John Christensen
@jaspersailfin.bsky.social
Macrophotographer (Jasper Sailfin Photography), nature admirer, butterfly chaser, tech writer, aging soccer player, music lover, gecko breeder, Healthcare IT
https://www.flickr.com/photos/83310407@N04/collections
https://www.flickr.com/photos/83310407@N04/collections
Four days left to support Dave Geale's Butterflies of Eastern Ecuador & Peru: Volume 2.
This volume will have the "best" butterflies, including Riodinidae, Lycaenidae & Hesperiidae!
www.kickstarter.com/projects/dgb...
This volume will have the "best" butterflies, including Riodinidae, Lycaenidae & Hesperiidae!
www.kickstarter.com/projects/dgb...
Butterflies of Eastern Ecuador & Peru: Volume 2
Continuing work on this pioneering field guide to tropical South American butterflies.
www.kickstarter.com
April 28, 2025 at 6:09 PM
Four days left to support Dave Geale's Butterflies of Eastern Ecuador & Peru: Volume 2.
This volume will have the "best" butterflies, including Riodinidae, Lycaenidae & Hesperiidae!
www.kickstarter.com/projects/dgb...
This volume will have the "best" butterflies, including Riodinidae, Lycaenidae & Hesperiidae!
www.kickstarter.com/projects/dgb...
Guatemalan Copper (Iophanus pyrrhias). We were excited to get close views of this butterfly! La Paz Department, Honduras. March 2025
April 23, 2025 at 7:42 PM
Guatemalan Copper (Iophanus pyrrhias). We were excited to get close views of this butterfly! La Paz Department, Honduras. March 2025
Reposted by John Christensen
Awesome new paper by @lucalivraghi.bsky.social et al.
doi.org/10.1016/j.cu...
in @currentbiology.bsky.social
on the evo-devo of a butterfly color variation
enjoy the show!
doi.org/10.1016/j.cu...
in @currentbiology.bsky.social
on the evo-devo of a butterfly color variation
enjoy the show!
April 14, 2025 at 2:53 AM
Awesome new paper by @lucalivraghi.bsky.social et al.
doi.org/10.1016/j.cu...
in @currentbiology.bsky.social
on the evo-devo of a butterfly color variation
enjoy the show!
doi.org/10.1016/j.cu...
in @currentbiology.bsky.social
on the evo-devo of a butterfly color variation
enjoy the show!
Granular Glass Frog (Cochranella granulosa) tadpoles developing inside a gelatinous mass. This leaf was about 7 feet above a small creek. Panama. January 2025
February 6, 2025 at 5:04 PM
Granular Glass Frog (Cochranella granulosa) tadpoles developing inside a gelatinous mass. This leaf was about 7 feet above a small creek. Panama. January 2025
Eugenysa coscaroni. A tortoise beetle, but looks more like a smiling strawberry to me. Panama. January 2025
February 1, 2025 at 6:51 PM
Eugenysa coscaroni. A tortoise beetle, but looks more like a smiling strawberry to me. Panama. January 2025
David on Goliath.
Geometer moth Tricentra euriopis on silkmoth Rhescyntis hippodamia. Panama. January 2025.
Geometer moth Tricentra euriopis on silkmoth Rhescyntis hippodamia. Panama. January 2025.
January 27, 2025 at 6:50 PM
David on Goliath.
Geometer moth Tricentra euriopis on silkmoth Rhescyntis hippodamia. Panama. January 2025.
Geometer moth Tricentra euriopis on silkmoth Rhescyntis hippodamia. Panama. January 2025.
Send in the clowns. That's how I'm feeling today.
Two Arctiinae moths, Idalus perlineosa and Phaeomolis lineatus. Panamá Province, Panama. January 2025
Two Arctiinae moths, Idalus perlineosa and Phaeomolis lineatus. Panamá Province, Panama. January 2025
January 21, 2025 at 10:08 PM
Send in the clowns. That's how I'm feeling today.
Two Arctiinae moths, Idalus perlineosa and Phaeomolis lineatus. Panamá Province, Panama. January 2025
Two Arctiinae moths, Idalus perlineosa and Phaeomolis lineatus. Panamá Province, Panama. January 2025
The Sky-blue Hairstreak (Pseudolycaena damo). Such a stunning butterfly! Coclé Province, Panama. January 2025.
January 17, 2025 at 7:41 PM
The Sky-blue Hairstreak (Pseudolycaena damo). Such a stunning butterfly! Coclé Province, Panama. January 2025.
Began 2025 in beautiful Panama. Metalmark butterflies can be hard to photograph because they often land on the underside of leaves. This one cooperated amazingly well as I leaned in to get a viewing angle.
Hypophylla zeurippa. Coclé Province, Panama. January 2025
Hypophylla zeurippa. Coclé Province, Panama. January 2025
January 17, 2025 at 2:39 PM
Began 2025 in beautiful Panama. Metalmark butterflies can be hard to photograph because they often land on the underside of leaves. This one cooperated amazingly well as I leaned in to get a viewing angle.
Hypophylla zeurippa. Coclé Province, Panama. January 2025
Hypophylla zeurippa. Coclé Province, Panama. January 2025
Reposted by John Christensen
Mary Tyler Moore starred in Mary, the ill fated variety show/sitcom that lasted three episodes.
The show did introduce us however to castmates Michael Keaton and David Letterman.
The show did introduce us however to castmates Michael Keaton and David Letterman.
December 29, 2024 at 6:46 PM
Mary Tyler Moore starred in Mary, the ill fated variety show/sitcom that lasted three episodes.
