-
The California mayflies of the genus Rhithrogena (Ephemeroptera)
Vol 33, Page 1
-
Two new species of the genus Recurvaria Haw. (Lepidoptera: Gelechiidae)
Vol 33, Page 9
-
An improved method for collecting Brachy-cistidine females (Hymenoptera: Tiphiidae)
Vol 33, Page 13
-
New species and records of Xeromegachile and Derotropis (Hymenoptera: Megachilidae)
Vol 33, Page 19
-
A new species of Callidium from juniper (Coleoptera: Cerambycidae)
Vol 33, Page 33
-
A note on the nesting habits of Pompilus (Ammosphex) occidentalis (Dreisbach) (Hymenoptera: Pompilidae)
Vol 33, Page 39
-
Notes on the breeding seasons of some Illinois Carabid beetles (Coleoptera)
Vol 33, Page 53
-
A Limnocoris for the United States (Hemiptera: Naucoridae)
Vol 33, Page 71
-
Arrenuri from the island of Yap. (Acarina: Arrenuridae)
Vol 33, Page 75
-
A new genus and species of Tetranychidae (Acarina)
Vol 33, Page 87
-
Fluorescent differentiation of the internal organs and tissues of insects
Vol 33, Page 91
-
Remarks about Cicindelids, with descriptions of two new subspecies (Coleoptera)
Vol 33, Page 99
-
Distributional records for some species of Pleocoma (Coleoptera, Scarabaeidae)
Vol 33, Page 102
-
A new entedontine Chalcid-fly from seed capsules of eucalyptus in California (Hymenoptera: Eulophidae)
Vol 33, Page 109
-
A revision of the bee genus Crocisa in the Philippines (Hymenoptera, Apidae)
Vol 33, Page 111
-
The species of Cricotopus midges living in the blue-green alga Nostoc in California (Diptera: Tendipedidae)
Vol 33, Page 121
-
New Curculionidae (Coleoptera) from British Columbia. II
Vol 33, Page 127
-
Additions to the distribution of North American Nemestrinidae; with notes on venational variation (Diptera)
Vol 33, Page 133
-
Notes and descriptions of new California Bombyliidae (Diptera)
Vol 33, Page 141
-
A new genus of Euplectini from California (Coleoptera: Pselaphidae)
Vol 33, Page 149
-
Biological notes on a new Chalcid-fly from seed-like eucalyptus galls in California
Vol 33, Page 153
-
A synopsis of the California deathwatch beetles of the genus Emobius Thomson, with descriptions of two new species which attack pine cones (Coleoptera: Anobiidae)
Vol 33, Page 157
-
Two mites of the genus Cheylostigmaeus, including a new species from Point Barrow, Alaska. (Acarina: Stigmaeidae)
Vol 33, Page 163
-
A key to the North American members of the genus Anthocoris Fallen (Hemiptera: Anthocoridae)
Vol 33, Page 171
-
Three new species of Thyanta Stal (Heteroptera: Pentatomidae)
Vol 33, Page 175
-
Three new California spider wasps (Hymenoptera, Pompilidae)
Vol 33, Page 181
-
New species and subspecies of Tenebrionidae (Coleoptera)
Vol 33, Page 187
-
New Bombyliid flies from Chiapas, Mexico (Diptera)
Vol 33, Page 200
-
A new species of Typhlodromus from California (Phyto-seiidae: Acarina)
Vol 33, Page 203