Handeware

Field Guide · Chapter 21 of 29

Beetles and bugs

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Common glow-worm
Insecta › Coleoptera › Lampyridae

Common glow-worm

Female 12 to 20 mm

Despite the name, the glow worm is a beetle and not worm-like at all.

Common eastern firefly
Insecta › Coleoptera › Lampyridae

Common eastern firefly

10 to 14 mm long

Males fly in a J shape and flash on the way up, which is how the big dipper firefly got its name.

Sacred scarab
Insecta › Coleoptera › Scarabaeidae

Sacred scarab

Up to 4.0 cm long

A dung beetle that the ancient Egyptians venerated.

Colorado potato beetle
Insecta › Coleoptera › Chrysomelidae

Colorado potato beetle

Over 500 eggs

A whole life cycle can take as little as 21 days.

Emperor dragonfly
Insecta › Odonata › Aeshnidae

Emperor dragonfly

Larvae: around 46 mm

Its larvae are very aggressive and likely to influence the native species where they arrive.

Beautiful demoiselle
Insecta › Odonata › Calopterygidae

Beautiful demoiselle

Up to 980 m

Its larvae are hurt once temperatures rise above 22 °C.

Giant prickly stick insect
Insecta › Phasmida › Phasmatidae

Giant prickly stick insect

About 20 cm long

With no males around, the females still lay eggs, and those eggs hatch into females only.

House cricket
Insecta › Orthoptera › Gryllidae

House cricket

16 to 21 mm long

The pet and lab trades turned this insect into a staple feeder in half a century.

Eastern subterranean termite
Insecta › Blattodea › Rhinotermitidae

Eastern subterranean termite

Up to 5 million

One colony can grow to as many as 5 million workers.

Bed bug
Insecta › Hemiptera › Cimicidae

Bed bug

Six months unfed

An adult bed bug can last as long as six months between feedings.

Human louse
Insecta › Psocodea › Pediculidae

Human louse

Head louse: 1 to 2 mm

Lice are obligate ectoparasites, so they live off the blood of humans.

Giant leaf insect
Insecta › Phasmida › Phylliidae

Giant leaf insect

Almost 12.0 cm

Its eggs are the largest and heaviest of any leaf insect.

1 of 12

On this page

  1. Common glow-worm
  2. Common eastern firefly
  3. Sacred scarab
  4. Colorado potato beetle
  5. Emperor dragonfly
  6. Beautiful demoiselle
  7. Giant prickly stick insect
  8. House cricket
  9. Eastern subterranean termite
  10. Bed bug
  11. Human louse
  12. Giant leaf insect

What is real here

Every photograph and every outline comes from a real, openly licensed image, credited at the bottom of its card. Only plain charts are drawn.

The words on these cards are written by AI from the sources named on each card. Software matched every number and claim to a sentence in those sources. Mistakes are still possible, so follow a card's links before relying on it.

Globe dots are real recorded sightings from GBIF. Where a card says native range only, they are clipped to that range. Otherwise they can include zoos, gardens and places the species was introduced.