The show did introduce us however to castmates Michael Keaton and David Letterman.
The show did introduce us however to castmates Michael Keaton and David Letterman.
The Brown Wasp Mantidfly (Climaciella brunnea) is a convincing wasp mimic that sits on flower heads awaiting prey. The bottom left shows one eating a plume moth. The bottom right includes my thumb for scale. They are tiny and easy to miss.
#MantidflyAppreciationDay
#MantidflyAppreciationDay
December 12, 2024 at 8:43 PM
The Brown Wasp Mantidfly (Climaciella brunnea) is a convincing wasp mimic that sits on flower heads awaiting prey. The bottom left shows one eating a plume moth. The bottom right includes my thumb for scale. They are tiny and easy to miss.
#MantidflyAppreciationDay
#MantidflyAppreciationDay
Mantidflies sometimes show up at moth sheets and enjoy the insect smorgasbord. Top left is Beautiful Mantidfly (Leptomantispa pulchella) and bottom left is genus Plega.
#MantidflyAppreciationDay
#MantidflyAppreciationDay
December 12, 2024 at 8:31 PM
Mantidflies sometimes show up at moth sheets and enjoy the insect smorgasbord. Top left is Beautiful Mantidfly (Leptomantispa pulchella) and bottom left is genus Plega.
#MantidflyAppreciationDay
#MantidflyAppreciationDay
Mantidflies are amazing little predatory insects. Here we have four species common in the US: Brown Wasp Mantidfly (Climaciella brunnea), Green Mantidfly (Zeugomantispa minuta), Say's Mantidfly (Dicromantispa sayi), and Four-spotted Mantidfly (Dicromantispa interrupta).
#MantidflyAppreciationDay
#MantidflyAppreciationDay
December 12, 2024 at 8:15 PM
Mantidflies are amazing little predatory insects. Here we have four species common in the US: Brown Wasp Mantidfly (Climaciella brunnea), Green Mantidfly (Zeugomantispa minuta), Say's Mantidfly (Dicromantispa sayi), and Four-spotted Mantidfly (Dicromantispa interrupta).
#MantidflyAppreciationDay
#MantidflyAppreciationDay
Papilio euterpinus. The ventral is mostly black but camera flash add some color. Dorsal has a splashy stripe. Napo. Ecuador. #BlackFriday
November 29, 2024 at 4:16 PM
Papilio euterpinus. The ventral is mostly black but camera flash add some color. Dorsal has a splashy stripe. Napo. Ecuador. #BlackFriday
Thankful for the Lions!
November 28, 2024 at 5:08 PM
Thankful for the Lions!
A spectacular hairstreak, Mithras nautes. I hoped to finally see one and ended up seeing seven on the trip! Females brown and males blue. Madre de Dios, Peru. August 2023
November 26, 2024 at 7:53 PM
A spectacular hairstreak, Mithras nautes. I hoped to finally see one and ended up seeing seven on the trip! Females brown and males blue. Madre de Dios, Peru. August 2023
I paid about $9 to BlueArk to import all of my Twitter posts since 2009 into Bluesky. They are just starting to appear...so far so good.
It's kind of hard to find by Google, so go here if interested (blueark.app). First step was to request a timeline download from Twitter.
It's kind of hard to find by Google, so go here if interested (blueark.app). First step was to request a timeline download from Twitter.
November 18, 2024 at 2:13 PM
I paid about $9 to BlueArk to import all of my Twitter posts since 2009 into Bluesky. They are just starting to appear...so far so good.
It's kind of hard to find by Google, so go here if interested (blueark.app). First step was to request a timeline download from Twitter.
It's kind of hard to find by Google, so go here if interested (blueark.app). First step was to request a timeline download from Twitter.
Catasticta colla punctata sipping at an orange mineral seep. Near Pacchayoq, upper Manu Road, Peru.
November 17, 2024 at 10:23 PM
Catasticta colla punctata sipping at an orange mineral seep. Near Pacchayoq, upper Manu Road, Peru.
Dukes' Skipper nectaring on buttonbush. Lucas County, Ohio. June 2024
November 18, 2024 at 1:58 PM
Dukes' Skipper nectaring on buttonbush. Lucas County, Ohio. June 2024
Northern Barrens Tiger Beetle (Cicindela patruela). Allegan County, Michigan. 15 June 2024
November 18, 2024 at 1:58 PM
Northern Barrens Tiger Beetle (Cicindela patruela). Allegan County, Michigan. 15 June 2024
This lil one chased off a Wilson's Warbler I was trying to photograph. Hard to be mad though...
Philadelphia Vireo. Tawas Point, Michigan.
Philadelphia Vireo. Tawas Point, Michigan.
November 18, 2024 at 1:58 PM
This lil one chased off a Wilson's Warbler I was trying to photograph. Hard to be mad though...
Philadelphia Vireo. Tawas Point, Michigan.
Philadelphia Vireo. Tawas Point, Michigan.
Brewster's Warbler (Golden-winged x Blue-winged hybrid). Monroe County, Michigan. May 2024
November 18, 2024 at 1:58 PM
Brewster's Warbler (Golden-winged x Blue-winged hybrid). Monroe County, Michigan. May 2024
Super fresh! Eastern Pine Elfin yesterday in Washtenaw County, Michigan. 1 May 2024
November 18, 2024 at 1:58 PM
Super fresh! Eastern Pine Elfin yesterday in Washtenaw County, Michigan. 1 May 2024
Why did the Sora cross the road?
No, really. Why?
No, really. Why?
November 18, 2024 at 1:58 PM
Why did the Sora cross the road?
No, really. Why?
No, really. Why?