Size It Up Insects

BODY LENGTH OR WINGSPAN · FIVE ROUNDS A DAY · 80 INSECTS

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Versions & measurements

Slide left or right anywhere on the board to resize the white silhouette. Arrow keys resize it a step at a time, Enter locks in your guess.

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Choose a lookSAME SIZES · SAME SCORING

How to play Size It Up

  1. Compare. The black silhouette is the reference. It is at true scale and never changes.
  2. Resize. Slide anywhere on the board — or drag the grip, tap the ruler, pinch, or use the arrow keys — until the white silhouette looks right next to the reference. Zoom out if you need room.
  3. Lock in. The true size is drawn in red over your guess. Within 6% scores 100; twice or half the size scores 45; five times off scores 0.

SIZES IN

01 / Small creatures, wide differences

Meet Size It Up Insects

A fly at the fruit bowl and a butterfly in the garden rarely sit side by side. Size It Up Insects brings them onto one board, where familiar outlines can hide surprisingly different sizes.

Size It Up Insects contains 80 adult insects, including bees, ants, beetles, butterflies, moths and dragonflies. Each round compares a named body length or wingspan. The smallest body is only 1 mm; the widest wings reach 260 mm.

Bee, ant, stag beetle, cricket, dragonfly and butterfly silhouettes arranged as a specimen collection.
A closer look at Size It Up Insects. Individual outlines enlarged separately; not to scale.

02 / Read, resize, reveal

How to play Size It Up Insects

Size It Up Insects has five Daily rounds, worth up to 100 points each. Read the black reference, then resize the cream insect until its named dimension looks right.

  1. Check the axis

    Body length and wingspan are different spans. Read both labels before making a comparison.

  2. Think in multiples

    Estimate twice, half or a quarter of the reference. Drag a handle or use the size controls to refine your guess.

  3. Commit and learn

    Submit to reveal the measurements. Size It Up Insects scores the selected span, with an explanation after each guess.

03 / A body is not a wingspan

What Size It Up Insects measures

Body length runs from the head to the abdomen tip. Wingspan runs between the outermost tips of spread wings. Size It Up Insects labels the physical dimension even when a body points vertically on screen.

An emperor dragonfly uses body length here; butterflies use wingspan. Size It Up Insects can compare those two linear distances, but a broad wing shape is not evidence of a longer body.

The red lines below show selected endpoints. In Size It Up Insects, legs, antennae and projecting wings are excluded from body length. Follow the marked span, rather than the whole bounding box.

A honeybee with a red horizontal body-length line beside a monarch butterfly with a wingtip-to-wingtip line.
Two different spans in Size It Up Insects: bee body length and butterfly wingspan. Outlines are not to scale.

04 / Look past the antennae

Common traps in Size It Up Insects

A cricket’s antennae can make its outline look enormous. Size It Up Insects measures its body, excluding the antennae, legs and rear appendages. The red segment shows what counts.

Read the exceptions: the male stag beetle’s length includes its jaws; the earwig’s body length excludes its pincers. Size It Up Insects names these conventions beside the insect and in the measurement note.

Adults also vary in size. A large hornet is not a typical worker, and a worker ant is not a queen. Size It Up Insects uses the selected adult or caste stated in each entry.

A house cricket with a short red line marking head-to-abdomen length and a longer dashed line spanning the antennae and legs.
What counts in Size It Up Insects: the cricket’s body, not its antennae. Enlarged measurement diagram.

05 / Put a number on the difference

Insect size comparisons

These Size It Up Insects examples use the published library values. Each pair of bars shares one linear scale; the examples are independent of the Daily calendar.

For an insect size comparison, divide one span by the other. Size It Up Insects compares lengths, never weight, wing area or the amount of black ink in a silhouette.

Four worker ants match one honeybee’s body length.

Honeybee 12 mm · body length

Black Garden Ant 3 mm · body length

the measured span

The dragonfly’s body is nearly four cricket lengths.

Emperor Dragonfly 78 mm · body length

House Cricket 20 mm · body length

3.9× the measured span

The swallowtail spans more than two small whites.

Eastern Tiger Swallowtail 110 mm · wingspan

Small White Butterfly 48 mm · wingspan

2.292× the measured span

06 / The adult collection

Every species in Size It Up Insects

All 80 Size It Up Insects entries appear below, largest measured span first. Each links to its measurement source. The thumbnail sizes are for identification, not a shared scale.

These are selected values, not universal species averages. Size It Up Insects chooses a representative adult within a published range, or a clearly labelled large adult. The reveal explains that choice.

