Tag Archives: Cecropia Moth


Nine Piping Plovers napping Gloucester copyright Kim SmithNine Piping Plovers Napping 

WONDERFUL creatures are currently migrating through our shores. How blessed are we who live along the Atlantic Flyway. Whether traveling by shore or by sea, there is this great and continual movement of life happening always in our midst.

Many thanks to my friend Jeff Denoncour, Trustees of Reservations Ecologist for the Northeast Region, for assistance with identifying the birds. I met Jeff earlier this summer when he kindly took me out to the tippy far end of Cranes to film the Piping Plovers nesting there.

Additionally we have seven tiny Monarch caterpillars in terrariums. It’s so late in the season for these teeny ones. Last year at this time we were releasing adult butterflies and I worry that they are not going to pupate in time to successfully migrate to Mexico. The caterpillars are too small to handle, but if any of the kids in our community would like to come see, please comment in the comment section or email me at kimsmithdesigns@hotmail.com. The last of the Cecropia Moth caterpillars has not yet pupated and he is fun to watch as well.

Here are some photos to help you identify our migrating feathered friends.

Black bellied Plover Semipalmated Plover Massachusetts copyright Kim Smith

Compare the larger size of the Black-bellied Plover in the foreground with the Semipalmated Plover and Semiplamated Sandpiper in the background

Yellow Legs

Red Knot non breeding plumage copyright Kim Smith

The above group of four photos are of either a pair of Red Knots or White-rumped Sandpipers in non breeding plumage. The White-rumped Sandpiper is thought to migrate an even greater distance than the Red Knot, from Canada’s Arctic Islands to the Southern tip of South America, and some further still to islands near the Antarctic Peninsula. These shy birds did not allow for human interest and the photos were taken at some distance.

Juvenile Laughing Gull copyright Kim Smith

Juvenile Laughing Gull

Laughing Gull copyright Kim SmithAdult Laughing Gull


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The first of our Cecropia Moth caterpillars, nicknamed Mothra, is in the process of spinning her winter home, a fine silken enclosure. With the gossamer threads, she has woven several branches together, forming a V-shaped structure to secure the cocoon.

Cecropia Moth Cocoon detail 2 copyright Kim Smith

Surrounding leaves, like a blanket, are arranged around the cocoon and also secured with silk threads. The house is quite large, about four inches long and an inch and a half in diameter. As you can see from the Instagram, she has room enough to easily move within the cocoon. When completed, she will pupate within the case. Come next spring, Mothra will emerge from her winter home ready to mate and deposit eggs of the next generation. The circle of life continues.Cecropia Moth Cocoon detail copyright Kim Smith

Mothra spinning her winter home, from the inside out 🌻

A video posted by Kim Smith (@kimsmithdesigns) on

Cecropia Moth Cocoon copyright Kim SmithCecropia Moth caterpillar copyright Kim Smith
cecropia-moth-male-copyright-kim-smithMothra’s Dad


Cecropia Moth caterpillar copyright Kim SmithCecropia Moth Caterpillar

So many thanks to my new friend Lauren, who generously shared cuttings from her American Birch Tree growing in her fantastic habitat garden. Her garden paradise is a pollinator’s dream, filled with gorgeous flowering and fruiting trees and shrubs, native wildflowers, and non-invasive well-behaved ornamental plants. While we were chatting, a Monarch flew on the scene, pausing to nectar at her butterfly bush! Mothra and her siblings thank Lauren, too.



Do any of our dear readers have a Paper Birch tree with some low hanging branches that I could cut? The branches need to be low enough for me to reach with a pair of pruners. Don’t worry, it won’t harm the tree. The foliage is needed for our ginormous and still growing Cecropia Moth caterpillars. Please leave a comment in the comment section or feel free to email me at kimsmithdesigns@hotmail.com. Thank you!

Birch tree Niles Pond moonlight copyright Kim Smith

Paper Birch in the moonlight Niles Pond


Cecropia caterpillar on the move 🌻

A video posted by Kim Smith (@kimsmithdesigns) on

Beautiful caterpillar of the beautiful Cecropia moth, North America's largest species of Lepidoptera

A photo posted by Kim Smith (@kimsmithdesigns) on

Don’t you love the colors of the third stage, or instar, of the Cecropia Moth caterpillar? Only about an inch and a half long in the photo, in the final fifth instar, before it pupates into a cocoon, the caterpillar will be as large as a large man’s thumb.

