| No. | Term | Definition |
|---|---|---|
| 1. | abdomen | rear body segment |
| 2. | antenna | sensory appendage on head |
| 3. | aphid | sap-sucking plant pest |
| 4. | apiary | place where bees are kept |
| 5. | arthropod | joint-legged invertebrate |
| 6. | brood | immature insects in a nest |
| 7. | bug | common term for small insect |
| 8. | caddisfly | aquatic larva, winged adult |
| 9. | caterpillar | larval stage of butterflies and moths |
| 10. | chitin | hard material in exoskeleton |
| 11. | chrysalis | butterfly pupa casing |
| 12. | cocoon | silk case around pupa |
| 13. | colony | social insect community |
| 14. | compound eye | eye made of many facets |
| 15. | damselfly | slender, long-winged predator |
| 16. | dragonfly | fast-flying aerial predator |
| 17. | drone | male bee |
| 18. | ecdysis | molting of the exoskeleton |
| 19. | egg | first life stage |
| 20. | elytra | hard forewings of beetles |
| 21. | entomology | study of insects |
| 22. | exoskeleton | outer protective body covering |
| 23. | facet | single unit of compound eye |
| 24. | flea | jumping blood-feeding parasite |
| 25. | fly | two-winged insect |
| 26. | forage | search for food resources |
| 27. | frass | insect droppings |
| 28. | gall | plant swelling caused by insects |
| 29. | glowworm | bioluminescent beetle larva |
| 30. | grasshopper | jumping plant-eating insect |
| 31. | grub | thick-bodied beetle larva |
| 32. | halteres | balancing organs in flies |
| 33. | hive | bee nest or box |
| 34. | holometabolous | complete metamorphosis life cycle |
| 35. | honeybee | social bee that makes honey |
| 36. | honeycomb | wax cells for brood and honey |
| 37. | hornet | large social wasp |
| 38. | imago | adult stage of an insect |
| 39. | instar | stage between molts |
| 40. | invertebrate | animal without a backbone |
| 41. | jewel beetle | metallic-looking beetle |
| 42. | katydid | leaflike long-horned insect |
| 43. | larva | immature feeding stage |
| 44. | leafcutter ant | ant that farms fungus |
| 45. | lice | tiny parasitic insects |
| 46. | maggot | fly larva |
| 47. | mantis | predatory insect with grasping legs |
| 48. | metamorphosis | developmental change in form |
| 49. | midge | small gnatlike fly |
| 50. | mosquito | biting fly, often blood-feeding |
| 51. | moth | usually nocturnal winged insect |
| 52. | nymph | immature stage of some insects |
| 53. | ocellus | simple light-sensing eye |
| 54. | odor pheromone | chemical signal for communication |
| 55. | ovipositor | egg-laying organ |
| 56. | parasitoid | larva develops on a host |
| 57. | pest | organism that damages crops or homes |
| 58. | pheromone | chemical used for signaling |
| 59. | pollinator | animal that transfers pollen |
| 60. | proboscis | tube-like feeding mouthpart |
| 61. | pupa | resting stage before adult |
| 62. | queen | reproductive female in colony |
| 63. | roach | common name for cockroach |
| 64. | robber fly | predatory fly that ambushes prey |
| 65. | scales | powdery wing covering in butterflies |
| 66. | scorpionfly | insect with long beaklike head |
| 67. | silk | fiber produced by some larvae |
| 68. | silverfish | wingless household insect |
| 69. | social insect | insect living in organized groups |
| 70. | soldier | defensive caste in colonies |
| 71. | spinneret | silk-spinning structure |
| 72. | spittlebug | nymph makes foamy shelter |
| 73. | stag beetle | beetle with large mandibles |
| 74. | stinger | sharp organ for defense |
| 75. | swarm | mass flight of insects |
| 76. | tarsus | foot segment of a leg |
| 77. | termites | wood-eating social insects |
| 78. | thorax | middle body segment |
| 79. | tick | blood-feeding arachnid, not insect |
| 80. | tracheae | air tubes for breathing |
| 81. | trophallaxis | food sharing mouth-to-mouth |
| 82. | true bug | piercing-sucking insect group |
| 83. | vector | organism transmitting disease |
| 84. | venom | toxin delivered by sting or bite |
| 85. | wasp | stinging insect, often predatory |
| 86. | wax | material secreted by bees |
| 87. | webspinner | silk-making insect that weaves galleries |
| 88. | wing | flight structure on adults |
| 89. | worker | nonreproductive laboring caste |
| 90. | xylem feeder | insect that drinks plant xylem |
| 91. | yellowjacket | aggressive social wasp |
| 92. | zany ant | informal name for erratic ant |
| 93. | zapper | device that kills flying insects |
| 94. | zebra midge | striped midge species |
| 95. | zebra swallowtail | striped swallowtail butterfly |
| 96. | zephyr moth | light, delicate moth |
| 97. | zigzag beetle | beetle with zigzag markings |
| 98. | zinc moth | moth with metallic sheen |
| 99. | zipper spider | spider with zipper-like pattern |
| 100. | zoea-like larva | crustacean-type larva, not insect |