The Pandorus Sphinx moth (Eumorpha pandorus) is a large, fascinating insect that often captivates the attention of gardeners and nature enthusiasts alike. Sporting wingspans of up to 4.5 inches, these moths are known for their distinct patterns and, in some cases, a mossy green tinge on their wings source.
While many people are curious about whether these moths are poisonous, it is important to note that the adult Pandorus Sphinx moths are not poisonous. However, the larvae or caterpillars of some sphinx moth species can pose a threat to certain plants, as they are known to feed on foliage and cause damage in gardens source.
Pandorus Sphinx Moth Overview
The Pandorus Sphinx moth, scientifically known as Eumorpha pandorus, is a fascinating species belonging to the Sphingidae family. It is native to North America and can be found in various regions across the continent. They are characterized by their vibrant colors and unique patterns, making them easily distinguishable from other moths.
Their appearances vary, with some individuals exhibiting:
- Mossy green tinge, sometimes appearing pink or white
- Distinctive patterns and colors on their hind wings
- Wingspans of up to 4.5 inches for females, slightly smaller for males
The forewings of the Pandorus Sphinx moth display interesting patterns that aid in identification. These patterns include:
- Dark brown or gray forewings, variably suffused with light gray
- Jagged subterminal lines emphasized by pale scales in the terminal area of the forewing
Pandorus Sphinx moths are just one of the many remarkable species within the sphinx moths group. While other sphinx moths share some of the Pandorus Sphinx’s characteristics, a quick comparison highlights differences:
|Pink, green, or white
|Mossy green or pink, with jagged subterminal lines
|Gray or brown
|Lack subterminal lines, distinct banding
In summary, the Pandorus Sphinx moth is a captivating and easily recognizable moth species native to North America, identifiable by its unique colors, patterns, and wing features.
Life Cycle and Development
Eggs and Larvae
The life of a Pandorus Sphinx moth begins as an egg. These eggs are laid by the female moth on the leaves of host plants, primarily grapevines and Virginia creepers. Once the eggs hatch, the larvae, or caterpillars, emerge and start feeding on the leaves. The caterpillars are green and have a long, curved horn (also known as a caudal horn or tail) at the end of their abdomen. During this stage, the caterpillars go through several instars, or developmental stages, shedding their skin as they grow. In each instar, the color of the caterpillar may vary, and some may have yellow stripes along their bodies.
Pandorus Sphinx caterpillar features:
- Green color
- Long, curved horn/tail on the abdomen
- Can have yellow stripes
Pupa and Adult
After reaching maturity, the caterpillar forms a pupa, usually in the soil beneath the host plant. It remains in the pupal stage for about 2 to 3 weeks. From the pupa, an adult Pandorus Sphinx moth emerges. These moths are in the family Sphingidae and have a long, slender abdomen and a wingspan that ranges from 3 to 4 inches. The adults are strong fliers with elongated forewings, often featuring shades of brown, green, or pink. These moths are most active at dusk, hovering around flowers to feed on nectar through their long proboscis.
Pandorus Sphinx moth characteristics:
- Family Sphingidae (Lepidoptera order, Insecta class)
- Long, slender abdomen
- 3 to 4-inch wingspan
- Elongated forewings
- Active at dusk
Comparison of Pandorus Sphinx moth life stages:
|Laid on host plant leaves; hatch into caterpillars
|Green with long, curved horn/tail; feed on leaves; go through several instars
|Formed in soil; lasts 2 to 3 weeks
|Long, slender abdomen and elongated forewings; 3 to 4-inch wingspan; active at dusk
It’s important to note that Pandorus Sphinx moths are not considered poisonous and their caterpillars pose no threat to humans. They mainly feed on foliage and occasionally on fruits, making them minor pests in some areas.
Habitat and Distribution
The Pandorus Sphinx Moth (Family Sphingidae) is a large, striking moth with a notable distribution across North America. It can be found in habitats ranging from southern Texas to Wisconsin, Nova Scotia, and southern Ontario1. Typical habitats for this moth include woodlands, open or wooded areas near rivers, and suburban gardens2.
