ケブカハチモドキハナアブとヒサマツハチモドキハナアブ(双翅目,ハナアブ科)の成虫の行動
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概要
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Most species of cerioidine flies belonging to Syrphidae are rarely found, and their adult stage lives have been clarified only in a few of nearly 200 described species. Three species, Monoceromyia pleuralis (Coquillett), Primocerioides petri (Herve-Bazin) and Ceriana japonica (Shiraki) can be found in the Japanese Archipelago. We conducted field research on the adult behaviors of P. petri and C. japonica between 1999 and 2008 in Kagawa Prefecture, located in northeastern part of Shikoku Island, Japan. Eight P. petri adults (four males, four females) were individually found on the stem surface near a sap-exuding bark hole of Zelkova serrata between early April and late April of 2005, 2007 and 2008. All of the males kept pausing on the stem surface, and all of the females with their abdominal tips bent to the ventral side were walking and sometimes stopped to oviposit. Two C. japonica adults (one male, one female) were captured immediately after they had landed on the flower of the same male tree of Rhus silvestris, individually in late May, 1999. Both of the two female C. japonica adults adopted the same posture as the P. petri described above, walking and sometimes stopping to oviposit on the stem surface near the bark hole of Z. serrata in mid-May, 2007. This paper addresses possible factors affecting the emergence periods, the selection of oviposition plants and the flower visitation of the two cerioidine species with special reference to interspecific competition.
- 香川大学農学部の論文
- 2009-02-25
香川大学農学部 | 論文
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