  1. Queen Alexandra's Birdwing (adult female · open wings)

    260 mm · wingspan

    Size source
  2. Giant Swallowtail (adult male · open wings)

    175 mm · wingspan

    Size source
  3. Puriri Moth (adult female · open wings)

    150 mm · wingspan

    Size source
  4. Blue Morpho (adult · open wings)

    140 mm · wingspan

    Size source
  5. Devil's Flower Mantis (adult female)

    130 mm · body length

    Size source
  6. Death's-head Hawkmoth (adult · open wings)

    118 mm · wingspan

    Size source
  7. Eastern Tiger Swallowtail (adult · open wings)

    110 mm · wingspan

    Size source
  8. Privet Hawk-moth (adult)

    105 mm · wingspan

    Size source
  9. Annam Stick Insect (adult)

    103 mm · body length

    Size source
  10. Convolvulus Hawk-moth (adult)

    100 mm · wingspan

    Size source
  11. Monarch Butterfly (adult · open wings)

    90 mm · wingspan

    Size source
  12. Luna Moth (adult · open wings)

    90 mm · wingspan

    Size source
  13. Mourning Cloak (adult · open wings)

    80 mm · wingspan

    Size source
  14. Emperor Dragonfly (adult · body length)

    78 mm · body length

    Size source
  15. Brown Hawker (adult)

    73 mm · body length

    Size source
  16. Pine Hawk-moth (adult)

    72.5 mm · wingspan

    Size source
  17. Red Admiral (adult · open wings)

    71 mm · wingspan

    Size source
  18. Southern Hawker (adult)

    70 mm · body length

    Size source
  19. Peacock Butterfly (adult · open wings)

    69 mm · wingspan

    Size source
  20. Painted Lady (adult)

    66 mm · wingspan

    Size source
  21. Stag Beetle (male · jaws included)

    65 mm · length including jaws

    Size source
  22. Migrant Hawker (adult)

    63 mm · body length

    Size source
  23. Large White Butterfly (adult)

    60.5 mm · wingspan

    Size source
  24. European Praying Mantis (adult)

    60 mm · body length

    Size source
  25. Japanese Rhinoceros Beetle (male · horn included)

    55 mm · length including horn

    Size source
  26. Small Tortoiseshell (adult)

    53.5 mm · wingspan

    Size source
  27. Elephant Hawk-moth (adult)

    52.5 mm · wingspan

    Size source
  28. Meadow Brown (adult)

    50 mm · wingspan

    Size source
  29. Small White Butterfly (adult · open wings)

    48 mm · wingspan

    Size source
  30. Green-veined White (adult)

    46 mm · wingspan

    Size source
  31. Orange-tip Butterfly (adult)

    46 mm · wingspan

    Size source
  32. Banded Demoiselle (adult)

    45 mm · body length

    Size source
  33. Great Diving Beetle (adult)

    44 mm · body length

    Size source
  34. Gatekeeper Butterfly (adult)

    42.5 mm · wingspan

    Size source
  35. Common Darter (adult)

    40.5 mm · body length

    Size source
  36. American Cockroach (adult)

    40 mm · body length

    Size source
  37. European Hornet (large adult)

    35 mm · body length

    Size source
  38. Common Blue Butterfly (adult)

    32.5 mm · wingspan

    Size source
  39. Blue-tailed Damselfly (adult · body length)

    31 mm · body length

    Size source
  40. Holly Blue (adult)

    30 mm · wingspan

    Size source
  41. Bullet Ant (adult worker)

    28 mm · body length

    Size source
  42. Minotaur Beetle (male · horns included)

    24 mm · length including horns

    Size source
  43. Small Blue Butterfly (adult)

    22.5 mm · wingspan

    Size source
  44. Red-tailed Bumblebee (adult)

    22 mm · body length

    Size source
  45. Buff-tailed Bumblebee (large adult)

    21 mm · body length

    Size source
  46. House Cricket (adult)

    20 mm · body length

    Size source
  47. Common Wasp (large adult)

    20 mm · body length

    Size source
  48. White-tailed Bumblebee (large adult)

    20 mm · body length

    Size source
  49. Noble Chafer (adult)

    20 mm · body length

    Size source
  50. Rose Chafer (adult)

    18.5 mm · body length

    Size source
  51. Brown Marmorated Stink Bug (adult)

    17 mm · body length

    Size source
  52. Early Bumblebee (adult)

    17 mm · body length

    Size source
  53. Wasp Beetle (adult)

    16 mm · body length

    Size source
  54. Large Milkweed Bug (adult)

    15 mm · body length

    Size source
  55. Heath Bumblebee (adult)

