| Date | Change |
|---|---|
| 5/26/23 | Added one photo of Western Pine Elfin. |
| 5/24/21 | Added one photo of Red Admiral. |
| 7/28/19 | Added Silver-spotted Skipper. |
| 5/28/19 | Added one photo of Painted Lady. |
| 2/6/19 | Added two photos of Greenish Blue. |
| 5/27/18 | Added one photo of Variable Checkerspot. |
| 5/23/18 | Added Sleepy Duskywing. |
| 5/15/18 | Added one photo of Common Buckeye. |
| 4/6/18 | Added Arctic Skipper. |
| 10/6/17 | Added one photo of Fiery Skipper. |
| 8/16/17 | Added one photo of Woodland Skipper. |
| 8/3/17 | Added on photo each of Clodius Parnassian, Ruddy Copper, and Sonoran Skipper. |
| 8/2/17 | Added Field Crescent. |
| 7/16/17 | Added one photo of Gray Hairstreak. |
| 7/14/17 | Added one photo of Eastern Tailed-Blue. |
| 6/8/17 | Added one photo of Margined White. |
| 6/5/17 | Added one photo of Columbian Skipper and one photo of Western Green Hairstreak. |
| 5/17/17 | Added one photo of Mournful Duskywing and one photo of Northern Cloudywing. |
| 5/10/17 | Added Boisduval's Blue and two photos of Northern Checkerspot. |
| 5/8/17 | Added Sonoran Skipper and one photo of Spring Azure. |
| 5/5/17 | Added one photo of Umber Skipper. |
| 4/29/17 | Added one photo of Northern Cloudywing. |
| 4/4/17 | Added one photo of Northern Cloudywing. |
| 4/2/17 | Added one photo of Brown Elfin. |
| 3/28/17 | Added one photo of Spring Azure and one photo of Pacific Orangetip. |
| 3/21/17 | Added one photo of Coastal Green Hairstreak. |
| 3/20/17 | Added one photo of Moss's Elfin (ssp. bayensis). |
| 7/17/16 | Added Marine Blue. |
| 7/16/16 | Added one photo of Clodius Parnassian. |
| 4/16/16 | Added one photo of Gray Hairstreak and one photo of Northern Cloudywing. |
| 1/2/16 | Added American Lady. |
| 10/26/15 | Added Moss's Elfin (ssp. bayensis). |
| 10/9/15 | Added Gulf Fritillary. |
| 10/8/15 | Added two photos of Eastern Tailed-Blue. |
| 8/12/15 | Added Eastern Tailed-Blue. |
| 7/22/15 | Added two photos of Cabbage White. |
| 7/7/15 | Added three photos of Purplish Copper. |
| 5/6/15 | Added Northern Cloudywing. |
| 3/2/15 | Added five photos of Mourning Cloak. |
| 4/25/14 | Added one photo of West Coast Lady. |
| 2/25/14 | Added two photos of Margined White. |
| 7/14/13 | Added California Dogface. |
| 6/28/13 | Added one photo of Common Ringlet. |
| 9/2/12 | Added five photos of Woodland Skipper. |
| 7/14/12 | Added Pale Swallowtail and Common Wood-Nymph. Added four photos of Callippe Fritillary (ssp. liliana), one photo of Golden Hairstreak, and one photo of Spring Azure. |
| 7/10/12 | Added three photos of Hedgerow Hairstreak and two photos of Mountain Mahogany Hairstreak. |
| 7/9/12 | Added Boisduval's Blue (ssp. parapheres). |
| 6/20/12 | Added Common Buckeye. |
| 6/3/12 | Added one photo of Umber Skipper. |
| 6/26/11 | Added one photo of Western Tiger Swallowtail. |
| 6/25/11 | Added Cabbage White. |
| 6/24/11 | Added one photo each of Mourning Cloak, Common Ringlet, and Umber Skipper. |
