Comparison of fossil and extant species with extremely lengthened male abdominal segments A6 to A8.

1*The abdomen of the specimen is disarticulated between the 5th and 6 th segments. For length of A1 to A5, it is measured to the ending of the 5th segment. “ca.” denotes “approximately”.
2*The 5th and 6 th abdominal segments are not clearly marked in Fig. 23 of [26] It is assumed that the 6 th segment starts at the point of sudden narrowing of abdomen, “ca.” denotes “approximately”.
3*W. Java, eastern slope of Mt. Gedeh, Tjibeureum (ncar Tjibodas), 1700 m, June 1932, L. J. TOXOPEUS,
4*Tjibodas, 1700 m, no. 24, 1923, KARNY.
5*E. JACOBSON, Goenoeng Gedeh, Java, March 1911 (printed) Leptopanorpa longicauda WEELE (PETERSEN'S handwriting) “Fig. Catal SELYS” (printed), in coll. ESBEN PETERSEN.
6*W. Java, northwestern slope of Mt. Gedeh, 800 m, Tapos, 1932–1934, all the year round, L. G. E. KALSHOVEN and native coll., smallest specimen.
7*W. Java, northwestern slope of Mt. Gedeh, 800 m, Tapos, 1932–1934, all the year round, L. G. E. KALSHOVEN and native coll., largest specimen.
8*Djampang Koelon, Mt. Malang, 600 m, May 1934, M. E. WALSH.
9*W. Java, eastern slope of Mt. Gedeh, Tjibodas, 14–1500 m, Aug. 1921, 1923, H. H. KARNY, July 28 and Dec. 25, 1930, Aug. 9, 1931, and Jan. 2, 1936, M. A. LIEFTINCK, Sept. 8, 1931, T. VAN BENTHEM JUTTING, June 26, Dec. 28, 1933, L. J. TOXOPEUS, and May 22–23, 1935, J. VAN DER VECHT; W. Java, western slope of Mt. Goentoer, Kamodjang, 1450 m, April 21, 1930, M. A. LIEFTINCK, and May 1935, H.OVERBECK; smallest specimen.
10*W. Java, eastern slope of Mt. Gedeh, Tjibodas, 14–1500 m, Aug. 1921, 1923, H. H. KARNY, July 28 and Dec. 25, 1930, Aug. 9, 1931, and Jan. 2, 1936 M. A. LIEFTINCK, Sept. 8, 1931, T. VAN BENTHEM JUTTING, June 26, Dec. 28, 1933, L. J. TOXOPEUS, and May 22–23, 1935, J. VAN DER VECHT; W. Java, southern slope of Mt. Tangkoeban Prahoe, 1500 m, Sept. 10, 1929, Dec. 7, 1933, Jan. 4, 1934, F. C. DRESCHER; largest specimen.
11*Central Java, southern slope of Mt. Slamat, Batoerraden, 950 m, Oct. 21, 1933, M. A. LIEFTINCK. The data is the average value of the reported length range of the specimens.
12*Length of 6th segment (A6) of each specimen is estimated by using the proportion between A7 and A6 as shown in Plate 7 and Plate 8 of [34].