September, 1941 
Lygus hesperus Knight, 151 
LOpistheurta clandestina Van Duzee, 131 
Phleum pratense 
Capsus ater (Linnaeus), 138 
Mirts dolabratus (Linnaeus), 127 
tStenotus binotatus (Fabricius), 175 
Phlox sp. 
tLopidea confluenta (Say), 87 
Lopidea davisi Knight, 87 
Picea excelsa 
{Phytocoris buenoi Knight, 197 
Picea mariana 
Plagiognathus suffuscipennis Knight, 40 
Picea sp. 
Psallus piceicola Knight, 44 
Pine; see Pinus 
Pine, Austrian; see Pinus nigra var. austriaca 
Pine, pitch; see Pinus rigida 
Pine, red; see Pinus resinosa 
Pine, Scotch; see Pinus sylvestris 
Pine, scrub; see Pinus virginiana 
Pine, Virginia; see Pinus virginiana 
Pine, white; see Pinus strobus 
Pine, yellow, see Pinus echinata 
Pinus echinata 
tEustictus filicornis (Walker), 66 
Pinus nigra var. austriaca 
Alepidia gracilis (Uhler), 119 
Pinus resinosa 
Alepidia gracilis (Uhler), 119 
Dichrooscytus suspectus Reuter, 166 
Phytocoris pinicola Knight, 201 
*Pilophorus vanduzeei Knight, 120 
Pinus rigida 
Phytocoris uniformis Knight, 201 
Pinus strobus 
tDeraeocoris nubilus Knight, 69 
*Deraeocoris pinicola Knight, 73 
Phytocoris diversus Knight, 200 
Phytocoris fuluus Knight, 201 
tPilophorus strobicola Knight, 122 
Platylygus luridus (Reuter), 147 
Psallus strobicola Knight, 45 
Pinus sylvestris 
Alepidia gracilis (Uhler), 119 
Dichrooscytus rufipennis (Fallen), 166 
Phytocoris pinicola Knight, 201 
tPilophorus strobicola Knight, 122 
tPilophorus uhleri Knight, 122 
*Pilophorus vanduzeei Knight, 120 
Pinus virginiana 
Alepidiella heidemanni Poppius, 119 
tDeraeocoris nigritulus Knight, 73 
Dichrooscytus suspectus Reuter, 166 
Phytocoris conspersipes Reuter, 201 
Phytocoris mundus Reuter, 201 
Pilophorus amoenus Uhler, 122 
Pilophorus laetus Van Duzee, 121 
Pinus sp. 
_ Deraeocoris albigulus Knight, 73 
 TLargidea grossa Van Duzee, 63 
Phytocoris angustifrons Knight, 201 
Plantago aristata 
{Lepidopsallus rubidus (Uhler), 47 
tPolymerus basalis (Reuter), 167 
Plantago lanceolata 
Flalticus bracteatus (Say), 77 
Plantain; see Plantago aristata 
latanus occidentalis 
Plagiognathus albatus (Van Duzee), 36 
_ Reuteria platani Knight, 95 
Poa compressa 
: 
; 
| 
KNIGHT: PLantT Bucs, or Miriwak, oF ILLINOIS ah DAS) 
Capsus ater (Linnaeus), 138 
Poa pratensis 
Miris dolabratus (Linnaeus), 127 
Polygonum muhlenbergii 
}Deraeocoris histrio (Reuter), 69 
Polygonum sp. 
{Garganus fusiformis (Say), 181 
tLygus plagiatus Uhler, 153 
Polymnia canadensis 
Dicyphus gracilentus Parshley, 54 
Lopidea confluenta (Say), 87 
Macrolophus tenuicornis Blatchley, 56 
Plagiognathus albifacies Knight, 35 
Polymnia uvedalia 
Lopidea confluenta (Say), 87 
Polymnia sp. 
Macrolophus separatus (Uhler), 55 
Poplar; see Populus 
Poplar, balsam; see Populus balsamifera 
Populus balsamifera 
Lopidea cuneata Van Duzee, 89 
Orthotylus knighti Van Duzee, 102 
Populus candicans 
Orthotylus knighti Van Duzee, 102 
Populus deltoides 
{Diaphnidia pellucida Uhler, 92 
Lopidea cuneata Van Duzee, 89 
Neolygus hirticulus (Van Duzee), 163 
tNeurocolpus nubilus (Say), 182 
Populus tremuloides 
tEustictus necopinus Knight, 66 
Orthotylus candidatus Van Duzee, 102 
Populus sp. 
Neoborus populi Knight, 142 
Potato; see Solanum tuberosum 
Prunus persica 
Neolygus caryae Knight, 162 
tNeolygus quercalbae Knight, 160 
Psedera quinquefolia 
Paracalocoris castus McAtee, 178 
Psedera sp. 
Neolygus hirticulus (Van Duzee), 163 
Ptelea trifoliata 
tParacalocoris scrupeus (Say), 177 
Pycnanthemum sp. 
tPhytocoris tibialis Reuter, 205 
Pyrus communis 
Neolygus communis Knight, 159 
*Phytocoris conspurcatus Knight, 188 
Pyrus coronaria 
Lygidea mendax Reuter, 146 
Pyrus malus 
Campylomma verbasci (Meyer), 25 
*Deraeocoris fasciolus Knight, 70 
Diaphnidia pellucida Uhler, 92 
*Eurychilopterella luridula Reuter, 73 
Heterocordylus malinus Reuter, 107 
Lygidea mendax Reuter, 146 
Paracalocoris pallidulus McAtee, 178 
*Phytocoris breviusculus Reuter, 190 
*Phytocoris conspurcatus Knight, 188 
*Phytocoris neglectus Knight, 194 
Plagiognathus politus Uhler, 29 
Quercus alba 
}Deraeocoris quercicola Knight, 71 
Diaphnidia provancheri (Burque), 92 
Microphylellus maculipennis Knight, 41 
+tMicrophylellus modestus Reuter, 41 
Neolygus geneseensis Knight, 159 
Neolygus omnivagus Knight, 163 
Neolygus quercalbae Knight, 160 
Neolygus semivittatus Knight, 163 
