Browsing by Author "Lutz, Frank Eugene, 1879-1943."
Now showing 1 - 20 of 50
Results Per Page
Sort Options
Item Altitude in Colorado and geographical distribution. Bulletin of the AMNH ; v. 46, article 5.(New York : Published by order of the Trustees, American Museum of Natural History, 1922) Lutz, Frank Eugene, 1879-1943.Item Amphipoda from Florida and the West Indies. American Museum novitates ; no. 598(New York City : The American Museum of Natural History, 1933) Shoemaker, Clarence Raymond, 1874-; Lutz, Frank Eugene, 1879-1943.; Wheeler, William Morton, 1865-1937.; Van Name, Willard Gibbs, 1872-; Mutchler, Andrew Johnson.; Brown, Barnum.; Miner, Roy Waldo, 1875-1955.; Whelpley, P. B.Item An analysis by Movietone of a cricket's chirp (Gryllus assimilis). American Museum novitates ; no. 420(New York City : American Museum of Natural History, 1930) Lutz, Frank Eugene, 1879-1943.; Hicks, W. R.Item Bees from Mesa Verde, Colorado, in the American Museum of Natural History. American Museum novitates ; no. 397(New York City : American Museum of Natural History, 1930) Cockerell, Theodore D. A. (Theodore Dru Alison), 1866-1948.; Lutz, Frank Eugene, 1879-1943.Item Bees of the genus Colletes chiefly from Colorado. Bulletin of the AMNH ; v. 81, article 5.(New York : The American Museum of Natural History, 1943) Timberlake, P. H. (Philip Hunter), 1883-; Lutz, Frank Eugene, 1879-1943.Item Bees of the genus Panurginus obtained by the American Museum Rocky Mountain Expeditions. American Museum novitates ; no. 36(New York City : By order of the Trustees of The American Museum of Natural History, 1922) Cockerell, Theodore D. A. (Theodore Dru Alison), 1866-1948.; Lutz, Frank Eugene, 1879-1943.Item Bees of the genus Perdita from the Western States. American Museum novitates ; no. 33(New York City : By order of the Trustees of The American Museum of Natural History, 1922) Cockerell, Theodore D. A. (Theodore Dru Alison), 1866-1948.; Lutz, Frank Eugene, 1879-1943.Item The "buckwheat problem" and the behavior of the honey-bee. American Museum novitates ; no. 688(New York City : The American Museum of Natural History, 1934) Lutz, Frank Eugene, 1879-1943.Item Description of a new species of Symphylurinus (Insecta, Dicillura) from Central America. American Museum novitates ; no. 920(New York City : The American Museum of Natural History, 1937) Silvestri, Filippo, 1873-1949.; Lutz, Frank Eugene, 1879-1943.Item Descriptions of new parasitic Hymenoptera from British Guiana. Bulletin of the AMNH ; v. 32, article 30.(New York : Published by order of the Trustees, American Museum of Natural History, 1913) Brues, Charles T. (Charles Thomas), 1879-1955.; Richardson, Charles H. (Charles Howard), 1887-; Crampton, Henry Edward, b. 1875.; Lutz, Frank Eugene, 1879-1943.; West Indies Expedition of the American Museum of Natural History (1911)Item Effect of humidity on pupal duration and on pupal mortality of Drosophila ampelophila Loew. Bulletin of the AMNH ; v. 37, article 15.(New York : Published by order of the Trustees, American Museum of Natural History, 1917) Elwyn, Adolph, 1888-1955.; Lutz, Frank Eugene, 1879-1943.; Tower, Ralph W. (Ralph Winfred), 1870-1926."One. Changes in relative humidity have no marked effect on the length of pupal period of Drosophila ampelophila. 2. Changes in relative humidity produce striking changes in the mortality of Drosophila, the mortality increasing with a decrease of humidity. The optimum humidity being 100 per cent. 3. The effects of low humidity on mortality are most marked with very young pupae, whose covering permits a rapid evaporation of body moisture. After a few hours, when integumental changes making evaporation more difficult have set in, the effects of low humidity are correspondingly decreased"--P. 353.Item The epeoline bees of the American Museum Rocky Mountain Expeditions. American Museum novitates ; no. 23(New York City : By order of the Trustees of The American Museum of Natural History, 1921) Cockerell, Theodore D. A. (Theodore Dru Alison), 1866-1948.; Lutz, Frank Eugene, 1879-1943.Item Experiments with "stingless bees" (Trigona cressoni parastigma) concerning their ability to distinguish ultraviolet patterns. American Museum novitates ; no. 641(New York City : The American Museum of Natural History, 1933) Lutz, Frank