岡山県,島根県の果樹園と醸造所におけるショウジョウバエ

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The collection of Drosophilid flies in grape and peach orchards in Okayama Prefecture, three breweries, two wineries both in Okayama and Shimane Prefectures and one beer factory in Okayama Prefecture, was carried out in order to investigate the Drosophila fauna in August, 1986 and 1987. Four stations were set. A total of 2870 specimens, belonging to four subgenera and 23 species including four unclassified taxa, was collected. Drosophila melanogaster was dominant species in the orchard in 1986 and in two wineries. In 1987,however, D. auraria was the same one, and both numbers of kind of species and individuals collected were more in the bush of peach than in that of grape with regard to the orchard. D. virilis was the dominant one in the beer factory. Both D. simulans and D. albomicans (in the manner of trap) were collected in Okayama Prefecture followed by the last survey. The latter species distributes in and around Okayama, and seems to be breeding in this area. It was noted that there were seven newly recorded taxa in Okayama Prefecture, that is, D. ficusphila, D. virilis, D. nigromaculata, D. simulans-like sp., and D. auraria-like sp. 2,D. daruma-like sp., and D. subauraria-like sp. We advocate the Japanese name "nisenoharakaojiro-shojobae" to D. subauraria. Besides the above taxa, many specimens of the mutant of D. melanogaster showing both whitish antenna (upper half) and darken the wing basis in color. D. hydei was collected for the first time and D. simulans was secondary recorded in Shimane Prefecture. As compared the previous data, 50 species including 11 unclassified taxa belonging to six subgenera and 37 species belonging to six subgenera of the genus Drosophila are listed in Okayama and Shimane prefecture, respectively.
岡山理科大学の論文

岡山県,島根県の果樹園と醸造所におけるショウジョウバエ

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