Cecropia moth Caterpilla mid instar. copyright Kim SmithIn its second instar in the above photo, the caterpillar resembles the developing birch flower catkins. This is an evolutionary form of mimicry against predation by birds. Cecropia Moth caterpillars eat not only the foliage of American White Birch trees, but also other species of birch trees, apple, ash, beech, elm, lilac, maple, poplar, Prunus and Ribes species, white oak, and willow.

Cecropia Moth caterpillar early instar copyright Kim SmithFirst instar Cecropia Moth Caterpillars

Thank you so much again to my friend Christine for the gift of the Cecropia moth eggs. 


As you’ll hear in Sunday night’s podcast (our 191st!!), the Piping Plover’s nesting continues. The Plovers are defending their territory against predators, using the “injured wing” trick. Learn more about this defensive behavior in the podcast.

In this batch of photos you can see how to tell the difference between the male and female.

Female Piping Plover copyright Kim SmithThe female’s neck collar, or band, is broken in the front and is paler in color.
Male Piping Plover copyright Kim Smith

The male’s neck collar is darker and goes nearly all the way around. Note too the black bar across his forehead.

Male and Female Piping Plover copyright Kim SmithGenerally speaking, the male is a bit larger and the bill a bit brighter orange (male left, female right). After the breeding season, the plumage of both male and female will become paler.

Mr. Swan is doing well and looking very healthy, but with no signs of a new Mrs. on the horizon. Here he is enjoying a stretch in the sun.Mr. Swan outstretched wings Niles Pond coyright Kim Smith

Our caterpillars of the beautiful Cecropia Moth, given by friend Christine, are in their second instar and growing rapidly on a steady diet of birch leaves. The Cecropia Moth is just one of the many reasons why we would never spray trees with pesticides and herbicides.

A HUGE SHOUT OUT to Gloucester’s drinking water chief engineer Larry Durkin and to Senator Bruce Tarr for working hard to keep glyphosate (Monsanto’s Roundup) out of our water supply. Glyphosate is a known carcinogen and extremely bad news for bees, butterflies, and all pollinators. Durkin is pressing Keolis, the company that operates the MBTA commuter rail track service, to cut its use of glyphosate along the track adjacent to the Babson Reservoir and to manually cut back the growth.  Read the full story here in the Gloucester Times.

Cecropia Moth caterpillars copyright Kim SmithCecropia Moth Caterpillars


Cecropia Moth Male copyright Kim Smith

Christine holding male Cecropia Moth

This newly emerged Cercropia Moth, the largest species of Lepidoptera found in North America, was photographed at the home of my new friend Christine. She lives on the backshore of Gloucester and, with her friend Jane, who lives on the opposite side of Gloucester in the Lanesville area, are trying to repopulate Cape Ann with several species of the stunning and charismatic moths of the Saturn Family. These include the Cecropia Moth (commonly called Robin Moth), Luna Moth, and Polyphemus Moth.

Where formerly abundant, these most beautiful members of the native Giant Silkworm Moth group of Lepidoptera are at extreme risk of becoming extirpated (extinct from a region). Christine recalls a time when she could easily find the cocoons in her neighborhood. Now she finds none. The reasons for their decline are severalfold; loss of habitat, the poison in the pesticides sprayed on trees is highly toxic to all insects, and because they are suffering from a parasitism by a tachinid fly (Compsilura concinnata) that was introduced to control the Gypsy Moth. Each and every person on Cape Ann can help these moths make a comeback by making a commitment to not use pesticides and herbicides, for any reason, ever.

Cecropia moth cocoon copyright Kim Smith

Cecropia Moth cocoon

Christine and Jane purchase the cocoons at Magic Wings in Deerfield, MA. They place the cocoons in the screened butterfly house where they have also placed branches of the caterpillar’s food plant (in this case, birch branches). Cecropia Moth caterpillar food plants include the foliage of maple, birch, ash, apple, cherry, and lilac.

Screened butterfly cage-house copyright Kim Smith

If both male and female are present, they will mate almost immediately, within the first day or two, and the female will begin depositing eggs soon after. She releases the eggs on nearly every surface within the enclosure, dozens and dozens of eggs, up to 100!

Cecropia moth eggs copyright Kim Smith

Cecropia Moth eggs

If the eggs are viable, within several weeks, the caterpillars will chew their way out of the egg casing and begin to eat the caterpillar food plants provided.

Perhaps like Christine and Jane who, moth by moth, are trying to save our native Giant Silkworm Moths, you’ll be inspired to raise these North American beauties, too!

More photos to come if a batch of caterpillars emerges.

Stunning Cecropia Moth, landed on my sleeve and warming its wings.

