This map summarizes the data already used. It includes a total of 5815 data for 39 species.

Dataset 4.IV.2016 included (total 6045 data): BDFGM (Belgium, P. Rasmont & E. Haubruge) 3962 data; BWARS (UK, S.P.M. Roberts) 860 data; CSCF (Switzerland, Y. Gonseth) 741 data; NMOK (Germany, through GBIF) 74 data; J. Straka (Czech Republic) 42 data; NMR (Netherlands) 41 data; WID (Belgium J. D'Haeseler) 38 data; David Baldock (UK) 27 data; SSIC (Sweden, B. Cederberg & M. Franzen) 22 data; other 109 data.

Main recorders have been: F. Amiet (138 specimens), K.M. Guichard (136), H. Teunissen (75), K. Warncke (64), M. Schwarz (62), P. Rasmont (54), H. Priesner (53), M. Klein (53), T. Steck-Hofmann (52), A. Nadig senior (51), G. Grandi (48), Baldini (47), M.A. Lieftinck (43), J. Pérez (41), etc...

Litterature data: It includes mainly Lieftinck (1969, 1977, 1980).

P. Rasmont