Walnut Husk Fly vs Spiny Leaf Katydid

Side-by-side species comparison

Attribute Walnut Husk Fly Spiny Leaf Katydid
Scientific Name Rhagoletis completa Panacanthus cuspidatus
Order Diptera Orthoptera
Family Tephritidae Tettigoniidae
Size 5-7 mm 50-70 mm
Habitat Orchards Mountains
Diet Fruit Feeders Fruit Feeders
Regions North America, Southern Europe Ecuador, Colombia
Conservation Least Concern Least Concern

Walnut Husk Fly

A fruit fly whose larvae feed inside walnut husks, staining and damaging the nuts. It has become an invasive pest in European walnut-growing regions.

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Did You Know?

Larval feeding stains walnut shells black, making them unmarketable even though the nut inside may be fine.

Spiny Leaf Katydid

A brightly colored Ecuadorian katydid covered in sharp spines for defense. Its green body with orange and black spines makes it conspicuous as a warning.

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Did You Know?

It can squirt a foul-smelling defensive spray from glands on its thorax when grabbed.