Field guide No. 524
The butterfly with a vein-only wing
Colouring in, half done.
In a glasshouse, an orange butterfly rests on a leaf with one side of its wings in full colour and the other only clear veins, like an outline. Somebody ran out of orange.
Field noteButterflies come finished. This one has a full orange pair of wings and a pair still in outline.
Also possible, also breaking category
Emerald beetles in a typewriterType strikes ink, not insects. Beetles in neat lines are a font with legs.
Hermit crab’s pinecone homePinecones aren’t hollow, so this crab is renting a house with no inside.
Avo conservatoryGlasshouses fit in odd places. The pit was the obvious vacancy.
Envelopes blooming in lavender twilightStationery that grows in rows is horticulture miscast. Unprecedented, but not a contradiction.