Swaine Jack Pine Sawfly vs Saddleback Caterpillar Moth

Side-by-side species comparison

Attribute Swaine Jack Pine Sawfly Saddleback Caterpillar Moth
Scientific Name Neodiprion swainei Acharia stimulea
Order Hymenoptera Lepidoptera
Family Diprionidae Limacodidae
Size 6-9 mm 26-35 mm wingspan
Habitat Forests Orchards
Diet Omnivores Omnivores
Regions Eastern Canada, northeastern United States Eastern North America
Conservation Least Concern Least Concern

Swaine Jack Pine Sawfly

A pine sawfly with strongly pectinate male antennae and sawfly females that are stouter and paler. Larvae are olive green with lighter stripes and feed on jack pine.

💡

Did You Know?

Major outbreaks have historically defoliated millions of hectares of jack pine in Quebec, though populations crash when viral diseases sweep through colonies.

Saddleback Caterpillar Moth

A dark brown moth best known for its extraordinary caterpillar, which is bright green with a brown saddle-shaped marking and venomous spines. The sting causes intense burning pain.

💡

Did You Know?

Its sting is among the most painful of any North American caterpillar and can cause nausea in sensitive individuals.