2025 October Derby results through week 2

[Andrew Griffith]

Through the first couple weeks, we are doing pretty well.  Notably missing are the adult forms of most swallowtails (Giant, Tiger, Black), Cloudless Sulphur, and any tortoiseshells.  The weather for the past few days has probably put a bit of a cap on the season, but we have a few nice days coming up with a decent weekend, so we'll see what people can find!  

October 2025 Sightings List

[Through October 13, 2025]

Massachusetts Butterfly Club
Composite Species Listing [28 adults + 4 caterpillars + 3 chrysalides ]

Adults:

American Copper
American Lady
Azure (sp)
Bronze Copper
Cabbage White
Clouded Sulphur
Common Buckeye
Common Ringlet
Eastern Comma
Eastern tailed blue
Fiery Skipper
Gray Hairstreak
Great Spangled Fritillary
Least Skipper
Monarch
Mourning Cloak
Ocola Skipper
Orange Sulphur
Painted Lady
Pearl Crescent
Peck's Skipper
Pipevine Swallowtail
Red Admiral
Sachem
Spicebush Swallowtail
Variegated Fritillary
Viceroy
Wild Indigo Duskywing

Caterpillars:

Black Swallowtail

Spicebush Swallowtail

Giant Swallowtail

Baltimore Checkerspot

Chrysalides :

Monarch

Black Swallowtail

Spicebush Swallowtail