Species Diversity

Revisiting Paguritta gracilipes (Crustacea : Decapoda : Anomura : Paguridae), with Description of its Coloration in Life

Tomoyuki Komai, Junji Okuno

Article type: Article
2001 Volume 6 Issue 4 Pages 295-307
Published: November 30, 2001
Released on J-STAGE: March 30, 2018

DOIhttps://doi.org/10.12782/specdiv.6.295

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The coral-inhabiting hermit crab Paguritta gracilipes Melin, 1939 has been represented only by the two syntypes and three more recent specimens, all from the Ogasawara Islands. An additional specimen obtained from Hachijo Island in the Izu Islands now allows us to describe more precisely the coloration in life, which is an important diagnostic feature for identifying the species of the genus. The study of one of the two syntypes and other available specimens has revealed morphological inaccuracies in published accounts and made possible the description of the left cheliped for the first time. This species is rediagnosed and illustrated in detail.

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Pleurogonium (Crustacea : Isopoda : Asellota : Paramunnidae) from Hokkaido, Northern Japan, with Descriptions of Two New Species

Michitaka Shimomura, Shunsuke F. Mawatari

Article type: Article
2001 Volume 6 Issue 4 Pages 309-322
Published: November 30, 2001
Released on J-STAGE: March 30, 2018

DOIhttps://doi.org/10.12782/specdiv.6.309

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Three species and one subspecies of Pleurogonium, including two new to science, are reported from Akkeshi, Hokkaido, as the first record of this genus from northern Japan. Pleurogonium bifolium sp. nov. has bilobed coxal plates and posterolaterally projecting pereonites 2-4 as in P. godeevae Kussakin, 1962, but it is distinguished from the latter in having a frontally bilobed head, pereonite 1 with a pair of stout lateral projections, and a pleotelson with its greatest width anteriorly. Pleurogonium hispidum sp. nov. differs from its congeners by the presence of a trilobed frontal margin of the head and a pair of mid-dorsal setae on all ten segments from head to pleotelson. Pleurogonium angustum Kussakin, 1972 and P. inerme orientale Kussakin, 1962 are recorded from Japan for the first time.

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Macrochelid Mites (Arachnida : Acari : Macrochelidae : Glyptholaspis, Macrocheles, Neopodocinum) Associated with Dung Beetles in Bali, Indonesia

Gen Takaku, Sri Hartini

Article type: Article
2001 Volume 6 Issue 4 Pages 323-345
Published: November 30, 2001
Released on J-STAGE: March 30, 2018

DOIhttps://doi.org/10.12782/specdiv.6.323

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Ten species of mite of the family Macrochelidae (genera Glyptholaspis, Macrocheles, and Neopodocinum) are recorded from the body surface of dung beetles from Bali, Indonesia. Of those mites, two species, Macrocheles baliensis sp. nov. and M. monticola sp. nov., are described as new to science. Neopodocinum spinirostris (Berlese, 1910) is redescribed on the basis of adults and immature stages collected from Bali. Seven species, Glyptholaspis fimicola (Sellnick, 1931), Macrocheles hallidayi Walter and Krantz, 1986, M. krantzi Evans and Hyatt, 1963, M. merdarius (Berlese, 1889), M. oigru Walter and Krantz, 1986, Neopodocinum jaspersi (Oudemans, 1900), and N. spinirostris (Berlese, 1910), were recorded from Bali for the first time. Macrocheles arabaesc nom. nov. is proposed as a replacement name for M. scarabae Chinniah and Mohanasundaram, 1995 (preoccupied by M. scarabae Vishnupriya and Mohanasundaram, 1988).

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Two New Species of the Copidognathus tricorneatus Group (Arachnida : Acari : Halacaridae) from the Great Barrier Reef Marine Park

Jurgen C. Otto

Article type: Article
2001 Volume 6 Issue 4 Pages 347-354
Published: November 30, 2001
Released on J-STAGE: March 30, 2018

DOIhttps://doi.org/10.12782/specdiv.6.347

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Two new species of the Copidognathus tricorneatus group are described from reefs of the Great Barrier Reef lagoon in northeastern Australia : C. leptoporus sp. nov. and C. megaloporus sp. nov. A key to Australian species in the C. tricorneatus group is provided.

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A New Species of the Newly Recorded Genus Larsia (Insecta : Diptera : Chironomidae) from Japan

Hiromi Niitsuma

Article type: Article
2001 Volume 6 Issue 4 Pages 355-362
Published: November 30, 2001
Released on J-STAGE: March 30, 2018

DOIhttps://doi.org/10.12782/specdiv.6.355

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Larsia miyagasensis sp. nov. is described on the basis of the male and female adults, pupa, and larva. This is the first report of the genus Larsia from Japan.

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New Taxa of Osminiini (Insecta : Lepidoptera : Sesiidae) from China, with Establishment of a New Subgenus from the Western Palaearctic

Oleg G. Gorbunov, Yutaka Arita

Article type: Article
2001 Volume 6 Issue 4 Pages 363-376
Published: November 30, 2001
Released on J-STAGE: March 30, 2018

DOIhttps://doi.org/10.12782/specdiv.6.363

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A new genus, Sazonia gen. nov. (type species : Sazonia gorodinskii sp. nov.), including two new subgenera, Sazonia subgen. nov. and Miniosa subgen, nov. (type species : Sesia fenusaeformis Herrich-Schaffer, 1852), and a new species, Sazonia (Sazonia) gorodinskii sp. nov. are described and figured from extra-tropical Asia. Probable trends of the origin of all these taxa are discussed.

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