INDEX TO SUBJECTS 
All new genera, new species and new names are printed in capital type. 
A Description of the Larva of Thyce 
harfordi Casey, 50 
A New Genus of Ant-mimicking 
Spider Wasps from Australia, 303 
A New Genus of Ponerine Ants 
from West Africa, with Ecological 
Notes, 259 
A New Thrips-Hunting Micro stig- 
mas from Costa Rica, 120 
Acanthophrynus coronatus, 181 
Agenoideus humilis, 243 
Agonum montezumae, 214 
Agonum districtum, 213 
Agonum tolucense, 215 
Ants, 184, 202, 259, 276, 385 
APOMYRMA STYGIA, 264 
Arachnida, 131, 181, 202, 243, 280, 
347 
Araneus cornutus, 243 
Ascalaphidae, 147 
Bees, 184, 190 
Biological Notes on Two Species of 
Sericophorus from Australia, 413 
Blaberidae, 217, 308, 436 
Blattaria, 104, 217, 308, 411 
Caloneurodea, 406 
Chlaenius greensladei, 345 
Chlaenius timgrensis, 344 
Coleoptera, 50, 208, 237, 343 
Copulation in Poanes hobomok , 127 
Descriptions of the Nests of Pseudo- 
chartergus fuscatus and Stelopoly- 
bia testacea, with a Note on a 
Parasite of S. testacea , 54 
Diptera, 45, 361 
Dissochaetus portoricensis, 237 
Dolichoctis pedestris, 208 
Duration of Copulation in Poanes 
hobomok, 127 
Epilampra, 436 
Erigone antegona, 131 
Erigone aptuna, 131 
Erigone autumnalis, 137 
Erigone bereta, 136 
Erigone digena, 138 
Erigone dipona, 140 
Erigone tepena, 143 
Eriophora edax, 296 
Eriophora fuliginea, 290 
Eriophora nephiloides , 298 
Eriophora ravilla, 286 
Erratum, 208 
Fossil Insects from New Mexico, 400 
Fungus Gnats, 361 
Grammonota dalunda, 351 
Grammonota innota, 352 
Grammonota lutacola, 350 
Grammonota secata, 356 
Grammonata tabuna, 347 
Grammonota teresta, 358 
Hoplitis anthocopoides, a European 
Mason Bee Established in New 
York State, 190 
Hymenoptera, 45, 54, 120, 184, 190, 
202, 243, 303, 385, 413 
Iridomimus spilotus, 306 
IRIDOMIMUS VIOLACEU3, 305 
Larva of Thyce harfordi, 50 
Lethe appalachia, 86 
Lethe eurydice, 72 
Lepidoptera, 70, 127, 430 
Leptomorphus bifasciatus, 361 
Leptomorphus subcaeruleus, 361 
MADERA MAMAYI, 403 
Microdictya hamyi, 34 
Microdictya lacroixi, 34 
Microdictya ‘vaillanti, 32 
Microdictya villeneuvei, 35 
Microstigmus thripoctenus, 120 
Mimicry of Hymenopteran Antennae 
by Syrphidae, 45 
NEADELPHUS PROTAE, 154 
Nests of Pseudochartergus and Ste- 
lopolybia, 54 
Neuroptera of Baltic Amber, 147 
New Species of Erigone from Pana- 
ma and West Indies, 131 
New Species of Grammonota from 
Panama and Costa Rica, 347 
Nymphidae, 147 
Odonata, 252 
Oonops amacus, 497 
Oonops anoxus, 502 
Oonops itascus, 499 
Oonops ORNATUS, 491 
Oonops pallidulus , 496 
517 
