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Article type: Cover
2006 Volume 57 Issue 3 Pages
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Article type: Appendix
2006 Volume 57 Issue 3 Pages
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Article type: Appendix
2006 Volume 57 Issue 3 Pages
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Article type: Appendix
2006 Volume 57 Issue 3 Pages
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Article type: Appendix
2006 Volume 57 Issue 3 Pages
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Article type: Appendix
2006 Volume 57 Issue 3 Pages
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Hitomi MIZUKAWA, Toshiya HIROWATARI, Satoshi HASHIMOTO
Article type: Article
2006 Volume 57 Issue 3 Pages
149-155
Published: June 30, 2006
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Eriocrania komaii sp. nov. is described and figured from Mt Izumi-Katsuragi, Osaka Prefecture, Japan. The larva of this species is suspected to feed on the leaves of Sorbus japonica (Decne.) Hedlund (Rosaceae).
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Neung-ho AHN, Toshiya HIROWATARI, Nagao HIRANO, Hiroshi KUROKO
Article type: Article
2006 Volume 57 Issue 3 Pages
156-162
Published: June 30, 2006
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A lyonetiid moth Microthauma lespedezella Seksjaeva, 1990, a leaf miner on Lespedeza bicolor (Leguminosae), is newly recorded from Japan, Hokkaido and Nagano Prefecture. Description of the female genitalia, photographs of the adult, mine, cocoon and pupa are provided for the first time. Lespedeza cyrtobotrya is recorded as a new hostplant of the species.
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Masanao NAKAMURA
Article type: Article
2006 Volume 57 Issue 3 Pages
163-176
Published: June 30, 2006
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Pupa, of 13 genera of Zygaenidae and two genera of Epipyropidae from Japan are described and classified.
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Akira IMAMURA, Noriaki MAKINO, Mayumi HATAKEYAMA, Osamu YAMAGUCHI
Article type: Article
2006 Volume 57 Issue 3 Pages
177-186
Published: June 30, 2006
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Noctuid larvae boring bamboo shoots were surveyed in southwestern Japan. More than 100 last instar larvae were collected from a total of 9282 shoots of 24 wild and cultivated bamboo species. Adults reared from them were identified as five Amphipyrinae species, viz. Bambusiphila vulgaris, Atrachea miyakensis contaminata, Anapamea cuneatoides, Kumasia kumaso and Sapporia repetita. The larva and host plant of A. cuneatoides are recorded for the first time.
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Masashi HIRATA, Takashi MIYAGAWA
Article type: Article
2006 Volume 57 Issue 3 Pages
187-201
Published: June 30, 2006
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Atrophaneura nox (Swainson, 1823) was described from Java, Indonesia, and is known to be widely distributed from the Malay Peninsula to Borneo, Sumatra, Java and their associated islands. Because of the wide geographical variations of wing pattern, this species has so far been divided into eleven subspecies. In this paper, we revise the taxonomical status of all the described subspecies and classified this species into fourteen subspecies including two new ones from the Banyak Islands and Singkep Island. After close re-examination, Atrophaneura tungensis Zin et Leow, 1982 from C. Sumatra turns out to be a subspecies of A. nox.
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Yasuaki NISHINAKA, Minoru ISHII
Article type: Article
2006 Volume 57 Issue 3 Pages
202-216
Published: June 30, 2006
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We conducted transect counts of butterflies in 1999 and 2001 in a coppice on Mt Mikusa, northern Osaka Prefecture, central Japan, to elucidate the effects of experimental mowing on species diversity and assemblage structure of butterflies. At the study site, the forest floor, which had been almost covered with dwarf bamboo in 1999, was mown after the autumn of 2000 to produce alternating 25-m intervals of mown and unmown strips of undergrowth on an experimental basis. Totals of 975 and 775 individuals belonging to 41 and 46 butterfly species were observed respectively before (1999) and after (2001) completion of the strip mowing. Three species of multivoltine satyrids, Lethe diana, L. sicelis and Neope goschkevitschii, dependent on tree sap and dwarf bamboo for their adult and larval food resources, respectively, were dominant in both survey years, although their densities were greatly decreased in 2001. In contrast, annual counts of nectar-dependent and forest herb feeding butterflies, including two species of univoltine fritillaries, Argynnis paphia and Damora sagana, increased in 2001. Thus the stripe mowing of undergrowth enhanced the species diversity of butterflies in the study site coppice by suppressing densities of dominant dwarf bamboo feeders and benefiting forest herb feeders.
