myiasis of larvae 



Myiolepta 14, 39, 



nigra 



strigilata 



varipes 



Neoascia 35, 



g'lobosa 



Nephrocerus 



Narcissus 10, 39, 



Narcissi 



Notosolenus 



nymphal membrane 28, 



Nympheaceae - 



Nyssa sylvatica 



Oak .-' 



Ocyptamus fuscipennis 



Odynerus philadelphiae 



oesophageal framework.. 19, 20, 



Ohio Academy of Science 



Ohio Vascular Plants 



(Index) 



Okatabaceae 



Old Man's Cave 253, 



olfactory pits 



Oleaceae 



Onagaraceae 



onion 10, 39, 47, 



Ophicglossaceae 



Ophioglossales 



Opuntia missouriensis 



ovanfie 



Orobanchaceae 



Orthoneura 



Orthorrhapha 



Orchidaceae 



Osborn, Herbert, cited 



Osburn, R. C, cited 



Osmundaceae 



Osten, Sacken, cited 



12, 39, 47, 64, 69 



oviposition 16, 44, 



Oxalidaceae 



Oxydendron 



Oxydendrum arboreum 



Panicum dichotomum 



latifolium 



sphaerocarpon 277, 



Papaveraceae 



Paragus 14, 22, 39, 40 



angustifrons 



bicolor 15, 27, 50, 53, 54, 63 



tibialis 15, 50, 54, 63 



Parmelia sp 



Parnassiaceae 



Parthenocissus 



Parthenocissus quinquefolia..269, 

 Passifloraceae 



47 

 64 

 83 

 83 

 83 



67 



89 

 14 



47 

 71 



30 

 308 

 273 



73 



84 



37 



26 



13 



131 



239 



325 



288 



32 



329 



327 



74 



306 



306 



68 



64 



331 



39 



13 



314 



11 



12 



306 



, 72 

 45 

 317 

 275 

 280 



280 

 268 

 280 

 316 

 , 63 

 82 

 , 82 

 , 82 

 277 

 316 

 266 

 275 

 319 



Passiflora lutea 275 



Pelecocera pergandei 88 



Pellaea atropurpurea 286 



Pemphigus 40, 43, 45 



vagabundus 57 



Penthorum sedoides 264 



Peramium pubescens 269, 291 



Peranema 413 



Peridei-mium strobi 301 



Perkins, cited 64 



persimmon 58 



Petalomonas 408 



Phacus 377 



Philhelius 87 



Philippi, cited 12 



Phlox maculata -.... 264, 267 



phoebe 49 



Phoridae 13 



Phragmites 45, 55, 56 



Phrymaceae 333 



Phylloxera vastatrix 62 



Phylogeny of Syrphidae 14 



Phytolaccaceae 320 



Phyrma leptostachya 276 



phytophagous larvae 23, 25, 38 



Pinaceae 308 



pine 72 



Pinus virginiana 283 



Pipunculidae 13 



Pinus rigida 281 



strobus 301 



virginiana 281 



Pipiza 14, 15, 39 



Pipiza albipilosa 81 



calcarata 81 



femoralis 62, 81 



festiva 81 



frandiilenta 81 



modesta 81 



nigribarba 81 



nigripilosa 81 



pisticoides 81 



pulchella 81 



radicum 62, 82 



salax 81 



Plantaginaceae 333 



Plants. Ohio Vascular (Index).. 239 



Platanus 266 



Plates of Syrphidae 101-123 



Platychirus 33, 39 



hyperboreus 85 



peltatus 15, 85 



quadratus 65, 85 



scutatus - 65 



Platypezidae 13 



Fceotia 421 



Plusia gamma 40 



iota 40 



456 