    14 mm · body length

    Size source
  56. German Cockroach (adult)

    13 mm · body length

    Size source
  57. Common Earwig (adult · pincers excluded)

    13 mm · body length

    Size source
  58. Tree Bumblebee (adult)

    13 mm · body length

    Size source
  59. Honeybee (adult)

    12 mm · body length

    Size source
  60. Firebrat (adult)

    11.5 mm · body length

    Size source
  61. Common Eastern Firefly (adult)

    10.7 mm · body length

    Size source
  62. Common Red Soldier Beetle (adult)

    10 mm · body length

    Size source
  63. Marmalade Hoverfly (adult)

    9.8 mm · body length

    Size source
  64. Click Beetle (adult)

    8.9 mm · body length

    Size source
  65. Oriental Beetle (adult)

    8.1 mm · body length

    Size source
  66. Harlequin Ladybird (adult)

    8 mm · body length

    Size source
  67. Flower Longhorn Beetle (adult)

    7.3 mm · body length

    Size source
  68. Seven-spot Ladybird (adult)

    6.6 mm · body length

    Size source
  69. Southern Wood Ant (worker)

    6 mm · body length

    Size source
  70. Common House Mosquito (adult)

    5 mm · body length

    Size source
  71. Two-spot Ladybird (adult)

    5 mm · body length

    Size source
  72. Bed Bug (adult)

    4.6 mm · body length

    Size source
  73. Red Flour Beetle (adult)

    3.45 mm · body length

    Size source
  74. Black Garden Ant (worker)

    3 mm · body length

    Size source
  75. Common Fruit Fly (adult)

    2.5 mm · body length

    Size source
  76. Head Louse (adult)

    2.2 mm · body length

    Size source
  77. Human Flea (adult)

    1.95 mm · body length

    Size source
  78. Western Flower Thrips (adult female)

    1.4 mm · body length

    Size source
  79. Redbanded Thrips (adult female)

    1.2 mm · body length

    Size source
  80. Booklouse (adult)

    1 mm · body length

    Size source

07 / Build a millimetre ruler

Tips for Size It Up Insects

Start with a tiny anchor: the worker garden ant is 3 mm long. The honeybee is 12 mm. Those body lengths provide a useful first estimate in Size It Up Insects.

Keep a separate mental ruler for open wings. The small white and tiger swallowtail below share a calibrated scale. Size It Up Insects rewards the distance between the outer tips, even when one butterfly has long trailing tails.

Try Unlimited after the Daily round. Size It Up Insects uses the same measurements for practice, so you can learn one anchor and test it against fresh pairs.

Small white butterfly and eastern tiger swallowtail on the same wingtip scale; the swallowtail is about 2.29 times wider.
A shared wingspan scale in Size It Up Insects. Positions and ratios are calculated from the library.

08 / Trace the measurement

Where Size It Up Insects gets its sizes

Size It Up Insects draws on wildlife organisations, museums and university reference pages. Millimetres describe a linear span. If a source gives a range, the selected value stays within that range; a maximum is labelled as a large adult.

Classic artwork comes from credited PhyloPic contributors under CC0 or public-domain terms. Size It Up Insects preserves each source and records its measurement endpoints. Related species may share a suitable schematic outline: colour patterns and fine anatomical differences are not identification tests. The diagrams do not show living specimens at life size.

09 / Questions from the field

Questions about Size It Up Insects

Does Size It Up Insects include spiders?
No. This collection contains insects: bees, ants, beetles, butterflies and other six-legged adults. Spiders, scorpions and centipedes belong to different groups and are outside this pool.
Are Size It Up Insects measurements body lengths or wingspans?
Both appear, with the dimension named in every round. Body length usually excludes appendages. Butterfly and moth wingspans run between the outer tips of spread wings. The stag beetle’s jaws are explicitly included.
Why can my insect be a different size?
Age, sex and caste affect size. Size It Up Insects uses the specified adult and a sourced value, sometimes selected within a range. It does not claim that every individual measures exactly that much.
Does Size It Up Insects include caterpillars?
This collection uses adults only. A caterpillar and its adult butterfly have different shapes and measurement conventions; they are not interchangeable versions of one round.
How often does Size It Up Insects change?
Five Daily rounds open at local midnight. Unlimited supplies fresh pairs. Pairs differ by at least 1.15 times; the first four Daily rounds stay within 10 times, and the fifth may reach 25 times.
Are the collection examples today’s answers?
The Size It Up Insects collection and comparisons are static learning material. Daily answers remain in the separate Answers archive; the game reveals each measurement after a guess.

10 / Keep exploring

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