A video posted by Kim Smith (@kimsmithdesigns) on

Planting in Harmony with Nature

The following excerpt I wrote over fifteen years ago. The article was later adapted for my book Oh Garden of Fresh Possibilities! (available at my publisher’s website-click here). Yesterday’s post about how planting for wild bees and butterflies can save farmers money reminded me of the chapter “Planting in Harmony with Nature”.

Cecropia Moth ©Kim Smith 2011Male Cecropia Moth on Magnolia virginiana foliage

“The idea of a garden planted in harmony with nature is to create a loosely mixed arrangement of beauty combining native and well-behaved ornamental flowering trees and shrubs. This informal style of a woodland border or bucolic country hedge is not new and is what the French call a haie champêtre. Perhaps the country hedge evolved because it was comprised of easily propagated, or dispersed by wildlife, native species of plants and perhaps as a revolt against the neatly manicured boxed hedges of formal European gardens.

The country hedge is used, as is any hedge, to create a physical and visual boundary, but rather than forming the backdrop for ornamental plants, it is the show. By planting with a combination of native trees and shrubs, whether developing the framework of a new garden, designing a garden room, or extending an existing garden, one can create an interplay of plants drawing from a more widely varied collection of forms, textures, and colors. The framework is the living tapestry of foliage, flowers, fruit and fauna. Working and living in our garden rooms, we are enchanted by the wild creatures drawn to the sheltering boughs, blossoms, and berries. Additionally, by choosing to grow a combination of companionable fragrant North American trees and shrubs, designing a garden planted for a well-orchestrated symphony of sequential and interwoven scents is decidedly easier. We tend to be more familiar with ornamental trees and shrubs because they are readily obtained through the nursery trade. With the accessibility to resources available through the internet we can design with an increasing selection of native species.”

For the homeowner, Oh Garden of Fresh Possibilities!, a Boston Globe best-of, is chockablock full of design ideas for attracting pollinators to your garden, including extensive information about specific plants, plant combinations, and their cultivation. Oh Garden also makes a terrific gift book, at any time of year, but especially in the spring as we begin to see the earth reawakening and are seeking fresh design ideas and inspiration.

Read more about Oh Garden on my website, Kim Smith Designs ~ Click here.

Magnolia virginiana ©Kim Smith 2011 copyMagnolia virginiana is one of the most deliciously scented flowering trees you could grow. And the foliage is a caterpillar food plant for the fabulous Cecropia Moth, North America’s largest species of Lepidoptera. The above male Cecropia Moth found in our garden had a wingspan of six inches!



Lecture Tonight at the Seaside Garden Club

Lecture Tonight at 7:30 at the Manchester Community Center: Oh Garden of Fresh Possibilities! ~ Notes from a Gloucester Garden.

Cabbage White Butterflies mating in Cornus florida ©Kim Smith 2009

Cabbage White Butterflies Mating in the Native Flowering Dogwood Foliage 

The lecture tonight is based on the book of the same name, which I wrote and illustrated. In it I reveal how to create the framework, a living tapestry of flora, fauna, and fragrance that establishes the soul of the garden. Using a selection of plant material that eliminates the need for pesticides and herbicides, and guided by the plants forms, hues, and horticultural demands, we discuss how to create a succession of blooms from April through November. This presentation is as much about how to visualize your garden, as it is about particular trees, shrubs, vines, perennials, and annuals. Illuminated with photographs, and citing poetry and quotations from Eastern and Western cultural influences, this presentation engages with an artist’s eye while drawing from practical experience.

For a complete lit of my 2013 – 2014 programs and workshops, visit the Programs and Lectures page of my blog.

Cecropia Moth ©Kim Smith 20009

The Cecropia Moth, or Robin Moth (Hyalophora cecropia) is the largest moth found in North America, with a wingspan of up to six inches. He is perched on the foliage of our beautiful native Magnolia virginiana (Sweetbay Magnolia), one of several of the caterpillar’s food plants. You can tell that he is a male because he has large, feathery antennae, or plumos, the better for detecting scent hormones released by the female. This photo was taken in our garden in early June.

The Manchester Community Center is located at 40 Harbor Point, Manchester.

Cecropia Moth emerges at Long Beach from Christine Morey

Look what emerged from it’s crysalis last week!!  Amazing, and I understand they are nocturnal, so few people ever see them!

The video is grainy – I haven’t used that function before – but worth watching him stretch out after getting out of his tiny pod!

Wingspan of over 5", covered in a beautiful orange fur!

Stayed, stretched, and rested for the day, gone in the morning!

Research I found:




from Christine Morey at Annabelle’s Pet Care