Chironomidæ, 107 Chorioptes, 270 Chrysomelid, 55 Chrysomyia, 136, 308 Chrysomyia macellaria, 117, 140 Chrysops, 294 Chylous dropsy, 179 Chyluria, 178 Cicadidæ, 55 Cimex L., 278 Cimex boueti, 92 Cimex columbarius, 92 Cimex hemipterus, 91, 220 Cimex hirundinis, 92 Cimex inodorus, 92 Cimex lectularius, 87, 219 Citheronia regalis, 44 Clinocoris, 87 Coleoptera, 134, 274 Comedons, 80 Complete metamorphosis, 80 Compressor muscle, 20 Compsomyia, 117 Cone-nosed bed-bug, 92 Conjunctivitis, nodular, 52 Conorhinus, 282 Conorhinus megistus, 93, 219-220 Conorhinus rubrofasciatus, 220 Conorhinus sanguisugus, 32, 92 Copra itch, 72 Cordylobia, 118 Coriscus, 280 Coriscus subcoleoptratus, 32 Creeping myasis, 112 Crustacea, 257 Cryptocystis, 176 Cryptotoxic, 54-55 Cteniza sauvagei, 13 Ctenocephalus, 120, 172, 213, 317 Culex, 194, 201, 293 Culex pipiens, 35, 98 Culex quinquefasciatus, 180 Culex sollicitans, 200 Culex territans, 101 Culicidæ, 33, 97 Culicin, 34 Culicoides, 109, 288 Cyclops, 183, 257 Cynomyia, 136, 311 Dance, St. Vitus, 8 Dancing mania, 8 Deer-flies, 110 Definitive host, 192 Demodecidæ, 78 Demodex, 259 Demodex folliculorum, 78 Dermacentor, 262 Dermacentor andersoni, 67, 228 Dermacentor occidentalis, 227 Dermacentor variabilis, 67 Dermacentor venustus, 24, 228 Dermanyssidæ, 68 Dermanyssus, 266 Dermanyssus gallinæ, 68 Dermatitis, 72, 77, 85 Dermatobia, 115, 298 Dermatobia cyaniventris, 163 Dermatophilus, 317 Dermatophilus penetrans, 60, 126 Diamphidia simplex, 55 Dimorphism, 65 Direct inoculators, 4 Diplopoda, 25, 257 Diptera, 33, 94, 274 Dipterous Larvæ, 135 Dipylidium, 175, 221 Dipylidium caninum, 4, 175-176 Dog flea, 172 Dracunculus, 257 Dracunculus medinensis, 182 Drosophila, 296 Dum-dum fever, 220 Dysentery, 154 Ear-flies, 110 Earwig, 177 Echidnophaga, 317 Echinorhynchus, 185 Elephantiasis, 178-179 Empoasca mali, 33 Empretia, 46 English Plague Commission, 171 Epeira diadema, 18 Epizootic, 170 Eristalis, 137, 295 Essential hosts, 4, 165 Eumusca, 307 European Relapsing Fever, 233 Euproctis chrysorrhœa, 48 Eusimulium, 286 Facultative parasites, 131 Fannia, 136, 138, 145, 300 Federal Health Service, 169 Fever, lenticular, 237 African Relapsing, 230, 234 Carrion's, 253 dum-dum, 154 European Relapsing, 233 pappatici, 96 red water, 220 Rocky Mt. Spotted, 226 three day, 96 Typhus, 237 Filaria, 178, 221 immitis, 182 Filariasis, 178 Flannel-moth larvæ, 44 Fleas, 119, 166, 213 cat, 172 dog, 172 human, 172, 176 rodent, 123, 172 rat, 171 Flesope, 125 Formaldehyde, 91 Fomites, 199, 204 Fulgoridæ, 28 Fumigation, 320 Gamasid, 68 Gangrene, 129 Gastrophilus, 113, 297 Giant crab spiders, 13 Giant water bugs, 30 Gigantorhynchus, 185 Glossina, 117, 297, 303 Glossina morsitans, 214, 217 palpalis, 215, 217, 218 Glyciphagus, 267 Grain moth, 69 Grocer's itch, 72 Guinea-worm, 182 Habronema muscæ, 156, 183