. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. Bulletin, So. Calif. Academy of Sciences Vol. 54, Part 1, 1955 A NOTE ON SEVERAL SPECIES OF AQUATIC HEMIPTERA FROM SANTA CATALINA ISLAND, CALIFORNIA Robert D. Lee, Raymond E. Ryckman, Christian P. Christianson Department of Entomology Sehool of Tropical and Preventive Medicine Loma Linda, California Very little collecting of aquatic Hemiptera has been done on Santa Catalina Island, one of the channel islands located 30 miles off the coast of California, in Los Angeles County; this relatively l
. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. Bulletin, So. Calif. Academy of Sciences Vol. 54, Part 1, 1955 A NOTE ON SEVERAL SPECIES OF AQUATIC HEMIPTERA FROM SANTA CATALINA ISLAND, CALIFORNIA Robert D. Lee, Raymond E. Ryckman, Christian P. Christianson Department of Entomology Sehool of Tropical and Preventive Medicine Loma Linda, California Very little collecting of aquatic Hemiptera has been done on Santa Catalina Island, one of the channel islands located 30 miles off the coast of California, in Los Angeles County; this relatively low, hilly island offers a number of types of habitats suitable to various kinds of hydrophilic insects. While on the island the au- thors had the opportunity of examining several spring-fed streams, stock ponds, fresh water seepages, and salt water pools. Numerous specimens of aquatic Hemiptera were taken from these habitats. Three specimens of Notonecta unifasdata unifasciata were taken dead from a pool in Little Harbor on June 8, 1954. The pool, evidently occasioned by high tide, was separated from the Pacific Ocean by a low strip of sand. The temperature of the water at noon was 80r F.; the pH was 6. It is quite likely that the insects fell into the salt water and died because of its salinity. Plate 9 illustrates the small body of water from which the insects. PLATE 9 From this pool, occasioned by high tide of the Pacific Ocean, three speci- mens of Notonecta unifasciata unifasciata were taken on Santa Cata- lina Island. 20. 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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