497 

 Index 



affinis, 329 

 assimilis, 327, 328 

 bifarius, 329 

 consobrinus, 329 

 parous californicus, 329 

 picipes, 330 

 pleuralis, 329 

 plicifer, 328, 329 

 punctellus, 329 



Habitats, marine, 20 

 estuaries, 20 

 intertidal, 20 

 marshes, 20 

 classification of, 21 

 Habitats, miscellaneous, 21 

 bogs, 21 



snow and ice, 21 

 treeholes, 21 

 Habrophlebia, 92 

 Habrophlebiodes, 92 

 Hagenius, 114 

 Haliplus, 303, 304 

 key to species: adults, 304 



concolor, 305 



cylindricus, 305 



dorsomaculatus, 305 



gracilis, 305 



leechi, 305 



mimeticus, 305 



robertsi, 305 



rugosus, 305 



subguttatus, 305 



tumidus, 303 



wallisi, 303 

 Haliplidae, 293, 297, 298, 302 

 key to genera: adults, 304; larvae, 

 304; pupae, 304 

 Halobates, 185, 186, 212, 213 



sericeus, 213, 215 

 Halobatinae, 184, 186, 212, 213 

 Halovelia, 215 

 Hamatabanus, 44 5 

 Haplometra, 294 



cylindracea, 294 

 Harnischia, 409, 411, 412, 423 

 Hastaperla, 159, 162, 177 



brevis, 177 



chilnualna, 177 

 Hearlea, 404 

 Hebridae, 183, 185, 186, 188, 220 



key to genera: 221 

 Hebroveliidae, 184 

 Hebrus, 185, 220 

 key to species: 221 



concinnus, 220 



hubbardi, 220, 221 



ruficeps, 220 



sobrinus, 220, 221 

 Hecamede, 464, 467 



persimilis, 467 

 Hecamedoides, 465 



glaucella, 467 

 hecuba group, 94, 95, 98 



hecuba, 98 

 Hedriodiscus, 439, 442 

 key to species: adults, 442 



currani, 442 



trivittatus, 442 



truquii innotata, 442 



truquii truquii, 442 



vertebrata, 442 

 Hedroneura, 477 

 Helaeomyia, 465 



petrolei, 372, 468, 469 



Helea, 425, 434 

 key to species: adults, 434 

 culicoidithorax, 435 

 longipennis, 434 

 mallochi, 434 

 pruinosa, 435 

 stigmalis, 435 

 Heleidae, 373, 375, 377, 424 

 keys to genera: adults, 425; larvae, 

 426; pupae, 428 

 Heleinae, 425, 428, 432 

 Heleini, 425, 434 

 Ileleodromia, 457 

 Helichus, 354, 356 

 key to species: adults, 356 

 foveatus, 355, 356 

 immsi, 355, 356 

 lithophilus, 355 

 productus, 355, 356 

 suteralis, 355, 356 

 Helicopsyche, 269 

 borealis, 269 

 mexicana, 269 

 Helicopsychidae, 242, 269 

 Helius, 379, 381 

 Helobata, 338 



Helochares, 336, 338, 340, 341 

 Helocombus, 338 

 Helocordulia, 124, 125 

 Helodidae, 293, 298, 299, 350 

 key to genera: adults, 353; larvae, 

 353 

 Helophilus, 461, 462 

 fasciatus, 462 

 latifrons, 462 

 Helophoridae, 331 

 Helophorinae, 337 



Helophorus, 293, 299, 331, 334, 337, 

 339, 341 

 angustulus, 342 

 fortis, 342 

 linearis, 342 

 obscurus, 342 

 Helopicus, 175 

 Helotrephidae, 199 

 Hemerodromia, 457 

 key to species: adults, 458 

 brevifrons, 458 

 rogatoris, 458 

 seguyi, 458 

 Hemerodromiinae, 457, 458 

 Hemiptera, 71, 72, 182 

 collecting methods, 186 

 distribution, 183 

 ecology, 185 

 evolution, 183 

 flight, 186 

 respiration, 186 

 stridulation, 186 



key to families: habits and habitats, 

 185; eggs, 185; morphological, 

 187 

 Hemiteles, 327 



cheboyganensis, 327 

 gyrinophagus, 327 

 hungerfordi, 327 

 Hemitelopteryx, 476 

 Heptagenia, 84, 85, 86 

 key to species: adult male, 86; 

 nymphs, 86 

 kennedyi, 86 

 elegantula, 86 

 rubroventris, 86 

 Heptageniidae, 82 

 key to genera: adults, 84; nymphs, 85 

 wing venation, 83 

 nymph, 83 



Heptagyia, 408, 410, 412, 4 1 1 

 lleniK'tiinae, 439 

 llermione, 439, 110 

 Hesperagrion, 142 

 Hesperocorixa, 189, 191, 193 

 key to species: 194 



laevigata, 191, 193, 194 



vulgaris, 196 



I I'-; pel opcr la, I SO 



Hesperophylax, 259 

 key to species: males, 260 



incisus, 260 



mag n us, 260 



minutus, 260 



occidentalis, 261 

 Iletaerina, 136, 137 

 key to species: males, females, 137 



americana, 137 



vulnerata, 13 7 

 Heterelmis, 358, 360, 362 



ylaber, 362 

 Heterlimnius, 358, 360, 362 

 key to species: adults, 363 



corpulentus, 363 



koebelei, 357, 363 

 Heteroceridae, 298, 299 

 Heteromyia, 426 

 Heteroplectron, 263 



californicum, 263 

 Hexacylloepus, 358, 362 



ferrugineus, 362 

 Ilexagenia, 82, 84 



limbata californica, 84 

 Hexatoma, 378, 381, 382 



albihirta, 383 



austera, 383 



azrael, 383 



brevipila, 383 



californica, 383 



mariposa, 383 



obscura, 383 



palomarensis, 383 



parva, 383 



saturata, 383 



sculleni, 383 

 Histeridae, 298, 299 

 Holorusia, 378, 381 



grandis, 382 



rubiginosa, 382 

 Homoplectra, 250 

 key to species: males, 251 



alseae, 251 



nigripennis, 251 



oaklandensis, 252 



shasta, 252 



spora, 252 

 Hoperius, 312 

 Hoplitimyia, 439 

 Hoplodictya, 477 



spinicornis, 477 

 Horn fly, 479 

 Horseflies, 372, 443 

 Horse stinger, 106 

 House-fly, 479 

 Hump-backed flies, 459 

 Husseyella, 215, 217 

 Hyadina, 465 

 key to species: adults, 472 



binotata, 472 



pruinosa, 472 

 Hyadinini, 465, 471 

 Hybomitra, 445, 448 

 Hybotinae, 457 

 Hydaticini, 312 

 Hydaticus, 294, 307, 312, 313 



modestus, 322 

 Hydatophylax, 259, 263 



