JAW Ittinois NaturAL History SURVEY BULLETIN 
Aster, New England; see 4ster novae-angliae 
Aster novae-angliae 
Macrotylus amoenus Reuter, 51 
Aster, prairie; see Aster sericeus 
Aster sericeus 
Psallus astericola Knight, 45 
Aster umbellatus 
Polymerus opacus Knight, 170 
Aster undulatus 
Macrotylus sexguttatus (Provancher), 51 
Aster sp. 
Dicyphus discrepans Knight, 54 
Plagiognathus cuneatus Knight, 34 
Avena sativa 
Trigonotylus ruficornis (Geoffroy), 130 
Balm of Gilead; see Populus candicans 
Basswood; see Ti/ia americana 
Bean; see Phaseolus 
Bedstraw; see Galium aparine 
Bedstraw, northern; see Ga/ium boreale 
Beech; see Fagus 
Beech, blue; see Carpinus caroliniana 
Beech, water; see Carpinus caroliniana 
Beet, cultivated; see Beta vulgaris 
Beet, sugar; see Beta vulgaris 
Beta vulgaris 
tChlamydatus associatus (Uhler), 25 
Betula lutea 
+Deraeocoris betulae Knight, 70 
Neolygus fagi Knight, 161 
Orthotylus necopinus Van Duzee, 103 
Betula nigra 
tCeratocapsus pumilus (Uhler), 112 
*Deraeocoris poecilus (McAtee), 67 
t{Lopidea media (Say), 89 
tPhytocoris confluens Reuter, 205 
tPhytocoris puella Reuter, 207 
tPlagiognathus atricornis Knight, 35 
Plagiognathus similis Knight, 37 
Betula pumila 
Psallus parshleyi Knight, 44 
Betula sp. 
tPlagiognathus politus Uhler, 29 
Birch; see Betula 
Birch, red; see Betula nigra 
Birch, yellow; see Betula lutea 
Blackberry; see Rubus 
Bladder nut, American; see Staphylea trifolia 
Bluegrass; see Poa pratensis 
Bluegrass, Canada; see Poa compressa 
Box elder; see Acer negundo 
Brassica nigra 
Campylomma verbasci (Meyer), 25 
Bromus inermis 
Capsus simulans (Stal), 138 
Burning bush; see Evonymus atropurpureus 
Butternut; see Fuglans cinerea 
Buttonbush; see Cephalanthus occidentalts 
Calamagrostis canadensts 
Collaria meilleurii Provancher, 126 
Cane, switch; see Arundinaria tecta 
Carex vesicaria 
Teratocoris paludum J. Sahlberg, 128 
Carex sp. 
Teratocoris discolor Uhler, 128 
Carpinus caroliniana 
Ceratocapsus incisus Knight, 113 
Neolygus carpini, Knight, 164 
Neolygus johnsoni Knight, 162 
*Phytocoris canadensis Van Duzee, 193 
*Phytocoris erectus Van Duzee, 199 
+Phytocoris lacunosus Knight, 197 
Reuteria fuscicornis Knight, 94 
Carya tllinoensis 
Neolygus caryae Knight, 161 
Orthotylus ramus Knight, 100 
+Phytocoris albifacies Knight, 186 _ 
Plagiognathus caryae Knight, 38 
Carya ovata 
Neolygus caryae Knight, 161 
tNeolygus quercalbae Knight, 160 
Plagiognathus caryae Knight, 38 
Carya sp. 
Ceratocapsus fasciatus (Uhler), 109 
{Ceratocapsus nigellus Knight, 111 
+Deraeocoris grandis (Uhler), 71 
{Eustictus venatorius Van Duzee, 66 
tMicrophylellus modestus Reuter, 41 
Orthotylus ramus Knight, 100 
tParacalocoris scrupeus (Say), 177 
Phytocoris caryae Knight, 207 
Phytocoris infuscatus Reuter, 204 
Phytocoris onustus Van Duzee, 194 
Plagiognathus dispar Knight, 39 
tPlagiognathus politus Uhler, 29 
Castanea sp. 
Neolygus hirticulus (Van Duzee), 63 
Neolygus omnivagus Knight, 163 
Caulophyllum thalictroides 
Horcias dislocatus (Say), 173 
Cedar, red; see Funiperus virginiana 
Celery; see Apium graveolens 
Celtis occidentalis 
Paracalocoris celtidis Knight, 179 
Cephalanthus occidentalis 
Neurocolpus nubilus (Say), 182 
* Phytocoris canadensis Van Duzee, 193 
Chenopodium album 
Melanotrichus flavosparsus (Sahlberg), 96 
tReuteroscopus ornatus (Reuter), 48 
tReuteroscopus sulphureus (Reuter), 49 
Chestnut; see Castanea 
Chrysanthemum leucanthemum 
Plagiognathus chrysanthemi (Wolff), 31 
Chrysanthemum sp. 
tLopidea confluenta (Say), 87 
tPolymerus basalis (Reuter), 167 
tPsallus seriatus (Reuter), 45 
Chrysopsis villosa 
Polymerus chrysopsis Knight, 171 
Clematis virginiana 
Halticus intermedius Uhler, 77 
Clover; see Trifolium, Melilotus 
Clover, prairie; see Petalostemum purpureum 
Clover, red; see Trifolium pratense 
Clover, sweet; see Me/i/otus 
Clover, white; see Trifolium repens 
Cocklebur; see Xanthium 
Coltsfoot; see Tussilago farfara 
Conium maculatum 
Lygus campestris (Linnaeus), 154 
Coralberry; see Symphoricarpos orbiculatus 
Coreopsis sp. 
tPolymerus basalis (Reuter), 167 
Cornus alternifolia 
Neolygus communis Knight, 159 
Cornus amomum 
Plagiognathus cornicola Knight, 38 
Cornus paniculata 
Neolygus communis Knight, 159 
Cornus stolonifera 
Neolygus communis Knight, 159 
Cornus stricta 
Plagiognathus cornicola Knight, 38 
Vol. 22, Aria 
