322 A NATURALIST IN THE GREAT LAKES REGION 



May-fly, 95; nymph, 186, 239 

 Meadow rue, Thalidrium dasycarpum 

 Meadow-sweet, see Shrubs 



Mermaid weed, false, Proserpinaca 



palustris 

 Mesophyte, g6 

 Mesozoic, 30, 31 

 Meteorite, 23 

 JMeteors, 23 

 Mica, 71 



]Millipede, see Myriopoda 

 Milfoil, Myriophyllum hcterophyllum 

 ]Milkweed, Asdepias 

 jMilkweed, green, Acerates vi r id i flora 

 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, <5j; terminal, 19, 20, 



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

 Morris basin, 62, 66 

 Mosquito larvae, 104 

 Moths, see Lepidoptcra 

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

 Mullein, Verhasciim Thapsus 

 Myriopoda, Centipedes and Millipedes: 



— Fontaria corrugate, 218, 218 



— Geophilus ruhens, 218 



— Lithohius, 224 



— Lysiopetalum lactarium, 218 



— Polydesmus, 224 



— Spirobolus marginatus, 218 



Nebula, 25 



New Buffalo, 4 



Niagara limestone, t,t„ 36, 38, 44, 47, 5'*^ 



North America, beginnings of, 41 



Oak-hickory association, 115, 221 



Odonata, Damsel flies: 



— Ischnura verticalis, 177, 777 



— Lestes Jorcipattis, 16 g, 169, 170, lyo 



Odonata, Dragon flies: 



— Aeschna, 184, 281 

 — Aeschnidae, 281 

 — Agrionidae, 280 



— Anax Junius, 184, 185, 239, 281 

 — Boyeria, 184, 281 



— Calopterygidae, 280 



— Celcthemis eponina, i6q, 170 



— Cordidcgastcr ohUquus, lance-head 



dragon fly, 269 

 — Cordulcgastcridac, 281 

 — Diastatomma, 281 

 — Dromogomphus, 281 

 — Epicordidia, 282 

 — Gomp/iidae, 281 

 — Gomphus spicatus, 174, 174, 185, 239, 



282 

 — Hagenius, 281 

 — Leucorhinia intacta, iS;y, 185 

 — Libellida pidchclla, 185, 188, 239 

 — Libellulidae, 281, 282 

 — Macromia, 282 

 — Progomphus, 281 

 — Somatochlora, 28 j 

 — Tetragoneuria, 283 

 — Tramea lacerta, i6g 

 Oceans, origin of, 27 

 Olivine, yj 



Onion, wild, Allium cernuum 

 Orchids: 



— Arethusa hidhosa 

 — Grass pink, Calopogon pidchclliis 

 — Ladies'-tresses, Spiranthcs Roman- 



zoffiana 

 — Ragged, Hahcnaria lacera 

 — Yellow lady's-slipper, Cypripedium 



parviflorum 



Ordoxdcian period, 34, 38, 46, 48 



Orthoptera: 



— Ageneotettix arenosiis, sand locust, 



157, 1 58 

 — A mblycorypha: 



oblongifolia, oblong-wing katydid, 

 231, 241 



rotiuxdifolia, round-wing katydid, 

 224, 231 

 — Anoxipha exigua, small brown cricket, 



201 

 — Ceiithophilus maculatus, camel cricket, 



224, 225 

 — Chloealtis cons per sa, sprinkled locust, 



162, 163, 231 

 — Conoccphalus: 



ensiger, sword-bearing grasshopper, 

 163 



palustris, marsh conehead, 190, 192 

 — Cyrtophillus perspicillatus, katydid, 



222 

 — Diaphcromera femorala, common 



walking stick, 166 



