Head, 2 Heart, 4 Heliothis, 81 " armigera, 81 Helophilus, 58 " trilineatus, 58 " ineptus, 59 " hochstetteri, 59 Hemerobiidæ, 101 Hemiptera, 8, 118 Hepialus, 70 " virescens, 70 Hepialidæ, 69 Heterocera, 69 Heteromera, 29 Heteroptera, 118 Homoptera, 118 Host, 38 Hydradephaga, 22 Hydriomena, 91 " deltoidata, 91 Hymenoptera, 6, 33 Ichneumon, 38 " deceptus, 38 " sollicitorius, 38 Ichneumonidæ, 38 Ilium, 4 Imago, 4 Internal organs, 4 Insect, definition of, 1 Isonomeutis, 94 " amauropa, 94 Jaws, 2 Journal, 18 Killing insects, 10, 12 " bottle, 12 Labelling insects, 18 Labial palpi, 2 Labium, 2 Labrum, 2 Lace-wings, 101 Lamellicornes, 26 Larva, 4 Lasiorhynchus, 32 " barbicornis, 32 Laurel bottle, 12 Lepidoptera, 6, 65 Lestes colensonis, 104 Leucania, 78 " atristriga, 78 " nullifera, 77 Libanasa macropathus, 113 Libellulidæ, 103 Light, insects at, 14 Locusta, 116 " migratoria (?), 116 Locustidæ, 115 Longicornia, 30 Lower lip, 2 Lucanidæ, 26 Luminous larva, 49 Lycænidæ, 68 Lycæna, 69 " phoebe, 69