1951] 
Index 
161 
Pachyabaris, 10 
Pachyabaris darlington I, 12 
Pachyabaris laevis, 14 
Pachyabaris minuta, 14 
Pachyabaris striolata, 13 
Pachyabaris subcord ata, 13 
P achy dinodes raffrayi darling- 
toni, 42 
Parapaolia superba, 108 
Philotarsidae, North American, 102 
Philotarsus kwakiutl, 104 
Phryganeidae, 20 
Protorthoptera, 108 
Pseudabaris minuta, 15 
Pseudanurophorus arctica, 131 
PSEUDOBLANKAARTIA BEQUAERTI, 87 
Psilobethylus foveolatus, 143 
Psilobethylus in the New World 
(Hymenoptera: Bethylidae), 141 
Psilobethylus lucidus, 146 
Psocoptera, 102 
Pterostichini, 1 
Redescriptions of Some New Callis- 
tinae (Coleoptera, Carabidae) 
from East Africa, 42 
Rogeria azumai, 124 
Schaefferia variabilis, 125 
Sciarid Larvae, 73 
Sierrobius, 5 
Sierrobius bistriatus, 8 
Sierrobius laevigatus, 8 
Sierrobius parvulus, 10 
Sierrobius smaragdinus, 7 
Sierrobius uniformis, 9 
Spider Immigrant from Europe, 120 
Stictoponera posteropsis, 77 
Studies on Arizona Ants, 47, 89 
Thaullumetus pullus, 152 
The European Mantis, Mantis re- 
ligiosa (Linne), in Connecticut, 
158 
The Generic Names Blankaartia 
Oudemans, 1911, and Trombicu- 
loides Jacot, 1938 (Acari: Trom- 
biculidae), 85 
The Structure and Relationship of 
Oliarces (Neuroptera), 32 
Theatops phanus, 101 
Tichonia orientalis, 1 
Tichonia paraguayensis, 2 
Trichoptera, 20 
Trombiculoides, 85 
Two New Species of Dictynidae 
(Araneae) from Panama, 149 
Two New Species of Exotic Ants, 77 
Weberacantha octa, 25 
