1923] 
Index 
231 
INDEX TO SUBJECTS 
All new genera, new species and new names are printed in Small Capital 
Letters. 
Ahlatus mirnus, 112. 
Acanthoponera, key to species, 190. 
Acanthoponera, aicrea, 187. 
Acanthoponera hrouni, 183. 
Acanthoponera carinifrons, 186, 
Acanthoponera dentinodis, 186. 
Acanthoponera dolo, 187. 
Acanthoponera goeldii, 188. 
Acanthoponera hilaris, 180. 
Acanthoponera imhellis, 179. 
Acanthoponera inermis, 186. 
Acanthoponera kirki, 185. 
Acanthoponera minor ^ 189. 
Acanthoponera mucronata, 189. 
Acanthoponera leae, 181, 
Acanthoponera panamensis, 187. 
Acanthoponera scabra, 181. 
Acanthoponera schwarzi, 188. 
Acanthoponera schwebeli, 188. 
Acanthoponera wagneri, 190. 
Acontistoptera hrasiliensis, 21. 
Acrocera hubhardi, 47. 
Acroricnus jnncens, 226. 
Acrocera litiirata, 46, 49. 
Acrocera stansburyi, 49. 
Agaricus citrinus, 4. 
Agathis australis, 185. 
Ageneotettix deorum, 225. 
Allygus gutturosus, 156. 
Allygus modestus, 156, 
Allygus niixtus, 155, 156. 
Amanita citiina, 5. 
Amanita phalloides, 5. 
Amber insects, 227. 
Ameletus, 170. 
Anacanthoponera, 176. 
Ancistrocerus birenimacidatiis, 226. 
Andrenidse, 166. 
Anisoptera, 128. 
Anthidiini, 164. 
Anthophoridse, 162, 
Anthophoroidea, 162. 
Ants from Bolivia, 13. 
Ants from Mississippi, 82. 
Ants of the genera Acanthoponera 
and Myopias, 175. 
Apis mellifera, 160. 
Apopappus, 126. 
Apygidial scopulipedes, 162, 
Aradid from New England, 120. 
Aradus quadrilineatus, 120. 
Asilida?, 102, 207. 
Baetis 129, 172. 
Baltic amber, insects from, 59, 
Bembix hamata, 5. 
Bembix hamata subsp. lucida, 7. 
Bombidse, 162. 
Bombus, see also Bremus. 
Bombus americanorum , 161. 
Bombus lapidarius, 193. 
Bombus ruderatus, 149. 
Bombinse, 160. 
Book reviews, 35, 133. 
Bradyponera, 176. 
Bremus fervidus, 198. 
Bremus impatiens, 150, 151, 
Bremus muscorum, 151. 
Bremus lapidarius, 199. 
Bremus latreillellus , 198. 
Bremus ruderatus, 147. 
Bremus, see also Bombus. 
Bremus lerrestris, 195. 
Bremus vagans, 148. 
Bumblebees, egg-eating habit of, 193. 
Bumblebees, humming of, 227. 
Bumblebee trumpeters, 146. 
Calliopsis andreniformis, 160. 
Calliphora erythrocephala, 26. 
