Square-spot Rustic vs Japanese Yellow Swallowtail

Side-by-side species comparison

Attribute Square-spot Rustic Japanese Yellow Swallowtail
Scientific Name Xestia xanthographa Papilio machaon hippocrates
Order Lepidoptera Lepidoptera
Family Noctuidae Papilionidae
Size 32-38 mm wingspan 70-90 mm wingspan
Habitat Gardens Mountains
Diet Root Feeders Nectar Feeders
Regions Europe East Asia, Japan
Conservation Least Concern Least Concern

Square-spot Rustic

An extremely common autumn-flying moth with a diagnostic square stigma on the forewing. One of the most abundant moths in British gardens. Larvae feed on grasses.

💡

Did You Know?

Often the single most abundant moth species in garden moth traps during September.

Japanese Yellow Swallowtail

The Japanese subspecies of the Old World swallowtail, known as 'ki-ageha.' A large and elegant butterfly with bright yellow wings marked with black patterns and blue hindwing spots.

💡

Did You Know?

This butterfly engages in 'hilltopping' behavior, where males fly to hilltops and ridges to establish territories and wait for females.