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1) In Matile 1986 work about Keroplatus
http://www.online...arctic.pdf

K. reaumurii reaumurii:
fusion radiomédiane 1.7-2.7 fois plus lonque que le pétiole de la fourchue
(rm fusion longer than M stem)
In this picture rm/Mstem =1.6
(in other male genitalia checked reaumurii: 1.85, 1.41, 2.17, 1.36, .... so IS ALWAYS > 1)

K. testaceus
fusion radiomédiane un peu plus courte que le pétiole de la fourchue
(rm fusion shorter or equal than M stem)
In this picture rate rm/Mstem =0.4

Image from K. testaceus from Jostein Kjaerandsen at
http://sciaroidea...s-Wing.jpg