SURVEY
California Butterflies

Bort meadow staging area, Anthony Chabot Regional Park, Contra Costa County, CA, USA

Date 6/7/2026, 8:13:24 PM
Duration 79 minutes
Surveyors 1
Coordinates

37.77671465, -122.12302115

Protocol

California Butterflies

Targets (12 / 253)

  • Unknown Lycaenid (family Lycaenidae)
    2
  • Propertius Duskywing (Erynnis propertius)
    1
  • Rural Skipper (Ochlodes agricola)
    7
  • Western Tiger Swallowtail (Papilio rutulus)
    1
  • Acmon Blue (Icaricia acmon)
    2
  • Umber Skipper (Lon melane)
    3
  • Gray Buckeye (Junonia grisea)
    47
  • American Lady (Vanessa virginiensis)
    1
  • Echo Azure (Celastrina echo)
    1
  • Mylitta Crescent (Phyciodes mylitta)
    4
  • Gray Hairstreak (Strymon melinus)
    1
  • Mournful Duskywing (Erynnis tristis)
    10

Incidentals (1)

  • Whites, Yellows, and Sulphurs (family Pieridae)
    1