. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. BULLETIN OF THE Southern California Academy of Sciences LOS ANGELES, CALIFORNIA. Vol. XXIII January—February, 1924 Parti CONTENTS Page Notes on Aphidopi-iagous Syrpidae of Southern California -- 3 R. E. CAMPBELL, and W. M. DAVIDSON Description of a New Fossil Species of a Clam OF THE Genus Crassatellites .- 11 I. S. OLDROYD An Albino Form of Zauschneria .--. 12 G. L. MOXLEY Studies in Pacific Coast Lepidoptera.—The Re- discovery of a Lost Species ---. 13 DR. JOHN A. COMSTOCK A New Species
. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. BULLETIN OF THE Southern California Academy of Sciences LOS ANGELES, CALIFORNIA. Vol. XXIII January—February, 1924 Parti CONTENTS Page Notes on Aphidopi-iagous Syrpidae of Southern California -- 3 R. E. CAMPBELL, and W. M. DAVIDSON Description of a New Fossil Species of a Clam OF THE Genus Crassatellites .- 11 I. S. OLDROYD An Albino Form of Zauschneria .--. 12 G. L. MOXLEY Studies in Pacific Coast Lepidoptera.—The Re- discovery of a Lost Species ---. 13 DR. JOHN A. COMSTOCK A New Species of Eriogonum 17 DR. A. DAVIDSON Butterflies of California 18 DR. JOHN A. COMSTOCK The Penstemons of Southern California 21 P. A. MUNZ and I. M. JOHNSTON. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Southern California Academy of Sciences. Los Angeles, Calif. : The Academy
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