Annual president's address

1 - 4

Eugene Munroe

Hybrids between Papilio xuthus and the P. polyxenes-machaon group

5 - 18

Shigeru Albert Ae

Preliminary redefinition of North American hairstreak genera

19 - 23

J. Benjamin Ziegler

Taxonomic notes on Nearctic Rhopalocera. 1. Hesperioidea

24 - 36

Cyril F. dos Passos

Danaus gilippus in Ohio

36

William M. Gilbert

Chromosomes of Nearctic Rhopalocera. 2. Hesperioidea & Pieridae

37 - 57

Kodo Maeki & Charles L. Remington

A correction on Hesperia pawnee in Michigan

57

M. C. Niesen

Notes on Agathymus in Texas and a new species from Mexico (Megathymidae)

58 - 62

H. A. Freeman

Nymphalis j-album at light in Maryland

62

W. A. Andersen

A method for estimating the wing radius in Lepidoptera

63 - 66

P. H. H. Gray

Preservation of larvae by inflation and heat-drying

67 - 78

H. E. Hammond

Maine butterfly seasons - good or bad?

78 - 80

A. E. Brower

South American Congress of Zoology

81 - 82

S. L. de la Torre & Y. Callejas

Bird and Ehrlich Collections given to American Museum

82

F. H. Rindge

Recent literature on Lepidoptera

83 - 88

A study of first instar larvae of the Saturniidae

89 - 111

Roger W. Pease, Jr

Data on Decodes, A new North American cnephasiid genus, with new species

112 - 126

N. S. Obraztsov & J. A. Powell

Chromosomes of North American Rhopalocera. Part 3

127 - 147

Kodo Maeki & Charles L. Remington

Descriptions of two new Chlosyne from Mexico

148 - 154

David L. Bauer

Notes on Siamese twins of Parthenos

155 - 156

Julian N. Jumalon

Anteos clorinde nivifera in Colorado

156

F. M. Brown

A striking melanic male of Papilio glaucus

157 - 158

James A. Ebner

A record of Boloria selene in Oregon

158

R. Albright

Containers for rearing larvae, constructed quickly and easily

159 - 160

Joseph Muller

Recent literature on Lepidoptera

161 - 168

Harmonization of concepts of higher classification of Papilionidae

169 - 175

Eugene Munroe & Paul R. Ehrlich

A new entomological serial

175

P. F. Bellinger

A new larval foodplant for Erynnis zarucco from Louisiana

176

Roy O. Kendall

A new melanic form of Catocala connubialis from New Jersey

177 - 178

Joseph Muller

Chromosomes of North American Rhopalocera. Part 4

179 - 201

Kodo Maeki & Charles L. Remington

Book Review: Ehrlich & Ehrlich, How to Know the Butterflies

201 - 202

C. L. Remington

Butterfly hunting in the mountains of central Japan

203 - 207

Kaiya Kubo

Recent literature on Lepidoptera

208

Distribution, habits, and life history of Euptychia mitchellii

209 - 226

W. S. McAlpine, S. P. Hubbell & T. E. Pliske

Techniques for capture-recapture studies of Lepidoptera populations

227 - 229

Paul R. Ehrlich & Susan E. Davidson

Habitat of Boloria titania in Ontario

230

C. J. Durden

A new pine tip moth from the Gulf of Mexico region (Olethreutidae)

231 - 236

William E. Miller

Butterfly collecting in New Mexico

237 - 238

C. V. Covell, Jr.

Erora laeta in New Hampshire

239 - 240

R. S. Smith

Catocala on fir logs

240

Richard Guppy

Obituary of Walter Roepke

241 - 242

A. Diakonoff

Lycaenopsis pseudargiolus caught in a light trap

242

A. L. Throne

Book Review: Shirozu, Butterflies of Formosa

243

C. F. dos Passos

Recent literature on Lepidoptera

244 - 253

Indices to Volume 14

254 - 256