Snailcase Bagworm vs Fifteen-Spotted Lady Beetle

Side-by-side species comparison

Attribute Snailcase Bagworm Fifteen-Spotted Lady Beetle
Scientific Name Apterona helicoidella Anatis labiculata
Order Lepidoptera Coleoptera
Family Psychidae Coccinellidae
Size Case about 5-6 mm; male wingspan 10 mm 7-10 mm
Habitat Grasslands Forests
Diet Omnivores Omnivores
Regions Europe, Asia Minor, introduced to North America North America
Conservation Least Concern Least Concern

Snailcase Bagworm

A tiny bagworm moth whose larva builds a coiled, snail-shell-shaped case from silk and sand grains. It reproduces entirely by parthenogenesis in most of its range.

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Did You Know?

Males are almost never found; most populations consist entirely of females reproducing without mating.

Fifteen-Spotted Lady Beetle

One of the largest North American ladybirds with white or grey elytra bearing fifteen dark spots. It is a canopy-dwelling species found mainly in coniferous forests.

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Did You Know?

When disturbed, it releases a pungent alkaloid-laden hemolymph from its leg joints as a defense.