) is real fuzzy- basically, a 1500 or 2000' chunk of real estate between the deserts and mountain habitats..." Andy Warren Host Lupine, unknown species from Strawberry Reservoir. Notes While the Type Locality is in Montana, the name has traditionally been applied to basically all northern intermontane icarioides from NW CO, N UT, WY, SD, MT, ID, N NV, E WA and E OR. The truth of the matter is, that the name is more of a dumping ground for a variety of populations, since as you have already noticed, one can observe subtle differences between populations across this large area. From C UT, though C and S NV and E CA adults tend to be somewhat paler below, with rather reduced black spots, and these are called icarioides fulla (TL Mono Co., CA). Where pembina ends and fulla begins is anyone's guess, and it can probably be defined largely on elevation and habitat from S-C UT eastward; certainly the line between then will pass through Utah somewhere. However, most populations in UT and W CO have adults that fit both phenotypes, when enough adults are examined. So it is kind of messy, but a broadly defined pembina is probably better than another 10 or more subspecies of icarioides (since we already have 23 described ssp.), although in the future somebody will most likely "break up" pembina... Andy Warren Back to Top |