. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. Bulletin, So. Calif. Academy of Sciences Vol. 59, Part 2, 1960 NOTES ON THE EARLY STAGES OF TWO PHALAENID MOTHS FROM SOUTHERN CALIFORNIA By John Adams Comstock Orthosia praeses (Grt.) From our indefatigable correspondent, Noel McFarland, we received three clusters of eggs, numbering approximately 175 examples, of the above named moth. They were laid in single layers, each egg touching its neighbors, with no interspaces. The date and time of laying was the night of January 13, 1957, by a gravid
. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. Bulletin, So. Calif. Academy of Sciences Vol. 59, Part 2, 1960 NOTES ON THE EARLY STAGES OF TWO PHALAENID MOTHS FROM SOUTHERN CALIFORNIA By John Adams Comstock Orthosia praeses (Grt.) From our indefatigable correspondent, Noel McFarland, we received three clusters of eggs, numbering approximately 175 examples, of the above named moth. They were laid in single layers, each egg touching its neighbors, with no interspaces. The date and time of laying was the night of January 13, 1957, by a gravid female collected at Beverly Hills, California. McFarland reported that the larva fed well on Sambucus and that it might accept Photinia arbutifolia. Crumb (1956) lists Spiraea douglasi and Holodiscus discolor. He describes the mature larva in detail. Egg: Width mm. Height mm. Color, light pea-green with minute brown dots in the micropylar area. In form it is subcylindrical, the base flat, and top regularly rounded. There are approximately 40 raised vertical ridges run- ning from the base toward the micropyle, with approximately half of these reaching the micropylar margin. These ridges are topped with round raised nodules. The grooves between the ridges are narrow, and apparently are not crossed by horizontal striae. The micropyle is relatively small and shallow. The egg is illustrated on Plate PLATE 23 Egg of Orthosia praeses, lateral aspect, enlarged X 42. Reproduced from drawing by the author. 95. 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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