Adult Pandorus Sphinx Moths are active from early spring to mid-summer, with wingspans reaching up to 4 ½ inches1. They have a mossy green tinge and sport brown, intricate patterns on their wings1. The moths have long proboscises and are known to fly from flower to flower, feeding on nectar3.
- Potentially large wingspan: up to 4 ½ inches
- Colors: mossy green and brown
- Distribution: North America
- Habitat: woodlands, riverbanks, suburban gardens
The larvae of the Pandorus Sphinx Moth feed on Virginia creeper and wild grapes4. These moths are not considered poisonous or harmful to humans, so no need to worry if you encounter one.
Interaction with Humans and Environment
Gardens and Vineyards
The Pandorus Sphinx Moth, known for its camouflage, feeds on a variety of plant species in gardens and vineyards, such as Vitis spp., Parthenocissus quinquefolia, and Ampelopsis spp. Their larval stage is known to feed on foliage of these plants, including grapevines (Vitis spp.) and Virginia Creeper (Parthenocissus quinquefolia).
While some damage to plant leaves might occur, it is typically not severe enough to significantly impact the health of the plants.
Attraction to Lights
Pandorus Sphinx Moths are attracted to lights at night. They are often found near residential areas, drawn to porch lights and streetlights.
The Pandorus Sphinx Moth is a common species with a wide distribution, ranging from Nova Scotia to South Florida and South Texas. There is no known threat to their population, and no conservation concerns at this time.
- Green to brown caterpillars
- Camouflage with foliage
- Attraction to light
- Wide distribution
- No serious threat to plants
Common Host Plants:
- Grapevines (Vitis spp.)
- Virginia Creeper (Parthenocissus quinquefolia)
- Ampelopsis spp.
|Pandorus Sphinx Moth
|Green, brown, tan
Please note that the Pandorus Sphinx Moth is not known to be poisonous and does not pose any significant threat to humans or the environment.
Over the years, our website, whatsthatbug.com has received hundreds of letters and some interesting images asking us about these insects. Scroll down to have a look at some of them.
Letter 1 – Pandorus Sphinx
I write for a local news paper on the Outer Banks of N.C. I spotted this fascinating creature on the beach, perched on the piling under a pier. Any idea what it is? Thanks for your help.
We hope our little trip home to hot and humid Ohio to plant tomatoes for mom did not interfere with you doing a newspaper article on the lovely Pandorus Sphinx, Eumorpha pandorus. The Pandorus Sphinx is sometimes mistaken for a hummingbird because of its color, shape and flight pattern. Caterpillars feed on grape and Virginia creeper.
Letter 2 – Pandorus Sphinx
Subject: Large moth
Location: Long Island, New York
July 12, 2012 7:23 am
I was on my way home from a friends house when I saw this guy in his back yard. The wings were about 4”-5” across. I looked in the bug guide and the shape and pattern looks like one of the sphinx moths. I’m just posting to see if I can get a confirmation. Also, it didn’t move for two days and was gone by the second night.
You are correct that this is a Sphinx Moth. It is the Pandorus Sphinx, Eumorpha pandorus, and you can get some excellent information on the Sphingidae of the Americas website. If you are interested in learning more about your local moths, you should research your nearest National Moth Week public event.
Letter 3 – National Moth Week Sighting in Ohio: Polyphemus Moth and Pandorus Sphinx
Subject: Two big beautiful moths
Location: Dublin, Ohio
July 24, 2013 1:11 pm
Took the kids to the playground at the local elementary school today, these two big beautiful moths were hanging out in doorways on the school. I know I’ve seen similar pics on your sight before, but I can’t name them off the top of my head. Please enjoy the pics!
Letter 4 – Pandorus Sphinx
Subject: Lime Hawkmoth
Location: Southwestern PA
July 15, 2014 7:39 pm
I believe I have found a lime hawkmoth. I have the specim if it is an actual hawkmoth. I seen in one of the forums that no one has caught one yet. I have a live one and I’m not sure what to do about it.
