| | Date Submitted | City | State/province | Type | Milkweed | Comments |
|
View
| 9/11/2024
| Annandale
| VA
| Monarchs
| native swamp milkweed | I have several milkweed plants along my front yard and I check them everyday and today was the day I finally noticed some caterpillars!! I found 3 at what i assume is the 5th instar stage, they are all quite large at this point and have the antennas fully developed. They are happily eating the leaves. |
|
View
| 9/9/2024
| Apple Valley
| MN
| Monarchs
| | 58° Sputh wind. Large monarch in the back yard going SW |
|
View
| 9/8/2024
| Apple Valley
| MN
| Monarchs
| | Sunny 68° light S wind. Monarch going norrh |
|
View
| 9/5/2024
| Orange
| CT
| Monarchs
| Common milkweed | I looked at 30 common milkweed plants. I saw five eggs total and three 4th instars. Milkweed plants are mixed in with other species of plants and the grass around the plants is cut short to keep a trail. Other insect, etc. species seen: aphids, oleander aphids, leaf hopper, spiders, ants, ladybugs, snails, stink bug |
|
View
| 9/5/2024
| Apple Valley
| MN
| Monarchs
| | Corner of 42 and Nicollet ave |
|
View
| 9/9/2024
| Madison
| VA
| Monarchs
| A. syriaca | This caterpillar was on a leaf of a large milkweed plant that was beginning to senesce. |
|
View
| 8/29/2024
| Lexington
| MA
| Monarchs
| Asclepias incarnata | See also observation number #24136 for 8/23/2024. same narrative copied below.
Planted a single Asclepias incarnata plant on 6/9/2024 in a new flower garden in the backyard of a residence. The plant was purchased at a garden center.
Noticed ten caterpillars on the plant on 8/23/2024. Within 48 hours, observed formation of six chrysalides. Two of the remaining caterpillars died and two disappeared (either died or we can’t find the chrysalides). One of the chrysalides disappeared the next day (assumed eaten) and five chrysalides remain intact as of 8/29/2024. Performing daily observation. |
|
View
| 8/28/2024
| Orange
| CT
| Monarchs
| Common milkweed | I looked at 18 common milkweed plants. I saw four eggs total. Milkweed plants are mixed in with other species of plants and the grass around the plants is cut short to keep a trail. Other insect, etc. species seen: snails, ants, oleander aphids, a few spiders |
|
View
| 8/25/2024
| Apple Valley
| MN
| Monarchs
| | 86° no wind. Observed from inside the house. Large monarch |
|
View
| 8/29/2024
| Lexington
| MA
| Monarchs
| Asclepias incarnata | Planted a single Asclepias incarnata plant on 6/9/2024 in a new flower garden in the backyard of a residence. The plant was purchased at a garden center.
Noticed ten caterpillars on the plant on 8/23/2024. Within 48 hours, observed formation of six chrysalides. Two of the remaining caterpillars died and two disappeared (either died or we can’t find the chrysalides). One of the chrysalides disappeared the next day (assumed eaten) and five chrysalides remain intact as of 8/29/2024. Performing daily observation. |
|
View
| 8/23/2024
| Orange
| CT
| Monarchs
| Common milkweed | I looked at 25 common milkweed plants. There were six eggs total. Milkweed plants are mixed in with other species of plants and the grass around the plants is cut short to keep a trail. Other insect, etc. species seen: snails, oleander aphids, spiders, weevil |
|
View
| 8/23/2024
| Madison
| VA
| Monarchs
| A. syriaca | This site is a flower garden of annuals and native perennials, including a number of syriaca plants. |
|
View
| 9/2/2024
| Madison
| VA
| Monarchs
| A. syriaca | We were looking for eggs and young instars when we found these 3 monarch eggs. |
|
View
| 8/20/2024
| Madison
| VA
| Monarchs
| | Saw an adult monarch flying over a meadow along my driveway. Blooming wildflowers and milkweed plants are in the meadow. |
|
View
| 8/18/2024
| Mooresville
| IN
| Monarchs
| Common | I have not seen any adult butterflies. This was a surprise! |
|
View
| 8/15/2024
| Orange
| CT
| Monarchs
| Common milkweed | I observed 22 common milkweed plants. There were seven eggs and one 3rd instar. Milkweed plants are mixed in with other species of plants and the grass around the plants is cut short to keep a trail. Other insect, etc. species seen: ladybug, snail, daddy long legs, katydid, leaf hopper. |
|
View
| 8/15/2024
| Middleton
| WI
| Monarchs
