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ヘイケボタル調査
| 幼虫 | 成虫 | | 年 | 初見(数) | 最多(数) | 終見(数) | 初見(数) | 最多(数) | 終見(数) | | 1998 | 6/27(15) | 8/8(100) | 8/8(100) | 6/3(50) | 7/7(107) | 8/4(2) | | 1999 | 5/6(32) | 5/6(32) | 6/10(3) | 5/25(1) | 6/10(100) | 7/3(6) | | 2000 | 5/6(7) | 5/14(31) | 8/6(1) | 5/25(1) | 7/12(48) | 9/3(1) | | 2001 | 4/29(4) | 6/24 (142) | 12/13(8) | 6/2(1) | 7/13(47) | 10/24(1) | | 2002 | 3/31(12) | 5/16 (130) | 11/25(2) | 5/22(1) | 6/15(45) | 9/5(1) | | 2003 | 4/12(2) | 11/6(57) | 12/13(1) | 6/11(1) | 7/17(30) | 8/30(1) | | 2004 | 3/23(3) | 5/25(55),10/2(79) | 12/7(3) | 6/5(1) | 7/18(58) | 9/21(1) | | 2005 | 3/23(3) | 5/7(62) | 10/3(3) | 6/1(1) | 7/25(31) | 10/6(1) | | 2006 | 4/22(1) | 6/1(23) | 10/8(1) | 6/14(2) | 7/26(11) | 8/18(1) | | 2007 | 5/27(7) | 5/27(7) | 7/23(5) | 6/12(1) | 7/24(7) | 8/15(1) | | 2008 | 5/11(1) | 10/6(10) | 11/7(1) | 6/8(2) | 7/8(10) | 8/14(1) | | 2009 | 4/21(7) | 8/11(88) | 8/15(1) | 6/5(2) | 7/11(12) | 9/7(1) | | 2010 | 5/26(1) | 6/24(11) | 8/9(1) | 6/28(2) | 7/10(40) | 8/18(1) | | 2011 | 5/22(2) | 6/21(7) | 10/16(1) | 6/21(4) | 7/14(32),7/17(32) | 8/26(3) | | 2012 | 4/22(1) | 7/7(19) | 7/25(1) | 6/11(1) | 8/1(18) | 9/7(2) | | 2013 | 5/15(1) | 6/28(2) | 7/16(1) | 6/11(2) | 7/21(10) | 8/21(1) | | 2014 | 5/22(4) | 5/22(4) | 6/12(2) | 5/13(2) | 7/21(3) | 8/5(1) | | 2015 | 5/21(4) | 6/6(14) | 7/13(1) | 6/27(3) | 7/14(17) | 9/16(1) | | 2016 | 5/18(1) | 5/18(1) | 6/18(1) | 6/4(1) | 7/17(15) | 8/17(1) | | 2017 | 6/10(1) | 7/14(3) | 8/8(2) | 6/10(1) | 6/28(8) | 8/19(2) | | 2018 | 5/15(2) | 5/15(2) | 6/14(1) | 6/4(1) | 6/22(13) | 8/2(1) | | 2019 | 6/12(1) | 7/13(2) | 7/13(2) | 6/8(1) | 6/16(14) | 8/21(1) | | 2020 | 5/17(1) | 5/19(3) | 5/31(1) | 6/11(1) | 7/2(7) | 8/25(1) | | 2021 | 5/19(2) | 5/22(2),7/12(2) | 8/1(1) | 5/26(1) | 6/27(20),6/30(20) | 8/11(2) |
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