Signature: C. Kessler
Dear C. Kessler,
You have misidentified your moth. This is not a Lime Hawkmoth which is a European species, though we did receive one report of a sighting from Pennsylvania in 2009. Your moth is a North American species, the Pandorus Sphinx, Eumorpha pandorus. The Sphingidae of the Americas site has additional information on the Pandorus Sphinx. You should release the moth and let it live out its life by mating and reproducing.
Letter 5 – Pandorus Sphinx
Subject: Can you identify this?
Location: South central Mississippi
August 18, 2014 8:46 pm
Found this on shop door in south central Mississippi in August.
This gorgeous moth is a Pandorus Sphinx.
Letter 6 – Pandorus Sphinx
Subject: Pandora Sphinx Moth in PA?
Location: Stroudsburg, Pennsylvania
October 2, 2014 8:07 am
Hey, guys. I just read your article on the two species, and I’m not 100% sure whether this is a Lime Hawkmoth or a Pandora Sphinx. I noticed him clinging to a stone wall on my walk home from work a couple of weeks ago, thought he was very beautiful, and snapped a picture for my photography portfolio. I’ve never seen a moth like this around here before. I live out in the Poconos in Pennsylvania.
Signature: Sierra Stashek
Your moth is definitely a Pandorus Sphinx, and not a Lime Hawkmoth which is a European species. We reported on an isolated incident of a Lime Hawkmoth in Pennsylvania several years ago, but to the best of our knowledge, the species is not established in North America. We recently posted an image of the Caterpillar of a Pandorus Sphinx.
Letter 7 – Pandorus Sphinx
Subject: lime hawk moth
Location: Bellefontaine, Ohio
July 26, 2016 2:30 pm
Is this a lime hawk moth ?
Letter 8 – Pandorus Sphinx
Subject: What kind of moth
August 16, 2016 8:19 pm
This moth flew into our basement tonight. Beautiful! It’s hard to tell the scale from the picture but it was about Luna Moth size. We live in Western North Carolina, in the Appalachian Mountains.
This beauty is a Pandorus Sphinx, Eumorpha pandorus, a species that if found throughout the entire eastern portion of North America. According to BugGuide: “Larvae feed on leaves of peppervine (Ampelopsis spp.), grape (Vitis spp.), and Virginia Creeper (Parthenocissus quinquefolia).”
Letter 9 – Pandorus Sphinx
Subject: strange bug that looks like dead leaves
Location: woodbridge, ontario (canada)
October 12, 2016 8:06 am
In Ontario, Canada
October 12, 2016
Saw this bug resting on wall
What is it??
This lovely Hawkmoth is a Pandorus Sphinx, and sadly, your image lacks the type of clarity needed to really appreciate the beauty of this species. Interestingly, we have several images on our site that also use bricks as a nice sense of scale, including this individual from Tennessee and this Pandorus Sphinx from Ohio sighted during National Moth Week in 2013.
Hello Daniel. Thank you for your reply
I did not want to frighten it yesterday so did not approach closely. It is still resting in the same spot this morning. I approached closer and took this picture for you
My concern is the colder weather. Will this hawkmoth survive?
Thanks for sending a higher quality image. Hawkmoths are relatively long lived, for moths, but we are speculating six weeks would constitute a long life for a Hawkmoth. Insects are amazingly resilient to fluctuations in weather, but we imagine by the time winter sets in, the life of this individual will have ended.
Letter 10 – Pandorus Sphinx
Subject: Oleander Hawk Moth
Location: Hanover Rd, Chesapeake
July 29, 2017 3:49 pm
I found what I thought was a dead leaf this morning in Chesapeake, Va. As I got closer I notice it was not a bug at all but a Moth, and what a striking Moth he or she was. I thought I share my Discovery with your site.
Letter 11 – Pandorus Sphinx
Subject: Whats that bug?