| Common | Checking a small area near our monitored site, we found 1 egg. |
|
View
| 8/12/2024
| Viroqua
| WI
| Monarchs
| Common A. syriaca | Small milkweed plants sprinkled in the hayfield. Hayfield had been cut about a month ago. I also found a dead 3rd instar cat that was being eaten by a bug. |
|
View
| 8/8/2024
| Orange
| CT
| Monarchs
| Common milkweed | I looked at 22 common milkweed plants. There was one 5th instar and one egg. Milkweed plants are mixed in with other species of plants and the grass around the plants is cut short to keep a trail. There were two shorter milkweed plants (5" and 7" tall) on the mowed back portion of the trail. Other insect species seen: aphids, two katydids/grasshoppers, one red milkweed beetle |
|
View
| 8/5/2024
| Lower Gwynedd
| PA
| Monarchs
| common | 5 observers |
|
View
| 8/1/2024
| Orange
| CT
| Monarchs
| Common milkweed | I looked at 22 common milkweed plants. Out of the plants I looked at, there were four eggs and one instar. Two of the eggs were on a shorter milkweed plant (about 6" tall) that was in the middle of the walking trail. I also saw one empty monarch egg shell on a milkweed leaf. There were two monarch butterflies that flew by, but I couldn't tell if they were male or female. One of the monarchs had very muted coloring. Milkweed plants are mixed in with other species of plants and the grass around the plants is cut short to keep a trail. Other insect, etc. species seen: ant, aphids, oleander aphids, snail, spider, leafhopper, katydid/grasshopper |
|
View
| 8/5/2024
| Mil Valley
| CA
| Monarchs
| Narrowleaf milkweed (A. fascicularis) | Grass and sedges nearby; edge of marsh. Nectar plants in area. |
|
View
| 8/5/2024
| Blue Bell
| PA
| Monarchs
| common | 7 observers |
|
View
| 7/29/2024
| Plymouth
| MA
| Monarchs
| Common Milkweed | Checked two common milkweed plants for signs of monarch eggs or larvae; found two small monarch larva on separate leaves - caterpillars with yellow, black, white stripes, two tentacles in front and smaller ones in back! Same instar stage - believed to be 3rd instars (the front tentacles would reach the tip of the head in length if we folded them over but not extend farther, back tentacles shorter than that). |
|
View
| 7/30/2024
| Medford
| WI
| Monarchs
| Common; A. syriaca | All larva detected were on tiny emerging center leaves of yet growing milkweed plants. All larva solitary except for 2 of the 2nd instar larva, which were in close proximity on same plant. |
|
View
| 8/5/2024
| North Wales
| PA
| Monarchs
| common and swamp | 2 observers |
|
View
| 7/26/2024
| Valley Center
| CA
| Monarchs
| Narrow-leafed Milkweed (Asclepias fascicularis) | One monarch traveled from the narrow-leafed milkweed to the evening primrose plant for about an hour. |
|
View
| 7/26/2024
| Valley Center
| CA
| Monarchs
| Small caterpillar on California Milkweed (Asclepias californica) | One inch caterpillar observed. |
|
View
| 7/22/2024
| ARROYO GRANDE
| CA
| Monarchs
| | One of the 5th instars has formed a "J" in my garden bed. Also found a dead 5th instar in the garden bed but it was very shriveled up and not sure if is from this year or last year. There are no pesticide being used so not sure what it died of |
|
View
| 7/17/2024
| Apple Valley
| MN
| Monarchs
| | North wind 67° and sunny. Sighting on patio north side of house |
|
View
| 7/11/2024
| Orange
| CT
| Monarchs
| Common milkweed | I observed 22 common milkweed plants. There were many more milkweed plants on the site. Out of the plants I looked at, there were four eggs and one instar. There was a monarch butterfly that flew by, but I couldn't make out if it was male or female. Milkweed plants are mixed in with other species of plants and the grass around the plants is cut short to keep a trail. Other insect species seen: 3 red milkweed beetles, about 60 caterpillar larvae on one milkweed leaf (milkweed tussock moth?) |
|
View
| 7/9/2024
| ARROYO GRANDE
| CA
| Monarchs
| A. fasicularis, A. speciosa | Saw adult monarch flying |
|
View
| 7/4/2024
| Orange
| CT
| Monarchs
| Common milkweed | I observed 30 common milkweed plants, but there were many more plants on the site. Out of the 30 plants I observed, there was one monarch egg on the bottom side of a leaf. I did not see any monarch caterpillars or butterflies.
