Uploaded February 2026 | Updated September 2026, 1 week ago
Today I investigate one of the rarest butterflies in California in the hopes of figuring out the mystery behind its disappearance!
Find my EXTINCT BUTTERFLY POSTER here: store.nebula.tv/collections/atlas-pro
Buy the MARS MAP here: store.nebula.tv/collections/recently-added/products/atlas-pro-extinct-butterfly-art-print
Check out my second channel ARCHIVE DIVE here: youtube.com/@ArchiveDiveYoutube
Get NEBULA using my link for 40% off an annual subscription: nebula.tv/atlaspro
Support me on Patreon at: patreon.com/atlaspro
Follow me on twitter @theatlaspro
Sources / further Reading:
bioaccumulation.wordpress.com/tag/parnassius-clodius-strohbeeni
butterfliesofamerica.com/L/t/Parnassius_clodius_a.htm
baynature.org/article/presumed-extinct
zayantesandhills.com/Zayante%20Sandhills%20Conservation%20Bank%20web/SANDHILLS%20Information.pdf
archives.santacruzmah.org/guides/guide-to-the-john-strohbeen-scrapbooks-collection/history
http://www.ucpress.edu/books/sale/pages/10386.html
extinctanimals.proboards.com/thread/1866/parnassius-clodius-strohbeeni-strohbeen-parnassian
web.archive.org/web/20081015195825/http://isabellakirkland.com/descend_story.html
bioone.org/journals/the-journal-of-the-lepidopterists-society/volume-67/issue-3/lepi.v67i3.a7/The-Dodge-Family-An-Enduring-Tradition-of-Entomology/10.18473/lepi.v67i3.a7.full
google.com/books/edition/Butterflies_of_the_San_Francisco_Bay_Reg/P-XeEAAAQBAJ?hl=en&gbpv=1
https://images.peabody.yale.edu/lepsoc/jls/1950s/1956/1956-10(3-4)113-Tilden.pdf
https://images.peabody.yale.edu/lepsoc/jls/1990s/1990/1990-44(1)45-Smith.pdf
butterfliesofamerica.com/L/t/Parnassius_clodius_a.htm
bugguide.net/node/view/919686
alltrails.com/us/california/bonny-doon--2
https://images.peabody.yale.edu/lepsoc/nls/1960s/1960/1960_v02_n5.pdf#page=2
nap.nationalacademies.org/read/11761/chapter/14#286
youtube.com/watch?v=yhYEG5KNf4I
youtube.com/shorts/a6IVbcGE_zI
books.google.com/books?id=vLw9AAAAIAAJ&q=parnassian#v=snippet&q=parnassian&f=false
baynature.org/article/field-https://www.swsbm.com/Maps/Dicentra_formosa.gif
guide-to-the-lost-species-of-the-san-francisco-bay-area/
berkeleydailyplanet.com/issue/2007-05-29/article/27168?headline=Wild-Neighbors-Getting-to-Know-Your-Local-Butterflies--By-Joe-Eaton
books.google.com/books?hl=en&lr=&id=uLs9AAAAIAAJ&oi=fnd&pg=PA11&dq=sternitzky+parnassius&ots=FqVontrSbd&sig=cbsqfjWSACXcTu3vrG81ui3CROE#v=onepage&q&f=false
inaturalist.org/check_lists/10675-Butterflies-of-California
baynature.org/article/raising-the-dead-bringing-ghosts-to-life-october-december-2007
baynature.org/article/presumed-extinct
books.google.com/books?id=5KdOAAAAMAAJ&focus=searchwithinvolume&q=parnassius
https://images.peabody.yale.edu/lepsoc/nls/1960s/1960/1960_v02_n5.pdf
https://mczbase.mcz.harvard.edu/name/Parnassius+clodius+strohbeeni
https://mczbase.mcz.harvard.edu/guid/MCZ:Ent:27214
https://mczbase.mcz.harvard.edu/guid/MCZ:Ent:192164
https://search.lib.umich.edu/catalog?query=author%3A%22New+England+Zoological+Club%22&library=U-M+Ann+Arbor+Libraries
zayantesandhills.com/Zayante%20Sandhills%20Conservation%20Bank%20web/SANDHILLS%20Information.pdf
etsy.com/listing/1502844929/wildflowers-of-the-santa-cruz-sandhills
Today I investigate one of the rarest butterflies in California in the hopes of figuring out the mystery behind its disappearance!