Eugene, 1879-1943."The social, tropical bee, Trigona cressoni parastigma, could not be induced to come for any of a variety of substances that were offered as food in order to test its ability to form an association between the location of food and some color or color-pattern. However, it was found possible to confuse this bee as to the location of its nest by associating a color or color-pattern with the nest-site and then moving that color or color-pattern elsewhere. When a pattern of alternating segments of black and white was used, the bee distinguished between white tinged with ultraviolet and white not so colored. It also distinguished patterns made up of white with ultraviolet and white without that color. In the training from March 9 to 23 f had marked the site of the nest and one or more e cards had been at various other positions in its vicinity.... The frequent 'tests' probably tended to break down to some extent this training because in them bees going to an f card found that at that time f did not mark the site of the nest but that sometimes e did. Furthermore, these tests presumably included bees that recently emerged and, so, had not been subjected to full training. In spite of these unfavorable factors, a comparison of the observed scores with numbers expected on the basis of pure chance show that in all of the seventeen tests ... except the first, f exceeded expectation. Combining all of the tests, f scored 506 and e scored 124, a ratio of 4.1 to 1, whereas chance would have given a ratio of only 0.8 to 1. Whatever may be this insect's reactions at a greater distance, when alighting it is influenced most by the appearance of a band 4 to 8 mm. wide along the lower half of its entrance hole, this being the place on which it actually alights. The fact that this feral species in its natural environment appreciates and reacts to reflected ultraviolet of sunlight adds to the importance of considering the ultraviolet color of many flowers when discussing the relation between floral color and the behavior of flower-visiting insects"--P. 25.Item Experiments with Drosophila ampelophila concerning natural selection. Bulletin of the AMNH ; v. 34, article 21.(New York : Published by order of the Trustees, American Museum of Natural History, 1915) Lutz, Frank Eugene, 1879-1943.Item Experiments with Orthoptera concerning diurnal rhythm. American Museum novitates ; no. 550(New York City : The American Museum of Natural History, 1932) Lutz, Frank Eugene, 1879-1943."Two species of crickets and a subterranean grasshopper showed very definite diurnal rhythms which were continued in constant darkness, temperature, and hunidity. These rhythms were changed by 'reversed illumination' and then the new rhythms were continued in constant with the following exceptions. The crickets that were subjected to reversed illumination for only a short time showed a tendency to return to the old rhythms after a short time in constant darkness, and the Stenopelmatus individual was inactive during a relatively long period of reversed illumination showed no effect of the reversing when it was subsequently active in constant darkness"--P. 24.Item Geographic average, a suggested method for the study of distribution. American Museum novitates ; no. 5(New York City : By order of the Trustees of The American Museum of Natural History, 1921) Lutz, Frank Eugene, 1879-1943.Item The geographic distribution of Bombidae (Hymenoptera), with notes on certain species of boreal America. Bulletin of the AMNH ; v. 35, article 26.(New York : Published by order of the Trustees, American Museum of Natural History, 1916) Lutz, Frank Eugene, 1879-1943.Item How to collect and preserve insects. (Guide leaflet, no. 39)(New York : American Museum of Natural History, 1920-10) Lutz, Frank Eugene, 1879-1943.4th EditionItem Insect sounds. Bulletin of the AMNH ; v. 50, article 6.(New York : Published by order of the Trustees, American Museum of Natural History, 1924) Lutz, Frank Eugene, 1879-1943.Item Insects and disease : a statement of the more important facts with special reference to everyday experience. (Guide leaflet, no. 48)(New York : American Museum of Natural History, [1918]., 1918-06) Winslow, C.-E. A. (Charles-Edward Amory), 1877-1957.; Lutz, Frank Eugene, 1879-1943.