Meeting Times and Locations

Until further notice all Seattle and Spokane meetings will be held online.
See below for more information about each meeting.

Seattle Meetings
Spokane Meetings
Zoom instructions
March 3, 2021 – Susan Waters
March 17, 2021 – David Jennings
April 7, 2021 – Dr. Moria Robinson
April 21, 2021 – Jonathan Pelham
May 5, 2021 – Nathan Morehouse
May 19, 2021 – Glenn Marangelo
Directions Seattle Meeting Map
Directions Spokane Meeting Map



WBA meets in Seattle on the first Wednesday of each month except June through August. Meetings start at 7:00 pm and end at 9:00. The first fifteen minutes are used for social reception and viewing of displays. Seattle meetings are held at the Center for Urban Horticulture at 3501 NE 41st Street, Seattle. See map at the bottom of this page.



WBA meets in Spokane on the 3rd Wednesday of each month. Meetings start at 6:00 and end at 7:30. They are held at the Corbin Art Center, 507 W. 7th Ave (this is the building just below Marycliff off Stevens Avenue), Spokane. See map at the bottom of this page.



For Seattle and Spokane, as of September 2020, all meetings will be using Zoom. They will require pre-registration. See the meeting description below for a link to the invite.

After registering you will receive an email confirmation containing information about joining the meeting.

Most meetings will be recorded so that others can view at a more convenient time.

Please don’t login prior to the meeting time. If you can’t reach us, try a few minutes later. 

Participants will be muted upon entering the meeting to keep background noise at a minimum. Please keep yourselves muted during the meeting unless you are talking.

Wednesday March 3 – Seattle Zoom – Dr Susan Waters

“Pollinators, native prairies, and conservation”

Restoration of Puget Trough/Willamette Valley prairies has been highly successful in reestablishing native plant communities that look beautiful and diverse to a human eye. Yet we still have relatively little understanding of how pollinators respond to restoration. This is an important gap in conservation science, since our prairies host a number of rare species, including native plants that depend on pollinators for successful reproduction. Our program uses plant-pollinator networks to examine the effects of restoration on pollinating insect communities and the interactions that feed back to affect rare plant and insect species.

Susan Waters is the founder and senior research ecologist at Quamash EcoResearch ( Her research focuses on plant-pollinator community dynamics in Cascadia prairies. Susan’s training is in pollination ecology and plant community ecology, with an emphasis on species interactions under climate change. She earned her doctorate at the University of Washington, where her research focused on native-exotic plant interactions mediated by pollinators, and the effects of phenological shifting on those interactions.  She currently studies how prairie plant-pollinator networks change as sites undergo restoration and as native plant populations rebound.

Wednesday March 17 – Spokane Zoom – David Jennings

David Jennings will be presenting on bees.

Great news!

We have a WBA meeting coming up, so mark your calendars!

Date: Wednesday, March 17th 
Time: 6pm-7:30pm

Bumble Bees of Washington State

Come join us for this very exciting and interesting presentation by David Jennings.  He will be presenting information on the bumble bees of our state.  He is knowledgeable on bumble bee biology, ecology and identification. For the past several summers he has traveled Washington photographing bumble bees as a citizen scientist collecting data for Xerces’ Bumble Bee Watch program. David used this past summer’s restriction on field work to share what he learned by constructing a website focused on our bumble bees.  A major focus of the website is “how to ID that bumble bee”.  It also contains information on gardening, conservation and other resources.

David has an academic background in wildlife ecology and conservation and is a former Fish and Wildlife Commissioner. He serves as vice president of the Washington Butterfly Association and on the Black Hills Audubon Society’s conservation committee.

Learn them, respect them, protect them!

Wednesday April 7 – Zoom with Dr Moria Robinson
“Stripes, bands, and blotches – Oh My! the evolution of color and pattern in caterpillars”

Register in advance for this meeting:

Description: Many of us fell in love with butterflies and moths for their remarkable diversity of color and pattern. Whether bright or earth-toned in color, arranged in spots or bands or irregular blotches, their appearance plays an important role: it can conceal from predators, advertise vigor for potential mates, or signal presence of distasteful or toxic compounds in their own bodies. However, while much research has focused on how and why adult butterflies and moths appear the way they do, much less attention is paid to the ‘looks’ of the immature forms. As non-reproductive larvae, moths and butterflies have a singular purpose: eat fast, get big, and metamorphose as soon as possible into an adult – without getting eaten along the way. As popular food items, caterpillars have evolved an array of strategies to avoid predators. They can be incredibly camouflaged; or they can stand out from their background, warning would-be predators away. I have been studying why this diversity of strategies has evolved. Two prominent ideas are that dietarily specialized species – those that eat only a single kind of host plant – will be more effective at sequestering toxins within their bodies, and will therefore advertise their noxiousness with warning (“aposematic”) coloration. A related hypothesis posits that species feeding on woody plants will opt for camouflage, both because woody plants tend not to produce toxins, and because there are more places to hide within an architecturally-complex shrub or tree. Other hypotheses, from the times of Darwin and Wallace, suggested that grass-feeding species should boast a stripe to help them blend in with the shape of grass blades. To test these ideas, we assembled a phylogeny (tree of life) of 1808 species of butterfly and moth in North America, for which photographs of larvae were available. We used many field guides (including from very own David Nunnallee and David James!), and categorized the colors and patterns in each species, as well as information about their diet. We were excited to find that colors and patterns can be grouped into “cryptic/camouflage” and “warning” categories, and that these colorations are related to the kind of plants caterpillars eat. We can thank the plants and the birds – the food and the predators – for the grand and beautiful parade of caterpillar appearance!

