Howard County Bird Club
Cloudless Sulphur
Place name abbreviations: MPEA – Middle Patuxent Environment Area; PRSP – Patuxent River State Park; PVSP – Patapsco River Valley State Park.
Click on the common name to obtain additional information from the Butterflies and Moths of North America web page and the following common name for additional information from USGS web page. BugGuide is another web resource.
Legend:
| Common name [Link is to BAMONA] (wingspan range in inches) Common name [link is to USGS] |
Occurrence level & flight period. | |
| Habitat. | Typically visits (for nectaring). | Larval host plants. |
| Cloudless Sulphur (2.25–3.1″) Cloudless Sulphur |
Rare: L Aug – M Sep | Open fields | Senna, partridge pea | Sennas | |
September 14, 2013
Mount Pleasant
Linda Hunt
October 12, 2016
Mount Pleasant
Bonnie Ott
Male & Female
September 17, 2016
Elkridge
Jim Wilkinson
September 4, 2019
Font Hill Wetland Park
Kelsey Wellons
August 7, 2020
Oxford Square
Jim Wilkinson
Caterpillar
August 9, 2012
Robinson Nature Center
Cheryl Farfaras
Caterpillar
August 17, 2020
Mount Pleasant
Annette Allor
Caterpillar
August 17, 2020
Mount Pleasant
Annette Allor
Caterpillar
August 23, 2021
Ellicott City
Kevin Heffernan
Chrysalis
September 16, 2016
Elkridge
Jim Wilkinson
The phenograms show the maximum number of individual butterflies of this species seen in the first eight years of the Howard County Butterfly Survey. From these graphs, one can see the number of broods of each species, when they are active, and the relative abundance of the species in each brood. The observed early and late dates are shown below The graphs can be used to anticipate the first sighting of a given species in the year and can help with identification.
Early: 5/29/2019 and 5/29/2020 Late: 11/26/2019