ALL ANSWERS · INSECTS · DAILY No. 10 · SEPTEMBER 13, 2026
Size It Up Insects answer: September 13
The five Insects silhouettes for September 13, with the true sizes. If you have not played yet, this page is a spoiler — play these five first, then come back to argue with the numbers.
Day 10 ran from a common fruit fly (2.5 mm) to a luna moth (9 cm). The widest gap was round 1, Red Admiral against German Cockroach, at 5.5×; the closest call was round 5, Luna Moth against Blue-tailed Damselfly, only 2.9× apart — the kind of round that separates a 90 from a 60.
SPOILER · TODAY’S FIVE
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ROUND 1
Red Admiral (adult · open wings) vs German Cockroach (adult)
German Cockroach · reference · 1.3 cm Red Admiral · true wingspan · 7.1 cm 5.5× wider than the German cockroach
Red Admiral: 71 mm wingspan for the selected adult. Selected 71 mm within published wingspan 64–78 mm. Furthest left to furthest right wingtip with wings spread.
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ROUND 2
Small White Butterfly (adult · open wings) vs Large Milkweed Bug (adult)
Large Milkweed Bug · reference · 1.5 cm Small White Butterfly · true wingspan · 4.8 cm 3.2× wider than the large milkweed bug
Small White Butterfly: 48 mm wingspan for the selected adult. Selected 48 mm within published wingspan 38–57 mm. Furthest left to furthest right wingtip with wings spread.
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ROUND 3
Common Earwig (adult · pincers excluded) vs Common Fruit Fly (adult)
Common Fruit Fly · reference · 2.5 mm Common Earwig · true length · 1.3 cm 5.2× longer than the common fruit fly
Common Earwig: 13 mm body length for the selected adult. Selected 13 mm within the published head/body range 10–15 mm. Head to abdomen tip; pincers, antennae and legs excluded.
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ROUND 4
House Cricket (adult) vs Southern Wood Ant (worker)
Southern Wood Ant · reference · 6 mm House Cricket · true length · 2 cm 3.3× longer than the southern wood ant
House Cricket: 20 mm body length for the selected adult. Selected 20 mm within published house cricket length 19–22 mm. Head to abdomen tip; antennae, rear appendages and legs excluded.
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ROUND 5
Luna Moth (adult · open wings) vs Blue-tailed Damselfly (adult · body length)
Blue-tailed Damselfly · reference · 3.1 cm Luna Moth · true wingspan · 9 cm 2.9× wider than the blue-tailed damselfly
Luna Moth: 90 mm wingspan for the selected adult. Selected 90 mm within published adult wingspan 75–105 mm. Furthest left to furthest right wingtip; trailing hindwing tails do not define this span.
Beat these tomorrow
Every round is worth up to 100 points: within 6% of the true size scores 100, half or double scores 45, five times off scores zero. The daily puzzle is the same five for everyone and refreshes at midnight in your time zone; if you want more than five, Size It Up Unlimited draws fresh pairs from the whole library for as long as you like.