Central Arizona Butterfly Association

Phoenix Chapter of the North American Butterfly Association.

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To the Central Arizona Butterfly Association (CAzBA) Website

The mission of CAzBA is to promote the enjoyment of recreational butterflying by providing educational, research, and recreational opportunities to schools and the public throughout central Arizona.

Weidemeyers Admiral

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Meetings and Events

Meetings are held mostly in the winter, and outdoor fieldtrips during the rest of the year. Depending on the temperatures, we will go to higher elevation areas to stay comfortable. Check our events schedule for details

Butterflying Locations

Click here for information on where to look for butterflies in Central Arizona


Click here for a checklist of butterflies of Arizona
Check List of Arizona Butterflies


Recent news

3/30/2024      Status of Butterflies in the United States by John Wesley Powell Center

As part of a USFWS -USGS Powell Center funded Working Group, we evaluated trends in abundance for all butterfly species across the United States, using data from 35 monitoring programs. Almost a quarter of these species were declining at their range-wide continental scale and over half of the species declining in at least one USFWS region. Butterfly species are declining across all butterfly families and ecological traits provide little predictive power in explaining overall trends. However, almost a quarter of the species were increasing in at least one USFWS region. We discuss biases in these data with respect to likely drivers of butterfly declines, as well next steps for developing collaborative efforts across organizations to rebuild butterfly populations. read more »

3/18/2024      Fieldtrip report: Superstition Mountains, 16 March by Ron Rutowski

Twelve of us ventured up the Apache Trail on a day after substantial rain storms moved through central Arizona. The passage of the storm was evident in the visible dusting of snow on Four Peaks and the water flowing over the fords at Tortilla and Mesquite Creeks. No butterflies were seen on our first and brief stop at Tortilla Flat. We moved on to Mesquite Flat where we spent about an hour and saw just one American Snout, although the birding was good (Sage Thrasher, Costa’s Hummingbird, three species of Towhees, etc.). We moved on to the Fish Creek Vista where butterflying was more productive, especially on the hilltop beyond the end of the paved trail. There, we were especially pleased to find a Fulvia Checkerspot (pictured) among the hilltopping species. What started out as a slow day ended with some good sightings. Our list of butterflies for the day is short which is not surprising for a beautiful but cool spring day following a major storm: Pipevine Swallowtail, Gray Hairstreak, American Snout, California Patch, Fulvia Checkerspot, Painted Lady, Red Admiral, Meridian Duskywing. read more »

3/11/2024      Climate Change Leading to Early Butterfly Activity in Central Europe

Climate Change Leading to Early Butterfly Activity in Central Europe read more »

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Upcoming Field Trips and Events

6/15/2024 7:30 AM - 9:30 AM Field trip Boyce Thompson Arboretum with Laura Miller.Boyce Thompson Arboretum
7/20/2024 9:00 AM - 2:00 PM Field trip Aspen Corner with Gail Morris and Marianne Jensen. 
8/17/2024 6:30 AM - 1:30 PM Fieldtrip "up north" with Ron Rutowski 
View all events »