Korean Journal of Ecology and Environment (생태와환경)

The Korean Society of Limnology (한국수생태학회)
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Two Co-inhabiting Burrowing Mayflies, Ephemera orientalis and E. sachalinensis, in Korean Streams (Ephewmeroptera: Ephemeridae)

한국 하천의 동일 서식처에 서식하는 2종의 굴파는 하루살이인 동양하루살이와 사할린하루살이 (하루살이목: 하루살이과)

  • 황정미 (서울여자대학교 생물학과) ;
  • 이성진 (서울여자대학교 생물학과) ;
  • 배연재 (서울여자대학교 생물학과)
  • Published : 2003.12.31
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Abstract

We provided diagnostic characters of the adult and larval stages of two co-inhabiting species of ephemerid burrowing mayflies, Ephemera orientalis and E. sachalinensis (new record to South Korea) (Ephemeroptera: Ephemeridae), in Korean streams. E. sachalinensis (mean${\pm}$sd body length male adult 18.44${\pm}$0.70 mm, female adult 21.46${\pm}$0.45 mm) is larger in body length than E. orientalis (male adult 13.92${\pm}$0.04 mm, female adult 15.27 ${\pm}$ 0.48 mm), and can be distinguished by male genitalia, forewing markings, and stripes on the abdominal terga Vl-lX. The mature larvae of E. sachalinensis differ from those of E. orientalis in having a deeper and more divergent head frontal process. Their body size distributions and additional ecolegical findings are discussed.

이 논문에서는 한국 하천의 동일한 서식처에 서식하는 2종의 굴파는 하루살이 (하루살이목, 하루살이과)인 동양하루살이와 사할린하루살이(남한 미기록종)에 대하여 성충 및 유충의 차이점을 밝혔다. 사할린하루살이는 성충에 있어서 몸의 크기 (평균체장${\pm}$표준편차 수컷성충 18.44${\pm}$0.70mm, 암컷성충 21.46${\pm}$0.46 mm)가 동양하루살이 (수컷성충 13.92${\pm}$0.04 mm, 암컷성충 15.27${\pm}$0.48 mm)에 비하여 크고, 수컷 생식기, 앞날개 무늬, 6-9배마디 등판의 줄무늬에 있어서 차이가 난다. 성숙 유충에 있어서 사할린하루살이는 동양하루살이에 비하여 다소 깊게 패이고 밖으로 퍼진 형태의 전두부 돌출기를 가진다. 두 종의 체장 분포와 부수적인 생태적 특징을 기록하였다.

Keywords

References

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