Dec, 1920 Bulletin of the Brooklyn Entomological Society 159 



Prenolepis silvestrii, 72 et seq. 

 Protenor, 27 

 Psephenus, 96 

 Pseudolina, 117 

 Pseudomyrma, 74, 79 

 Pseudotsuga (plant), 41 



taxifolia, 36 

 Pyrus (plant), 62 



Quercus agri folia (plant), 46 

 cuspidata, 115 

 dentata, 115 

 glandulifera, 116 

 lobata, 35 

 macrocarpa, 61 



Rhagovelia obesa, 67 et seq. 

 Rhamphocorixa acuminata, 88 



balanodis, 88 

 Rheumatobates rileyi, 19, 67 et seq. 

 Rickia wasmanni (fungus), 72 et 

 seq. 



formicola, 72 et seq. 



Salix nigra (plant), 57 

 Sannina uroceriformis, 28 

 Sarcophaga apertella, 106 



magna, 107 



savory i, 105 



wrangeliensis, 107 

 Sigara coleoptrata, see Cymatia 

 Simulium, 96 

 Sphecius speciosus, 128 

 Stenelmis, 132, I33, I37 

 Stilbum formicarum (fungus), 75 

 et seq. 



Stratiomyia, 131 



Thyreocoris lateralis, 142 

 Tibicen auletes, 129 



canicularis, 129 



linnei, 129 



lyricen, 129 



sayi, 129 



septemdecim, 18 

 Tilia (plant), 62, 66 

 Thaumastocoris australicus, 98, 102 

 Teleonemia slossoni, yo 

 Tenthredo mellina, 113 



neoslossoniae, 113 



smectica, 113 



yuasi, 112 

 Torrubia formicivora (fungus), 78 



unilateralis, 79 

 Trepobates pictus, 19, 67, et seq. 

 Typhlocyba querci, 48 



rubriocellata, 48 



Ulmus (plant), 56 

 americana, 97 



Xylastodoris, 100 



luteolus, 97 et seq. 

 Xylotrechus cinereus, 41, 42 



disruptus, 43 



fuscus, 42 



incongruus, 42 



insignis, 42, 43 



subsp. nunnemacheri, 43 



mormonus, 43 



obliteratus, 43 



undulatus, 41, 42 



New genera in this index, 2. 

 New species, 47. 



