A new species of the genus Polycope is reported from Mukaishima Island, the Inland Sea of Japan. The species belongs to the loscobanosi-group (BONADUCE, 1964), and is characterized by the morphology of the first antenna in both sexes and the second antenna and copulatory organ in male.

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A new subfamily Guineaxonopsinae, a new genus Guineaxonopsis and two new species, Stygolimnesia baderi and Guineaxonopsis cooki, were described and illustrated from Papua New Guinea. The genus Stygolimnesia is found at present only from Japan and New Guinea.

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Ceratotenuiala echigoensis gen. n. et sp. n. belonging to the family Tenuialidae is described from Mt. Kurohime in Niigata Prefecture, Central Japan. Ceratotenuiala bears peculiar bifurcate lamellae, by which the new genus is easily distinguishable from the known genera of the family Tenuialidae.

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Calopteryx japonica larva is described and figured for the first time. As compared with C. virgo larva, it differs not only in body size but in length of legs and especially in that of the caudal lamellae relative to the body length. As compared to C. atrata larva, it differs apparently in shape of the head, the labium, and the median caudal lamella, and in relative length of the antennal pedicel to the first segment of flagellum and that of the median lamella to the lateral lamellae.

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A new Macromia species taken from Ranong, Peninsular Thailand is described. Superficially this insect resembles to M. moorei, but this is believed to the westwoodi-gronp if seen from the venational characters.

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A new species of the genus Ducetia is described as new under the name of D. unzenensis from Kyushu, Japan. This species is closely related to D. chinensis, but is different from it in the shape of male cerci and subgenital plate, the length of female hind wings, and in the posterior branches of R vein of fore wings of both the sexes.

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To the Japanese fauna are added two species of Pegohylemyia, of which one is described as new to science under the name P. kenji. Short comment and additional data on two other species of the genus are given.

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The cestode fauna of the bats in the Hokuriku District was investigated from the standpoint of host-parasite relationship. It is inspected how bats in this district have interrelations with conspecific populations in various places of Japan. Specimens of Rhinolophus ferrumequinum nippon collected in six caves of the Noto Peninsula and Oguchi-mura, Ishikawa Prefecture and in the western part of Toyama Prefecture were infected with Hymenolepis rashomonensis peculiar to this bat, but specimens of R. cornutus cornutus in these caves were not infected with cestodes. R. ferrumequinum nippon in three places (Atago-iwaya, Nikoi-do and Ueyama-tunnel) of the Hida area of Gifu Prefecture was infected with H. rashomonesis; some individuals were infected with Vampirolepis iwatensis and H. rashomonensis. R. c. cornutus from Atago-iwaya was infected with V. isensis peculiar to this bat. From the standpoint of bats' cestode fauna the following distributional connections among bats are presumed: R. ferrumequinum, nippon living in Ishikawa Prefecture, the western part of Toyama Prefecture and the Hida area of Gifu Prefecture have intercommunications with those in various places of Japan, some individuals of R. ferrumequinum nippon living in a partjrf the Hida area (Ueyamatunnel and Nikoi-do) with those in the districts along the northern part of the Sea of Japan north of Toyama Prefecture, and R. c. cornutus from Atago-iwaya with those in various places of Japan, though this bat is sporadically distributed in the Noto Peninsula and the western part of Toyama Prefecture.

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