-
Additions to the known herpetological fauna of Costa Rica with comments on other species. No. III
Vol 39, Iss 1, Page 3
-
Notes on Costa Rican Centrolenidae with descriptions of new forms
Vol 39, Iss 2, Page 41
-
Observations on the Ethology of Neotropical Anthophorine Bees (Hymenoptera: Apoidea)
Vol 39, Iss 3, Page 69
-
The Flora and Ecology of the Chautauqua Hills in Kansas
Vol 39, Iss 4, Page 97
-
A Subgeneric Revision of the Genus Osmia in the Western Hemisphere (Hymenoptera: Megachilidae)
Vol 39, Iss 5, Page 211
-
Notes on Oviposition and the Hatching of Eggs of Aedes and Psorophora Mosquitoes (Diptera: Culicidae)
Vol 39, Iss 6, Page 263
-
A Revision of the Genus Osmia, Subgenus Centrosmia (Hymenoptera: Megachilidae)
Vol 39, Iss 7, Page 275
-
The Comparative Morphology, Phylogeny and Higher Classification of the Butterflies (Lepidoptera: Papilionoidea)
Vol 39, Iss 8, Page 305
-
The Tenagogonus-Limnometra complex of the Gerridae
Vol 39, Iss 9, Page 371
-
An anatomical study of a Neotropical tree frog, Centrolene prosoblepon (Salientia: Centrolenidae)
Vol 39, Iss 10, Page 459
-
Observations on the Behavior of Brasilian Halictid Bees, III
Vol 39, Iss 11, Page 473
-
Catalogue of the Types in the Snow Entomological Museum. Part II (Mallophaga)
Vol 39, Iss 12, Page 507
-
Mitotic Activity in Allium After Treatment With Chromosome-Breaking Chemicals
Vol 39, Iss 13, Page 519