Black Cutworm vs Neotropical Blue Hairstreak

Side-by-side species comparison

Attribute Black Cutworm Neotropical Blue Hairstreak
Scientific Name Agrotis ipsilon Pseudolycaena marsyas
Order Lepidoptera Lepidoptera
Family Noctuidae Lycaenidae
Size 40-55 mm wingspan 35-45 mm wingspan
Habitat Indoors Rivers & Streams
Diet Seed Feeders Nectar Feeders
Regions Worldwide Brazil, Peru, Colombia, Ecuador, Bolivia
Conservation Not Evaluated Least Concern

Black Cutworm

A dull brown moth whose soil-dwelling caterpillars sever young seedlings at ground level during the night. It is a cosmopolitan pest that migrates long distances.

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Did You Know?

Cutworm caterpillars curl into a C-shape when disturbed, a diagnostic behavior for identifying them in soil.

Neotropical Blue Hairstreak

A brilliant iridescent blue hairstreak butterfly with delicate tail streamers on the hind wings. Its underside is pale grey with fine dark lines.

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Did You Know?

Its false head pattern on the hind wing tips, complete with fake antennae, tricks predators into attacking the wrong end.