1928] 
Index 
245 
Protocoleoptera, 32 
Protocoleus, 33 
Prunus americana, 210 
Prunus maritima, 210 
Prunus padus, 210 
Prunus serotina, 212 
Pseudohypocera nigrofascipes, 137 
Pseudomethoca palliceps, 16 
PSEUDOMETHOCA SENEX, 16 
Pseudomyrma, 90 
Pseudophyllus, 130 
Pulp-making bee; 100 
Pyrameis atalanta, 201 
Reconstruction of nests by Polistes 
wasps, 151 
Sanaa imperialism 130 
South American Masarids, 191 
Sphecodes davisii, 61 
Spider from Utah, 235 
Stelis lateralis , 107 
Stelis sexmaculata, 107 
Stenamma, 87 
Stictocephala rotundata, 124 
Thermacarus nevadensis, 93 
Thermacarus thermobius , 92 
Thermal Springs, Coelambus from, 64 
Thermal Springs, mite from, 92 
Tibicen ( Diceroprocta ) biconica, 119 
Timulla senex, 20 
Tetraponera, 90 
Triepeoltjs tanneri, 232 
Triepeolus wyomingensis, 232 
Trigona pectoralis panamensis, 172 
Trachandrena albicans, 62 
Trimeria, 197 
Trimeria americana, 198 
Trimeria buyssoni, 194 
Trimeria howardi, 198 
Trimeria joergenseni, 198 
Trimeria neotropica, 198 
Triplaris americana, 167 
Trophallaxis in Polistes pallipes, 153 
Turkestan Jurassic insects, 126 
Typhlopone, 87 
Typhophyllum mutilatum, 130 
Typhoptera donovani , 130 
Typus gilmorei, 186 
Typus permianus, 186 
Typus whitei, 186 
Utah bees, 232 
Utah spider, 235 
Tachigalia paniculata, 167 
Tarsal chemical sense of Cochliomyia 
macellaria, 201 
Tetralonia costaricensis, 174 
Thaumatomyrmex cochlearis, 163 
Thaumatomyrmex ferox, 162 
Thaumatomyrmex from Cuba, 162 
Thaumatomyrmex mutilatus, 162 
Theridion murarium , 219 
Vanessa antiopa, 201 
Viticicola, 90 
Water mite from Thermal Springs, 92 
Working hours of ants, 114 