| 6/2/11 | Added two photos of Silvery Blue and one photo of Coastal Green Hairstreak. |
| 5/29/11 | Added two photos of Umber Skipper. |
| 5/24/11 | Added Mournful Duskywing. |
| 5/17/11 | Added three photos of Western Pine Elfin and three photos of Silvery Blue. |
| 5/4/11 | Added Western Pine Elfin, one photo of Spring Azure, and one photo of Mylitta Crescent. |
| 5/2/11 | Added one Two-banded Checkered-Skipper photo. |
| 4/13/11 | Added one Moss' Elfin photo. |
| 3/18/11 | Added Margined White, Lustrous Copper, Edith's Copper, Sooty Hairstreak, and Friday's Blue. |
| 3/15/11 | Added Ruddy Copper. |
| 2/9/11 | Added Pacific Orangetip. |
| 2/3/11 | Added Sylvan Hairstreak (ssp. sylvinus), Hedgerow Hairstreak, and Pacific Fritillary. |
| 1/30/11 | Added Lindsey's Skipper and Callippe Fritillary. |
| 1/28/11 | Added Mylitta Crescent and one photo of Acmon Blue. |
| 1/21/11 | Added Mourning Cloak. |
| 9/15/10 | Added Woodland Skipper. |
| 7/24/10 | Added Red Admiral and one photo of Western Tiger Swallowtail. |
| 7/19/10 | Added one Satyr Comma photo. |
| 7/9/10 | Added Leanira Checkerspot. |
| 7/7/10 | Added Great Copper. |
| 6/19/10 | Added one Painted Lady photo. |
| 6/16/10 | Added Muir's Hairstreak and Edith's Checkerspot. |
| 10/10/09 | Added Zerene Fritillary. |
| 7/21/09 | Added Western Tiger Swallowtail, Coastal Green Hairstreak, and Satyr Comma. |
| 7/18/09 | Added one Acmon Blue photo. |
| 4/26/08 | Added two Northern Checkerspot photos. |
| 7/10/07 | Added Acmon Blue. |
| 7/9/07 | Added Blue Copper. |
| 6/29/07 | Added Sheridan's Hairstreak and Lorquin's Admiral. |
| 6/28/07 | Changed California Marble to Large Marble after review of Field Guide to Butterflies of the San Francisco Bay and Sacramento Valley Regions by Shapiro and Manolis (2007). |
| 5/31/07 | Added California Hairstreak, Gray Hairstreak, and California Tortoiseshell. Added a California Sister photo. |
| 10/31/05 | Added Umber Skipper. Added a Variable Checkerspot (caterpillar) photo. |
| 7/5/05 | Added West Coast Lady. |
| 6/17/05 | Added Moss' Elfin, California Sister, and Rural Skipper. |
| 6/13/05 | Added Gray Marble, Golden Hairstreak, Sylvan Hairstreak, Mountain-Mahogany Hairstreak, and Common Ringlet. Added a Painted Lady photo. |
| 6/12/05 | Added Common Checkered-Skipper. Added a Gorgon Copper photo and a Northern Checkerspot photo. |
| 5/29/05 | Added Painted Lady. |
| 10/16/04 | Added Fiery Skipper and Sandhill Skipper. |
| 7/11/04 | Added Silvery Blue, Sagebrush Checkerspot, and Mohave Sootywing. |
| 7/10/04 | Added additional photos of Greenish Blue and Northern White-Skipper. |
| 7/1/04 | Added Pacuvius Duskywing. |
| 6/27/04 | Added Milbert's Tortoiseshell. |
| 6/26/04 | Added San Emigdio Blue and Greenish Blue. |
| 6/25/04 | Added Purplish Copper. |
| 6/7/04 | Added Pacific Dotted-Blue. |
| 6/4/04 | Added Brown Elfin, Spring Azure, and Two-banded Checkered-Skipper. |
| 5/1/99 - 6/4/04 | Started web page and added many butterfly photos. |