322 A NATURALIST IN THE GREAT LAKES REGION 



May-fly, 95; nymph, 186, 239 

 Meadow rue, Thalictrium polygonum 

 Meadow-sweet, see Shrubs 

 Mermaid weed, false, Proserpinaca 



palustris 

 Mesophyte, 96 

 Mesozoic, 30, 31 

 Meteorite, 23 

 Meteors, 23 

 Mica, 71 



Millipede, see Myriopoda 

 Milfoil, Myriophyllum heterophyllum 

 Milkweed, Asdepias 

 Milkweed, green, Acer ales mridiflora 

 Minerals, 68, 69; table of, 71-73 

 Minooka Ridge, 64 

 Mint, horse, Monarda punctata 

 Mixed oak association, 115, 165 

 Monadnock, 40 

 Moons, 21 

 Moon, craters of, 25 

 Moraine: ground, 63; terminal, 19, 20, 



61, 62, 64, 65, 66; Valparaiso, 78 

 Morris basin, 62, 66 

 Mosquito larvae, 104 

 Moths, see Lepidoptera 

 Mount Forest Island, 64, 78, 83, 85, 86 

 Mullein, Verbascum Thapsus 

 Myriopoda, Centipedes and Millipedes: 

 ~F Ontario, corrugate, 218, 218 

 Geophilus rubens, 218 

 Lithobius, 224 

 Lysiopetalum lactarium, 218 

 Polydesmus, 224 

 Spirobolus marginatus, 218 



Nebula, 25 



New Buffalo, 4 



Niagara limestone, 33, 36, 38, 44. 47, 5 8 



North America, beginnings of, 41 



Oak-hickory association, 115, 221 



Odonata, Damsel flies: 



Ischnura verticalis, 177, 177 



Lestes forcipatus, 169, 169, 170, 170 



Odonata, Dragon flies: 



Aeschna, 184, 281 



Aeschnidae, 281 



Agrionidae, 280 



Anaxjunius, 184, 185, 239, 281 



Boyeria, 184, 281 



Calopterygidae, 280 



Celethemis eponina, i6g, 170 



Cordulegaster obliquus, lance-head 



dragon fly, 269 

 Cordulegaster idae, 281 

 Diastatomma, 281 

 Dromogomphus, 281 

 Epicordulia, 282 

 Gomphidae, 281 

 Gomphus spicatus, 174, 174, 185, 239, 



282 



Hagenius, 281 

 Leucorhinia intacta, 185, 185 

 Libellula pulchella, 185, 188, 239 

 Libellulidae, 281, 282 

 Macromia, 282 

 Progomphus, 281 

 Somatochlora, 283 

 Tetragoneuria, 283 

 Tramea lacerta, 169 

 Oceans, origin of, 27 

 Olivine, 73 



Onion, wild, Allium cernuum 

 Orchids: 



Arethusa bulbosa 

 Grass pink, Calopogon pulchellus 

 Ladies'-tresses, Spiranthes Roman- 



zoffiana 



Ragged, Habenaria lacera 

 Yellow lady's-slipper, Cypripedium 



parviflorum 



Ordovician period, 34, 38, 46, 48 

 Orthoptera: 

 Ageneotettix arenosits, sand locust, 



157, 158 

 A mblycorypha: 



oblongifolia, oblong- wing katydid, 

 231, 241 



rotundifolia, round- wing katydid, 



224, 231 

 Anoxipha exigua, small brown cricket, 



201 

 Ceuthophilus maculatus, camel cricket, 



224, 225 

 Chloealtis conspersa, sprinkled locust, 



162, 163, 231 

 Conocephalus: 



ensiger, sword-bearing grasshopper, 



163 



palustris, marsh conehead, 190, 192 

 Cyrtophillus perspicillatus, katydid, 



222 

 Diapheromera femorata, common 



walking stick, 166 



