1991-1993 Collection of 3 handwritten cards/letters by the Japanese lepidopterologist Masahide Yoshida to the French entomologist (Lepidoptera and Carabidae) le comte Hervé de Toelgoët-Tréanna (1911-2009). It includes four colour photographs of Yoshida in company of many other Japanese lepidopterologists of the time, like Y. Wada, Masami Ogata, Sôjï Inouyé, Tahiro Yasuda, Morio Wakabayashi, Yoshitake Yamada, Hiroshi Kuroko, Akito Kawazoé and Suguru Igarashi. Especially noteworthy is the group photograph made at a banquet for the occasion of the edition of the book ‘’Blue butteflies of the Lycaenopsis group’’ by Elliot & Kawazoé, and the doctorate of Igarashi. All nine participants in that photo are identified and described...