caa a22 4500 397546696 CHVBK 20180308164740.0 cr unu---uuuuu 161202e19961101xx s 000 0 eng 10.1093/aesa/89.6.883 doi (NATIONALLICENCE)oxford-10.1093/aesa/89.6.883 Kingsley Kenneth J. SWCA, Incorporated, Environmental Consultants, 343 South Scott Avenue, Tucson, AZ 85701. Behavior of the Delhi Sands Flower-Loving Fly (Diptera: Mydidae), a Little-Known Endangered Species [Elektronische Daten] [Kenneth J. Kingsley] The Delhi Sands flower-loving fly, Rhaphiomidas terminatus abdominalis Cazier, is the only dipteran listed as an endangered species by the U.S. Fish and Wildlife Service. Fewer than 500 individuals are believed to exist. Needs of this species are not well known, and understanding the behavior of this species may be a key element in designing a successful conservation and recovery plan. Behavior of adult flies was observed throughout 2 annual periods of activity (August-September) at a 3.7-ha preserve in southern California. Microhabitats present on the preserve included a range from dense shrubs (vegetation cover >75%) to open sand (vegetation cover <1%). Males and females differed greatly from each other in activity rate, specific behaviors, and use of habitat features. Males were very active, exhibited searching and pursuit flight, and were most often found in open areas. Females were more passive, spending most of the time perched on shrubs in areas with cover of >25%. While perched, females extended and vibrated their abdomens, which is postulated to be pheromone broadcast or semaphoring behavior. Flies appeared to be highly selective of microhabitats used for various behaviors, using only a small portion of the preserve, and males and females used different microhabitats. Preservation of a range of microhabitats is probably necessary to conserve the species, and habitat creation should include a range of microhabitats and plant species. © 1996 Entomological Society of America Behavior nationallicence Rhaphiomidas terminatus abdominalis nationallicence insect behavior nationallicence endangered species nationallicence preserve design nationallicence Annals of the Entomological Society of America Oxford University Press 89/6(1996-11-01), 883-891 0013-8746 89:6<883 1996 89 aesa https://doi.org/10.1093/aesa/89.6.883 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/aesa/89.6.883 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Kingsley Kenneth J. SWCA, Incorporated, Environmental Consultants, 343 South Scott Avenue, Tucson, AZ 85701 NATIONALLICENCE 773 0- Annals of the Entomological Society of America Oxford University Press 89/6(1996-11-01), 883-891 0013-8746 89:6<883 1996 89 aesa Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford