OPAL Bugs Count Invertebrate Picture Quiz Final

Bugs Count by the Natural History Museum

Invertebrate Picture Quiz

© OPAL 2011. All rights reserved. Photos by Harry Taylor unless stated otherwise

• Each slide shows examples of a different group of terrestrial invertebrate

• Look carefully at the images on each slide and try to identify the group of invertebrates they belong to • Click on each slide to reveal the answer, along with key identification features (images are not to scale)

1. Snails (no legs) Hard, coiled shell

Soft, slimy body

2. Slugs (no legs)

Soft, slimy body, without a coiled shell

Photo credit: Roy Anderson

3. Earthworms (no legs)

Thickened band (saddle) in adults

Long, thin body divided into many segments (‘rings’)

4. Beetles (6 legs)

Biting mouthparts

Hard wing-cases, meeting in a T-shape

5. True bugs (6 legs) Wing-cases, usually meet in an X- or Y-shape

Very variable group - includes the tiny aphids

Piercing/sucking mouthparts (held underneath head)

6. True flies (6 legs) One pair of wings

Antennae often very short

7. Bees, wasps & ants (6 legs) Two pairs of wings, but this is hard to see! Long antennae Bees (hairy)

Wasp (not hairy) Ant

8. Butterflies & moths (6 legs)

Two pairs of wings (almost always coloured) Long antennae

9. Grasshoppers & crickets (6 legs)

Cricket - very long antennae

Long back legs for jumping

Grasshopper short antennae

10. Earwigs (6 legs)

Pincer-shaped claspers (‘cerci’)

Long, narrow brown body

11. Spiders (8 legs) Body clearly divided into two parts

12. Harvestmen (8 legs)

One obvious body part

Long, thin legs

13. Woodlice (>8 legs) 7 pairs of legs

Oval shaped body, divided into many segments

14. Centipedes (>8 legs) Long, thin body, many segments

One pair of legs per body segment

Usually orange or yellow

15. Millipedes (>8 legs) Body divided into many segments Two pairs of legs per body segment

16. Insect larvae (young)

Bugs Count Invertebrate Picture Quiz - answers Slide number

Invertebrate group

1

Snails (Molluscs: Gastropoda)

2

Slugs (Molluscs: Gastropoda)

3

Earthworms (Annelida)

4

Beetles (Insects: Coleoptera)

5

True bugs (Insects: Hemiptera)

6

True flies (Insects: Diptera)

7

Bees, wasps and ants (Insects: Hymenoptera)

8

Butterflies and moths (Insects: Lepidoptera)

9

Crickets & grasshoppers (Insects: Orthoptera)

10

Earwigs (Insects: Dermaptera)

11

Spiders (Arachnids: Araneae)

12

Harvestmen (Arachnids: Opiliones)

13

Woodlice (Crustaceans: Isopoda)

14

Centipedes (Chilopoda)

15

Millipedes (Diplopoda)

16

Insect larvae (various insect groups)