Spider Beetle vs Blue Striped Nettle Grub

Side-by-side species comparison

Attribute Spider Beetle Blue Striped Nettle Grub
Scientific Name Mezium americanum Parasa lepida
Order Coleoptera Lepidoptera
Family Ptinidae Limacodidae
Size 2-4 mm 30-40 mm wingspan
Habitat Underground Underground
Diet Detritivores Herbivores
Regions North America, Europe Southeast Asia (Malaysia, Indonesia, Thailand, Vietnam, Philippines, Myanmar)
Conservation Least Concern Least Concern

Spider Beetle

A globular beetle that closely resembles a small spider in shape and movement.

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Did You Know?

Its round shiny abdomen and long legs give it a convincing spider-like appearance.

Blue Striped Nettle Grub

A small moth with vivid green forewings edged in dark chocolate brown. The caterpillar is bright green with blue longitudinal stripes and bears venomous urticating spines that cause intense pain.

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Did You Know?

The caterpillar's sting is so painful it is compared to a wasp sting, and the venomous spines can cause welts lasting several days.