Location: Big Rapids, MI
August 16, 2017 4:55 pm
Found in Aug 2018 in Big Rapids, MI
This pretty green Sphinx Moth is a Pandorus Sphinx, a species found in much of eastern North America.
Thanks for your speedy response. He/she was the talk of my office yesterday! We had never seen one.
Have a great day!
Letter 12 – Pandorus Sphinx
Subject: Moth ID
Geographic location of the bug: Medina Ohio 44256
Time: 05:18 PM EDT
Your letter to the bugman: Have never seen one of these before.
How you want your letter signed: Matt Richardson
This striking moth is an Pandorus Sphinx, and according to BugGuide: “Larvae feed on leaves of peppervine (Ampelopsis spp.), grape (Vitis spp.), and Virginia Creeper (Parthenocissus quinquefolia).”
Letter 13 – Pandorus Sphinx
Subject: Sphinx Moth?
Geographic location of the bug: Central Mississippi
Time: 10:47 AM EDT
Your letter to the bugman: Please help me and the kids identify this moth! Possibly a Pandorus Sphinx?
How you want your letter signed: Scott
You are absolutely correct. This beautiful moth is a Pandorus Sphinx.
Letter 14 – Pandorus Sphinx
Subject: Lime Hawk Moth
Geographic location of the bug: Just outside Philadelphia
Time: 09:49 PM EDT
Your letter to the bugman: We found this moth on our garage today. We looked it up and we think it might be a Lime Hawk Moth but they are not from Pennsylvania so we’re not sure how it got here. We live just outside Philadelphia.
How you want your letter signed: Leslie
This is a Pandorus Sphinx, a native species for you, not a European Lime Hawk Moth. Many years ago, we posted an image of a Lime Hawk Moth found in Pennsylvania, but that appears to have been an isolated sighting.
Letter 15 – Pandorus Sphinx
Geographic location of the bug: Brigantine, NJ USA
Time: 02:47 AM EDT
Your letter to the bugman: I found this unusual guy on the sign for the Brigantine Inn while on vacation in late June 2019. Weather was warm but breezy, beach weather. I would love to know what he is.
How you want your letter signed: Curious bugger
Letter 16 – Pandorus Sphinx
Geographic location of the bug: Chester,CT
Time: 11:38 PM EDT
Your letter to the bugman: I saw this beautiful moth when I was out walking last week. I am not sure the exact name of this bug, hoping you can help!
How you want your letter signed: Heather S.
This beauty is a Pandorus Sphinx, and according to iNaturalist: “Female adults lay translucent eggs singly on leaves of the host plant, mainly Vitis (grapes), and Parthenocissus (Virginia creeper). Caterpillars are large, green or red with a swollen third thorax segment into which the head and first two thoractic segments can be drawn. The abdomen has a small white spot on the second segment, and big white oval spots the last five spiracles. They also have the characteristic “horn” at the end of the abdomen, until it is replaced by a button in its last instar. Larvae consume copious amounts of foliage, and when they are ready they climb down their host plant and burrow underground, where they pupate. The pupa is dark brown in color, quite slender, and has a long cremaster. There the pupa will remain for either a couple of weeks or a couple of months, depending on the generation. When the pupa is ready, it wiggles to the surface just prior to eclosion. The newly emerged adults then climb on a plant or some other surface, and pump fluid into their wings to extend them. Females emit pheromones at night, and males fly into the wind to pick up and track the pheromone plume. “
Letter 17 – Pandorus Sphinx
Subject: Lime Hawk moth?
Geographic location of the bug: Knightdale NC
Time: 07:55 PM EDT
Your letter to the bugman: This is supposed to be indigenous to the UK.
How you want your letter signed: Thanks
You are correct that the Lime Hawkmoth is native to Europe, but this is not a Lime Hawkmoth. It is a native Pandorus Sphinx. Nonetheless, there is an introduced population of Lime Hawkmoths in North America, with many Canadian sightings.