SURVEY
California Butterflies
Vollmer Peak, Tilden Regional Park, Alameda County, CA, USA
| Date | 6/13/2026, 5:02:00 PM |
|---|---|
| Duration | 206 minutes |
| Surveyors | 3 |
| Coordinates | |
| Protocol |
Targets (23 / 253)
- Unknown Papilionid (family Papilionidae) 1
- Unknown Skipper (family Hesperiidae) 2
- Unknown Lycaenid (family Lycaenidae) 7
- Unknown Nymphalid (family Nymphalidae) 3
- Unknown Butterfly (superfamily Papilionoidea) 18
- Common Checkered-Skipper and Allies (complex Burnsius communis) 1
- Field Crescent (Phyciodes pulchella) 4
- Rural Skipper (Ochlodes agricola) 18
- Checkered White (Pontia protodice) 2
- Common Ringlet (Coenonympha california) 3
- Western Tiger Swallowtail (Papilio rutulus) 4
- Cabbage White (Pieris rapae) 4
- Acmon Blue (Icaricia acmon) 12
- Umber Skipper (Lon melane) 9
- Variable Checkerspot (Euphydryas chalcedona) 3
- Gray Buckeye (Junonia grisea) 50
- Orange Sulphur (Colias eurytheme) 11
- Mylitta Crescent (Phyciodes mylitta) 23
- Gray Hairstreak (Strymon melinus) 4
- Anise Swallowtail (Papilio zelicaon) 10
- Painted Lady (Vanessa cardui) 2
- Mournful Duskywing (Erynnis tristis) 12
- Pale Swallowtail (Papilio eurymedon) 10
Incidentals (4)
- Whites, Yellows, and Sulphurs (family Pieridae) 4
- New World Checkered-Skippers (Burnsius) 1
- Duskywings (Erynnis) 1
- Ladies and Related Admirals (Vanessa) 1