Hæmatobia, 166, 304 irritans, 146 Hæmatobosca, 304 Hæmatomyidium, 288 Hæmatopinus spinulosus, 213 Hæmatopota, 294 Hæmatosiphon, 279 Hæmoglobinuria, 222 Hæmozoin, 189 Harpactor, 284 Harvest mites, 60 effect of, 59 Head-louse, 173 Helminthiasis, 138 Helophilus, 295 Hemiptera, 27, 86, 273-275 Heteropodidæ, 13 Heuchis sanguinea, 55 Hexapod larvæ, 58 Hexapoda, 27, 80, 258 Hippelates, 297 Hippobosca, 285 Histiogaster, 269 spermaticus, 132 Homalomyia, 136, 138, 300 Honey bee, 36 poison of, 37 Hornets, 43 Horn-fly, 137, 304, 308 Horse-fly, 110, 165 House-fly, 137-139, 144, 183 control of, 156, 160 Human flea, 124 Host, definitive, 175 intermediate, 175 primary, 175 Hyalomma, 264 ægypticum, 224-225 Hydrocyanic Acid Gas, 318 Hydrotæa, 300 Hymenolepis diminuta, 176 Hymenoptera, 36, 275 Hypoderma, 113, 298 diana, 113 lineata, 113 Hypopharynx, 80 Immunity from stings, 39 Incomplete metamorphosis, 80 Infantile paralysis, 162, 241 splenic, 220 Direct inoculation, 164 Insects, 258 blood-sucking, 170 Intermediate host, 192, 203 Intestinal infestation, 112, 133 myasis, 137 Isosoma, 69 Itch, 73-74 mite, 73 Norwegian, 77 Ixodes, 260 ricinus, 66, 225 scapularis, 66 Ixodidæ, 64-65 Ixodoidea, 62 Janthinosoma lutzi, 116 Jigger, 60 Johannseniella, 110, 288 Journal of Tropical Medicine and Hygiene, 36 Julus terrestris, 25 June bug, 185 Kala-azar, 220 Karakurte, 14 Katipo, 14 King, A. F. A., 3 Kircher, Athanasius, 1, 8 Kissing-bug, 31 Labium, 29, 80 Labrum, 28, 80 Lachnosterna, 185 Lælaps, 266 Lagoa crispata, 45 Lamblia intestinalis, 154 Langer, Josef, 37 Larder beetles, 135 Latrodectus, 12, 14, 17 mactans, 15 Leishmanioses, 220 Lenticular fever, 237 Lepidoptera, 274 Lepidopterous larvæ, 134 Leprosy, 252 Leptidæ, 112 Leptis, 295 Leptus, 60, 273 Lice, 80 Linguatulina, 258 Liponyssus, 265 Lœmopsylla, 172, 317 Lone star tick, 228 Louse, body, 84 crab, 85 dog, 176 head, 82 pubic, 85 Lucilia, 136, 312 Lycosa tarantula, 10 Lycosidæ, 10 Lyctocoris, 279 Lygus pratensis, 33 Lymphangitis, 67 Lymph scrotum, 178 Lyperosia, 304 Lyperosiops, 305 Macloskie, 34 Maggots, rat-tail, 137 Magnes sive de Arte Magnetica, 8 Malaria, 186 Malmigniatte, 14 Mandibles, 28, 80 Mange, 73-75 Margaropus, 237, 264 annulatus, 223 Masked bed-bug hunter, 32 Mastigoproctus giganteus, 19, 80 Maxillæ, 28 Meal infesting species, 135 Melanin granules, 189 Melanolestes, 280 picipes, 32 Mena-vodi, 14 Mercurialis, 1 Merozoites, 190 Metamorphosis, 80 Miana bug, 63 Microgametoblast, 192 Midges, 107 Migratory ookinete, 192 Millipedes, 25, 257 Mites, 23, 58 Monieziella, 269 Mosquitoes, 33, 97, 178, 196, 250 treatment for bites of, 34, 36, 102 Musca, 137, 307 domestica, 139, 145, 146, 157, 162 Muscidæ, 117 Muscina, 137, 146, 307 stabulans, 140 Mutualism, 57 Myasis, 112, 135 intestinal, 135-140 nasal, 141 Mycterotypus, 287