Milkweed plants are mixed in with other plant species. Grass around milkweed and other plants is kept short.
Snails seen on some of the milkweed leaves
Other insect species seen: A few red milkweed beetles, 1 spotted lanternfly nymph, 1 Japanese beetle |
|
View
| 7/4/2024
| Midland
| MI
| Monarchs
| Common Milkweed, Swamp Milkweed | Very little Adult activity. |
|
View
| 7/1/2024
| Midland
| MI
| Monarchs
| Common Milkweed | High Density Milkweed. |
|
View
| 6/20/2024
| Arvada
| CO
| Monarchs
| Showy | Adult Monarch on Milkweed in native grass area of a monitored site |
|
View
| 6/20/2024
| Arvada
| CO
| Monarchs
| Showy Milkweed | Public volunteer looked for monarchs in a monitored site but was not following a monitoring protocol. Sent pictures to verify instars. They couldn't remember exactly how many milkweed they looked at as they were working in the garden pulling weeds and happened to see the caterpillars. |
|
View
| 6/11/2024
| Middleton
| WI
| Monarchs
| Asclepias Tuberosa | These 4th instar caterpillars were observed within the site monitored weekly. We monitor Common Milkweed. These were observed on Asclepias Tuberosa. |
|
View
| 6/8/2024
| Midland
| MI
| Monarchs
| Common Milkweed | No adults located |
|
View
| 6/6/2024
| Arvada
| CO
| Monarchs
| Showy | Saw monarch on rose feeding, first sighting os season |
|
View
| 6/2/2024
| Viroqua
| WI
| Monarchs
| Common Milkweed | Small patch of milkweed in tall grass by side of road. The county is getting ready to mow the roadsides so I rescued the eggs. |
|
View
| 6/2/2024
| Janesville
| WI
| Monarchs
| Common, As leap as syriaca | I walked the entire garden and counted milk weeds nearest the grass, sidewalk or gravel path |
|
View
| 6/8/2024
| Midland
| MI
| Monarchs
| Common Milkweed | Only one monarch sighted |
|
View
| 5/29/2024
| Apple Valley
| MN
| Monarchs
| | NE wind. 61° observed on patio north side of house |
|
View
| 6/2/2024
| Viroqua
| WI
| Monarchs
| Common | On side of road. Small patch of milkweed in tall grass that the county is getting ready to mow down. I rescued the cat and eggs. |
|
View
| 6/2/2024
| Viroqua
| WI
| Monarchs
| Common Milkweed | On side of Road. Small patch of milkweed in tall grass. County is getting ready to mow this milkweed down so I rescued the eggs |
|
View
| 5/25/2024
| Apple Valley
| MN
| Monarchs
| | First one of the season while sitting on a north facing patio. It stopped at the raspberry flowers |
|
View
| 6/8/2024
| Midland
| MI
| Monarchs
| Common Milkweed | Limited to early milkweed |
|
View
| 5/20/2024
| Two Harbors
| MN
| Monarchs
| none | Adult monarch flying along Lake Superior Hiking trail. I have a photo |
|
View
| 5/6/2024
| Madison
| VA
| Monarchs
| Monarch was not observed on milkweed. It was flying near a garden where Siberian iris, peonies, dandelions and buttercups were blooming. | Monarch flew by me; could not determine sex. |