Find my EXTINCT BUTTERFLY POSTER here: store.nebula.tv/collections/atlas-pro
Buy the MARS MAP here: store.nebula.tv/collections/recently-added/products/atlas-pro-extinct-butterfly-art-print
Check out my second channel ARCHIVE DIVE here: youtube.com/@ArchiveDiveYoutube
Get NEBULA using my link for 40% off an annual subscription: nebula.tv/atlaspro
Support me on Patreon at: patreon.com/atlaspro
Follow me on twitter @theatlaspro
Sources / further Reading:
bioaccumulation.wordpress.com/tag/parnassius-clodius-strohbeeni
butterfliesofamerica.com/L/t/Parnassius_clodius_a.htm
baynature.org/article/presumed-extinct
zayantesandhills.com/Zayante%20Sandhills%20Conservation%20Bank%20web/SANDHILLS%20Information.pdf
archives.santacruzmah.org/guides/guide-to-the-john-strohbeen-scrapbooks-collection/history
http://www.ucpress.edu/books/sale/pages/10386.html
extinctanimals.proboards.com/thread/1866/parnassius-clodius-strohbeeni-strohbeen-parnassian
web.archive.org/web/20081015195825/http://isabellakirkland.com/descend_story.html
bioone.org/journals/the-journal-of-the-lepidopterists-society/volume-67/issue-3/lepi.v67i3.a7/The-Dodge-Family-An-Enduring-Tradition-of-Entomology/10.18473/lepi.v67i3.a7.full
google.com/books/edition/Butterflies_of_the_San_Francisco_Bay_Reg/P-XeEAAAQBAJ?hl=en&gbpv=1
https://images.peabody.yale.edu/lepsoc/jls/1950s/1956/1956-10(3-4)113-Tilden.pdf
https://images.peabody.yale.edu/lepsoc/jls/1990s/1990/1990-44(1)45-Smith.pdf
butterfliesofamerica.com/L/t/Parnassius_clodius_a.htm
bugguide.net/node/view/919686
alltrails.com/us/california/bonny-doon--2
https://images.peabody.yale.edu/lepsoc/nls/1960s/1960/1960_v02_n5.pdf#page=2
nap.nationalacademies.org/read/11761/chapter/14#286
youtube.com/watch?v=yhYEG5KNf4I
youtube.com/shorts/a6IVbcGE_zI
books.google.com/books?id=vLw9AAAAIAAJ&q=parnassian#v=snippet&q=parnassian&f=false
baynature.org/article/field-https://www.swsbm.com/Maps/Dicentra_formosa.gif
guide-to-the-lost-species-of-the-san-francisco-bay-area/
berkeleydailyplanet.com/issue/2007-05-29/article/27168?headline=Wild-Neighbors-Getting-to-Know-Your-Local-Butterflies--By-Joe-Eaton
books.google.com/books?hl=en&lr=&id=uLs9AAAAIAAJ&oi=fnd&pg=PA11&dq=sternitzky+parnassius&ots=FqVontrSbd&sig=cbsqfjWSACXcTu3vrG81ui3CROE#v=onepage&q&f=false
inaturalist.org/check_lists/10675-Butterflies-of-California
baynature.org/article/raising-the-dead-bringing-ghosts-to-life-october-december-2007
baynature.org/article/presumed-extinct
books.google.com/books?id=5KdOAAAAMAAJ&focus=searchwithinvolume&q=parnassius
https://images.peabody.yale.edu/lepsoc/nls/1960s/1960/1960_v02_n5.pdf
https://mczbase.mcz.harvard.edu/name/Parnassius+clodius+strohbeeni
https://mczbase.mcz.harvard.edu/guid/MCZ:Ent:27214
https://mczbase.mcz.harvard.edu/guid/MCZ:Ent:192164
https://search.lib.umich.edu/catalog?query=author%3A%22New+England+Zoological+Club%22&library=U-M+Ann+Arbor+Libraries
zayantesandhills.com/Zayante%20Sandhills%20Conservation%20Bank%20web/SANDHILLS%20Information.pdf
etsy.com/listing/1502844929/wildflowers-of-the-santa-cruz-sandhills