Bio: Moria Robinson is a research associate at Michigan State University, where she studies the many ways insects and plants interact. In particular, she is interested in how insects have evolved to eat the great diversity of physical, nutritive, and chemical traits found in plants, and how plants have evolved to fend off their consumers. She grew up on Vashon Island, Washington, where her interest in butterflies was encouraged by the wonderful community of WABA. She went to Middlebury College, Vermont, where she majored in biology and did a senior thesis project on host plant choice of silvery blue butterflies in suburban King County. She went on to receive her PhD from the University of California, Davis, in 2018, studying caterpillar communities in the California chaparral shrub ecosystems, and where the study she is discussing today began. When she is not stuck to her computer screen, Moria enjoys road tripping with her dog, enjoying the desert West with her partner, and photographing caterpillars on whatever plants are nearby 🙂

Wednesday April 21 – Spokane Zoom – Food Plant Guilds with Jonathan Pelham

Great news!

We have a WBA meeting coming up, so mark your calendars!

Date: Wednesday, April 21st

Time: 6pm-7:30pm

Where: Via Zoom – please register for this event by clicking here:

Food Plant Guilds for our Butterflies” – Presented by Jon Pelham

The plants that support the life history of two or more butterfly species, the network of living communities they belong to and some consideration of how this came/comes to be. Bio – Jon Pelham has studied butterflies since he was twelve. He met Robert Michael Pyle in 1967 and he managed to get around Jon’s owly parts. They are colleagues and friends; he is ever grateful that Bob is willing to stand in the klieg lights of public, uh, adoration. Together they have watched their community grow into something not imagined, or hindered, by them. It was/is impossible to educate Jon – he’d rather do it himself, thank you very much! He became a LTL and PUD ‘city’ truck driver instead (less than a load, pick up and delivery). He is a Teamster for life. It supported his family and his habit and keeps him alive presently! Despite himself, the UW Burke Museum found his skills useful and, in 1972, he volunteered to study butterflies under their watch. Yes, he need(ed) watching. Jon has 5 kids, one of which he spawned, all of which he loves dearly. They spent a lot of time in the field with him.

Jon has authored some papers but the most important thing he has accomplished is:
A catalogue of the butterflies of the United States and Canada: with a complete bibliography of the descriptive and systematic literature. A ‘butterfly book’ with well over 600 pages and nary an image of a butterfly! That’s how he rolls! He keep it updated: A catalogue of the butterflies of the United States and Canada

Bob Pyle and Jon Pelham 2008
Bob Pyle and Jon Pelham 2008

Just a few things about zoom and the upcoming meeting:

1) Participants will be muted upon entering the meeting so please keep yourselves muted during the meeting unless you are talking just to keep outside noise levels down

2) Please register in advance for this meeting you can do this by clicking the link below or the same link at the top of the email:

After registering you will receive an email confirmation containing information about joining the meeting.

WBA hopes to see you all there!!!

Wednesday May 5 – Zoom with Nathan Morehouse

Title: Colors, Choices, and Conflict: Evolutionary Insights from the Reproductive Biology of Butterflies

Pieris rapae crucivora - mating pair (Masaki Ikeda)
Pieris rapae crucivora – mating pair (Masaki Ikeda)

Why are male butterflies often more colorful than females? And if female preferences are responsible for the evolution of male colors, what benefits do females enjoy from choosing more colorful males as mates? Dr. Morehouse will tackle these topics and others related to butterfly courtship, mating and reproduction as he discusses recent insights from his research into the colorful lives of these remarkable animals.

Nathan Morehouse
Nathan Morehouse

Dr. Morehouse is an Associate Professor of Biology and Director of the Institute for Research in Sensing at the University of Cincinnati. His research focuses on the visual ecology and evolutionary biology of insects and spiders. He also has strong interests in interdisciplinary research and conversations between science and the arts. More information about him and his life’s work can be found in this recent Q&A published in Currently Biology.

Wednesday May 19 – Spokane Zoom – Glenn Marangelo

Glenn Marangelo from the Missoula Butterfly House and Insectarium will be doing a presentation on bugs!

Maps and Directions

Directions to
Center for Urban Horticulture
in Seattle

From I-5, take the NE 45th Street exit, and head east on 45th Street. Pass through the University District, and down the hill past University Village Shopping Center. Turn right at Mary Gates Memorial Drive, which becomes NE 41st Street. The Center for Urban Horticulture is on the right just as the road turns.

From SR 520/Lake Washington Floating Bridge: Exit at Lake Washington Blvd, and go right, following Montlake Blvd past Husky Stadium. Go right at NE 45th Street, past University Village Shopping Center. Turn right at Mary Gates Memorial Drive, which becomes NE 41st Street. The Center for Urban Horticulture is on the right just as the road turns.

Location of Corbin Art Center in Spokane

Location of Corbin Art Center