Butterflies

Common Milkweed (Asclepias syriaca) with a Tiger Swallowtail.

Common Milkweed (Asclepias syriaca), a Comprehensive Guide in 8 Sections

by RobSilphium
January 1, 2022
7 min read

Common Milkweed (Asclepias syriaca) is one of the most common host plants for the Monarch Butterfly in the United States. Generally when you think of… Common Milkweed (Asclepias syriaca), a Comprehensive Guide in 8 Sections

Black swallowtail (Papilio polyxenes) on fence.

Black Swallowtail (Papilio polyxenes), a Comprehensive Guide in 7 Sections

by RobSilphium
January 1, 2022
3 min read

The black swallowtail is found in the tri-county area around Titusville, Pennsylvania and throughout Pennsylvania. In North America it is found east of the Rocky… Black Swallowtail (Papilio polyxenes), a Comprehensive Guide in 7 Sections