Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

  Sighting 1176437

Queen Alexandra's Sulphur
Colias alexandra

Observation date: July 21, 2018
Submitted by: A_baldini
Specimen type: Photograph
Observation notes: Time: ~11:00 a.m. Weather: Hot, calm, and partly cloudy, with a very nearby bank of thunderstorms. Habitat: Small, thistle-filled trailside clearing in a sparse montane pine forest. Notes: This sulphur seemed much more similar to the Scudder's Sulphurs from last year, both in terms of size (smaller than most of the other sulphurs around) and appearance (prominent black borders on the dorsal side). It unfortunately passed away despite my best attempts to feed it sugar water, and most of its abdomen was eaten by ants. I managed to get these pictures before it was too late.
Status: Resident
Verified by: mikefisher
Verified date: October 11, 2018
Coordinator notes: Based on the color and wing shape I identify this as a really worn sulphur as Alexandra. The border is variable in width, especially alexandra and the wings are stubbier on both sexes and the yellow of a bit darker tone on Scudder's. I think that time of year Scudder's would be in better condition too and its a bit low of altitude for this species. Mike
Checklist region(s): Larimer County, United States, Colorado