| INCHWORMS | Larvae of the geometer moth |
| INCHWORM | The larva of the geometer moth (8) |
| MOTH | Winged insect akin to a butterfly but mostly nocturnal, in Mallorca the larvae of the Processionary are toxic, and the Tuta variety play havoc with tomato crops (4) |
| PUG | One of a grumble of carlins whose name also means an animal's footprint, a boxer, clay, a fox, an imp, a geometer moth, a monkey or a snub nose (3) |
| EUCLID | Different clue I had for the geometer (6) |
| RIDER | From the geometer I derived a corollary (5) |
| RIVULET | A little stream; or, a brown geometer moth with a pale wave on its wings, suggestive of said brook (7) |
| PERGA | 'The Great Geometer' of ancient times, Apollonius of ___ |
| COCOON | Name the silky envelope that is spun by the larvae of many insects (6) |
| MAGGOTS | The soft, limbless larvae of insects such as the housefly and blowfly (7) |
| CATERPILLARS | The worm-like larvae of butterflies and moths (12) |
| TADPOLES | The aquatic larvae of frogs, toads, etc (8) |
| MOTHS | The larvae of what can damage stored clothes? (5) |
| BEETLE | Watch out for the grey larvae of rosemary ___ (6) |
| GLOWWORM | European beetle, Lampyris noctiluca, the females and larvae of which bear luminescent organs |
| COCKCHAFERS | Large beetles (also known as maybugs), the larvae of which live underground and eat plant roots (including potatoes) (11) |
| COCOONS | Silky cases spun by the larvae of many insects as protection (7) |
| OAKAPPLE | Tree gall caused by the larvae of a wasp (3,5) |
| OAKAPPLES | Growths on trees, caused by the larvae of gall wasps (3,6) |
| GRUBS | Larvae of insects; caterpillars or maggots (5) |
