| Insert cartridges again | 23 |
| Insert carets, perhaps | 22 |
| Insert blank pages in a book | 28 |
| Insert blank pages between | 26 |
| Insert "@#$%!," say | 29 |
| Inseparable friends of legend | 29 |
| Insensitive, in modern times | 28 |
| Insensitive, for short | 22 |
| Insensitive and coarse | 22 |
| Insecure vet's admission? | 29 |
| Insecure potential unit? | 24 |
| Insects' spiracles | 22 |
| Insects' sensory organs | 27 |
| Insects' sense organs | 25 |
| Insects' lower lips | 23 |
| Insects' honey tubes | 24 |
| Insects' antenna sockets | 28 |
| Insects with big stingers | 25 |
| Insects that walk on water | 26 |
| Insects related to katydids | 27 |
| Insects often strained at | 25 |
| Insects in their cocoons | 24 |
| Insects in the woodwork | 23 |
| Insects in the cocoon stage | 27 |
| Insects in final stages | 23 |
| Insects in a biblical plague | 28 |
| Insects found in trunks | 23 |
| Insects for baseballers | 23 |
| Insects course, for short | 25 |
| Insectivorous songbird | 22 |
| Insectivorous creature | 22 |
| Insectivore's meal | 22 |
| Insectivore of Madagascar | 25 |
| Insecticides, for short | 23 |
| Insecticide, for short | 22 |
| Insecticide ingredient | 22 |
| Insecticide in disrepute | 24 |
| Insecticide banned since 1973 | 29 |
| Insecticide banned since 1972 | 29 |
| Insecticide banned in 1972 | 26 |
| Insecticide banned by the EPA | 29 |
| Insecticide alternative | 23 |
| Insectarium's place | 23 |
| Insect-world animated film | 26 |
| Insect-repelling compound | 25 |
| Insect-repelling chemical | 25 |
| Insect-repellent compound | 25 |
| Insect-eating songbird | 22 |
| Insect-eater of Madagascar. | 27 |
| Insect's working hours? | 27 |
| Insect's vital vessel | 25 |
| Insect's trachea, e.g. | 26 |
| Insect's sensory organs | 27 |
| Insect's sensory organ | 26 |
| Insect's sensory device | 27 |
| Insect's sense organs | 25 |
| Insect's secretion | 22 |
| Insect's receptacle | 23 |
| Insect's quiescent stage | 28 |
| Insect's post-pupal stage | 29 |
| Insect's organ of sense | 27 |
| Insect's opening for air | 28 |
| Insect's mouth part | 23 |
| Insect's lower lip | 22 |
| Insect's legal document? | 28 |
| Insect's final stage | 24 |
| Insect's bedtime ritual? | 28 |
| Insect's appendage | 22 |
| Insect's adult stage | 24 |
| Insect with striped wings | 25 |
| Insect with lime-green wings | 28 |
| Insect with grasping forelegs | 29 |
| Insect with abdominal pincers | 29 |
| Insect with a slender waist | 27 |
| Insect with a pollen basket | 27 |
| Insect with a long proboscis | 28 |
| Insect that eats its mate | 25 |
| Insect that can mimic a leaf | 28 |
| Insect stage after larva | 24 |
| Insect reproductive stage | 25 |
| Insect repellent ingredient | 27 |
| Insect repellent compound | 25 |
| Insect repellent brand | 22 |
| Insect pupa sold as fish food | 29 |
| Insect often told to fly home | 29 |
| Insect of musical note | 22 |
| Insect mimicking a donkey? | 26 |
| Insect mailing a package? | 25 |
| Insect living in deadwood | 25 |
| Insect involved in looting | 26 |
| Insect in one's pants? | 26 |
| Insect in its final stage | 25 |
| Insect in its adult stage | 25 |
| Insect in a summer swarm | 24 |
| Insect in a marching column | 27 |
| Insect going after combat | 25 |
| Insect from East Sussex? | 24 |
| Insect found in hot areas | 25 |
| Insect found in deadwood | 24 |
| Insect for English sport fan | 28 |