Odonatological Abstracts

(1349) HIURA, I., 1972. [Problems of Mnais strigata). Kumamoto Konchu-dokokaiho (J. Kumamoto Entomologists) 40: 1-16. (Japanese). – (Osaka Nat. Hist. Mus., Nagai Park, Higashinagai-cho, Higashisumiyoshiku, Osaka, 546, JA). A classification of the complicated forms of the Japanese Mnais is proposed. These are considered to belong to 2 distinct spp., M. strigata and M. nawai. The latter has orange-winged 66 and lightly orange-winged 99, the larvae possess longer lateral gills, with pointed tips. M. strigata, on the other hand, is characterized by several forms of 66 and hyaline-winged 99, with larvae having shorter lateral gills, with rounded tips. It is divided into 6 races. The 66 of 5 of these (Tohoku, Bohsoh, Nankai, Saikai and Chugoku) appear in coloured- and hyaline-winged forms, while the 66 of the Setouchi race are hyaline winged only. The range of the Setouchi race is almost equal to that of M. nawai, and coincides with the area covered in the Pliocene by the huge Ko-setonaikai Lake (or inland sea). (Cf. also OA No. 1298). (1350) HIURA, I., 1972. (Contribution to the knowledge of Mnais strigata in Kyushu], Kumamoto Konchu-dokokaiho 40: 17-24. (Japanese). — (Osaka Nat. Hist. Mus., Nagai Park, Higashinagai-cho, Higashisumiyoshiku, Osaka, 546, JA). The Saikai race of M. strigata is found in the SW parts of Kyushu, Japan, while the Chugoku and the Setouchi races and M. nawai occur in the NE areas of the island. The known distribution is mapped.