3H 



NATURALIST IN THE GREAT LAKES REGION 



Coleoptera, Beetles Continued 



Galerites janus, yellow-legs, 153 



Galetucella luteola, 223 



Graphisurus fasciatus, 225, 226 



Gyrinus, whirligig beetles, 105, 186, 187 



Hydrophilidae, water-scavenger 



beetles, 186, 239 

 Lacon rectangularis, 161 

 Liophus alpha, 226 

 Meracintha contracta, darkling beetle, 



228 



Molorchus bimaculatus, 225, 226 

 Monohammus scutellatus, a long-horn 



beetle, 158, 159 



Nyctobates pennsylvanica, 228 

 Oncideres cingulatus, hickory girdler, 



222 



Parandra brunea, heartwood borer, 



227, 227 

 Passalus cornutus, horned Passalus, 



219, 220, 227, 228 

 Pisenus humeralis, fungus beetle, 



219, 220 

 Plectrodera scalator, cottonwood borer, 



156 



Prasocuris phellandrus, 161 

 Psephenus lecontei, brook beetle, 287, 



289 

 Saperda: 



later alls, 226 



tridentata, elm borer, 224, 225 



vestile, 226 



Sphenophorus, snout beetles, 155 

 Stenosphenius tenebrioides, 228 

 Tetraopes tetraophthalmus, milkweed 



beetle, 230 

 Tymnes: 



matasternalis, leaf beetle, 223 



tricolor, leaf beetle, 223 

 Uloma impressa, darkling beetle, 228 

 Xanthonia lo-notata, 223 

 Xylopinus saperdioides, 227 

 Xylotrechus colonus, rustic borer, 224, 



225 



Columbine, Aquilegia canadensis 

 Compass plant, Silphium laciniatum 

 Coneflower, Brauneria purpurea 

 Conglomerate, 71 

 Continents, 41 

 Corals, 49, 50 

 Corn plant association, 108 

 Corn root aphis, 108 

 Cotton-boll weevil, 301 

 Cottonwood association, 115, 120, 122 



Cress, bitter, Cardamine 



Crickets, see Orthoptera 



Crustaceans: 



Acropertts, 290 



Asellus, the water sow. bug, 93, 94 



Cambarus: 



diogenes, 252 



gracilis, 252, 254 



virilis, crayfish, 234 

 Canthocampus, 93, 290 

 Cyclisticus convexus, sow bug, 218 

 Cyclops, 93, 94, 290 

 Cypris marginata, 93, 94 

 Daphnia, 93, 94, 290 

 Eubranchipus serratus, the fairy 



shrimp, 92, 93 

 Eucrangonyx gracilis, bender or scud, 



178 

 Gammarus fasciatus, the bender, 93, 



177 



Hyalella knickcrbockeri, bender, 177 

 Leptobora, 290 

 Palaemonetes paludosus, the shrimp, 



93, 240 



Porchellio rathkc, sow bug, 218 

 Crystal, 68 



Culver's root, Veronica virginica 

 Cup plant, Silphium perfoliatum 



Dalles of the Wisconsin, 6, 7 



Damsel fly, see Odonata 



Damsel- fly nymph, 105, 186 



Delwood Park, 10 



Deposition, 15; of river, 16 



Desplaines River, 3, 66, 80, 83 



Desplaines Bay, 80, 83 



Devonian period, 33, 38, 50, 55, 58 



Diabase, 75 



Difflugia, 290 



Digger wasp association, 150, 154, 156, 



163 



Diorite, 75, 76 

 Diptera, Flies: 



Chironomus, a midge, 175, 287 

 Corethra, 290 

 Culex, mosquito, 104, 187 

 Exoprospa, bee fly, 154 

 Simulium, black fly, 186, 287 

 Distribution of plants and animals, 



factors determining, 90 

 Dobson, larva of Corydalis cornuta, 186 



