495 

 Index 



tenuipes, 453 



uxorcula, 452 



viridis, 451 



walkeri, 452 

 Dolkrila, 175 

 Dolophilodes, 247 

 key to species: males, 247 



aequalis, 248 



distinctus, 247 



dorcus, 248 



novusamericanus, 248 



pollidipes, 248 

 Donacia, 293, 324, 367, 368 

 key to species: adults, 368 



distincta occidentalis, 369 



emarginata, 369 



germari, 369 



hirticollis, 368 



longicollis, 369 



piscatrix, 368 



proxima californica, 369 



pubescens, 368 



pusilla pyritosa, 369 



subtilis magistrigata, 369 

 Donaciidae, 367 

 Donaciinae, 367, 368 

 Dorocordulia, 124, 125 

 Dragonflies, 106 

 Dromogomphus, 114 

 Drusinus, 259, 261 



edwardsi, 261 

 Dryopidae, 293, 298, 299, 354 

 key to genera: adults, 355; larvae, 

 356 

 Dryops, 354, 356, 367 



arizonensis, 355, 356 

 luridus, 355 

 Dubiraphia, 357, 358, 359, 361 

 key to species: adults, 362 



brunnescens, 362 



giulianii, 362 

 Dung flies, 478 

 Dyarella, 404 

 Dyschirius, 331 

 Dysmicohermes, 233 

 key to species: adults, 233 



crepusculus, 232, 233 



ingens, 230, 233 

 Dythemis, 125, 135 



velox, 135 

 Dytiscidae, 293, 297, 298, 305, 334 

 key to genera: adults, 309; larvae, 

 312 

 Dytiscinae, 310 

 Dytiscini, 312, 313 



Dytiscus, 291, 294, 307, 308, 312, 314 

 key to species: 322 

 anxius, 323 

 dauricus, 323 



hatchi, 323 



marginalis, 294 



marginicollis, 323 



Ecclisomyia, 259, 262 

 key to species: male, 263 



bilera, 263 



conspersa, 263 



maculosa, 263 



scylla, 263 



simulata, 263 

 Eccoptura, 180 

 Echinohelea, 426 

 Ectoparia, 365, 366 

 Edmundsius, 89, 91 



agilis, 91 

 Einfeldia, 423 



Electric light bugs, 203 

 Elgiva, 477 

 Ellipes, 154 

 Klliptera, 379, 381 

 astigmatica, 383 

 clausa, 383 

 Elmidae, 294, 298, 299, 356 

 key to genera: larvae, 359; adults, 

 360 

 Elmini, 359, 360 

 Elodes, 350, 352, 353 

 key to species: adults, 353 

 apicalis, 354 

 aquatica, 353, 354 

 hausmanni, 351 

 marginata, 351 

 minuta, 351 

 nunenmacheri, 354 

 Elophila, 271 



brunnildalis, 284 

 kearfottalis, 284 

 satanalis, 284, 285 

 schaefferalis, 283 

 truckeealis, 285 

 Elophilus, 462 

 Elsianus, 358, 360, 362 



moestus, 3 62 

 Embioptera, 155 

 Empididae, 374, 376, 377, 457 



key to genera: adults, 457 

 Empidinae, 457 

 Emplenota, 347, 348 

 key to species: adults, 348 

 arenaria, 348 

 pacifica, 348 

 Enaliagma, 142, 145, 146 

 key to species: males, females, 147; 

 naiads, 149 

 anna, 147, 149 

 boreale, 147, 148, 149 

 carunculatum, 147, 148, 149 

 civile, 147, 148, 149 

 clausum, 147, 148, 149 

 cyathigerum, 147, 148, 149 

 praevarum, 147, 149 

 Endalus, 370 

 key to species: adults, 37C 

 limatulus, 370 

 ovalis, 370 

 Endeodes, 349 

 key to species: adults, 349 

 basalis, 349 

 blaisdelli, 349 

 collaris, 349 

 insularis, 349 

 rugiceps, 349 

 Endochironomus, 422 

 Enhydrinae, 329 



Enochrus, 295, 336, 338, 340, 341, 422 

 key to species: adults, 345 

 californicus, 345 

 carinatus, 345 

 conjunctus, 345 

 cristatus, 345 

 cuspidatus, 345 

 diffusus, 345 

 fucatus, 345 

 hamiltoni pacificus, 345 

 hamiltoni pyretus, 34 5 

 latiusculus, 345 

 obtusiusculus, 345 

 pectoralis, 345 

 Entomobrya, 77 

 laguna, 74, 77 

 clitellaria, 77 

 Entomobryidae, 76 

 key to genera, 77 



Kntomobryoidea, 76 

 Eoparargyractis, 274, 275, 277 

 Eotrechus, 184 

 Kphemera, 82, 84 

 Bphemerella, 94 

 key to species group.s: male adult , 

 94; nymphs, 95 

 cognata, 96 

 coloradensis, 96, 97 

 delantala, 98 

 doddsi, 96, 97 

 euterpe, 97 

 flavilinea, 96, 97 

 glacialis carsona, 96, 97 

 hecuba, 98 

 heterocaudata, 98 

 hystris, 98 

 inermis, 98 

 infrequens, 98 

 levis, 96 

 lodi, 98 

 maculata, 97 

 micheneri, 96 

 mollitia, 98 

 pelosa, 98 

 proserpina, 97 

 sierra, 97 

 soquele, 96 

 spinifera,96 

 spinosa, 98 

 teresa, 96 

 tibialis, 96 

 yosemite, 97 

 Ephemerellinae, 89, 94 

 Ephemeridae, 82, 84 

 key to genera: adults, 82; nymphs, 83 

 wing venation, 83 

 nymph, 83 

 Ephemeroptera, 71, 72, 79 

 collecting methods, 79 

 classification. 82 



key to families: adults, 82; nymphs, 82 

 Ephoron, 82, 84 

 Ephydatia, 23 5 

 Ephydra, 466, 472 

 key to species: adults, 473 

 auripes, 473 

 cinerea, 190, 372, 473 

 riparia, 473 



riparia var. macellaria, 473 

 Ephydridae, 372, 375, 376, 462 

 keys to genera: adults, 463; larvae, 

 466 

 Ephydrinae, 462, 463, 472 

 Ephydrini, 466, 472 

 Epiaeschna, 120, 121 

 Epicordulia, 124, 125 

 Epimetopinae, 337 

 Epimetopus, 336, 337 

 Eretes, 307, 312, 313 



stricticus, 308, 322 

 Eretmoptera, 408, 415 



browni, 415 

 Eriocera, 381 

 Erioptera, 378, 379, 381 

 bispinosa, 383 

 fenderi, 383 

 millardi, 383 

 nitida, 383 

 palomarica, 383 

 perflaveola, 383 

 sackeniana, 383 

 sequoiae, 383 

 squamosa, 383 

 Eriplanus, 327 

 cushmani, 327 