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Azuma ABE, Mutsuo KUSHIBIKI, Kouji KUDOH
Article type: Article
2006 Volume 57 Issue 3 Pages
217-228
Published: June 30, 2006
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Male germ-line chromosomes were examined in fourteen species of the Hesperiidae. Chromosome number was observed from n, 9 to n, 31 according to species. In Lepidoptera, modal number is n, 31, and the chromosome number seems to have evolved towards decrease mainly through fusion. Based on the chromosome number, this family is divided into six groups, viz. n, 31, 30; n, 29, 28; n, 24; n, 16, 15; n, 10, 9; n, 50, among which the n, 10, 9 group is newly found in this study. This grouping is nearly coincident with the modern higher classification of this family.
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Ken-ichi HASHIMOTO, Kazuhiko HACHIYA
Article type: Article
2006 Volume 57 Issue 3 Pages
229-236
Published: June 30, 2006
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The photoperiodic induction of diapause in a newly established population of Pieris brassicae (L.) in Hokkaido, Japan was investigated. The critical photoperiod for pupal diapause was about 13hr50min at 20℃. In the fields of Sapporo City in Hokkaido, diapausing pupae were obtained late in September. The present results obtained in the laboratory correlated well with the photoperiodic conditions of the diapause incidence observed in the field late in September. A well synchronized emergence from diapausing pupae was induced by chilling at 5℃ or 10℃ for 160 days. The conditions were comparable to the period of cold season in the habitat of this population.
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Kazuo WATANABE, Kazuhiko HIRANO
Article type: Article
2006 Volume 57 Issue 3 Pages
237-254
Published: June 30, 2006
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We marked 29 individuals (27♂ 2♀) of Luehdorfia japonica (Leech) in 2002 at the summit of Mt Egesan, and analysed their subsequent flight behaviors. The life span at the peak was estimated as 15-17 days. We describe the diurnal changes of the flight tracks and discuss their implications for mating and population convergence. The flight pattern develops in time. After making a short random "wandering flight" in the morning, a flyway of "round-patrolling" with a few preferential staying spots develops. On certain occasions, they manifest a "perching occupation" at a specific staying spot. During the round-patrolling, "spiraling flight" is evoked when encountering another male individual of the same species. And, if the encounter is a virgin female, they copulate. The flight activities of each individual at the peak seem to be individually specific, and generally cover a wider area with aging. During the survey, evidence of peak-to-peak round trips (at least 680 m flight within four hours) was obtained. These behaviors of male individuals produce a wide-spread coverage of the peak area by a scattered distribution of female-seeking males. This undoubtedly is an effective strategy for lowering the probability of females remaining virgin in the meta-population.
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Masahiko NISHIKAI
Article type: Article
2006 Volume 57 Issue 3 Pages
255-264
Published: June 30, 2006
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Altitude of habit at and its seasonal change in three Pieris butterflies, P. rapae, P. melete and P. napi were investigated. The results might suggest the possible existence of two distinct ecologic subsets, a lowland type and a montane type, especially in melete. In addition, interspecific competition for habitat could exist between the three species.
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Akito Y. KAWAHARA
Article type: Article
2006 Volume 57 Issue 3 Pages
265-277
Published: June 30, 2006
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The biology of the New-World snout butterfly genus Libytheana is reviewed. The distribution, habitat, behavior, life history, larval host plant, migration, dispersal, adult diet, predators, parasitoids, and microbiological data for each species are presented. Libytheana carinenta is wide-spread, with a distribution ranging from southern Canada to Argentina. It has multiple annual generations and can be found in various habitats, including deserts, grasslands, and forests. Libytheana carinenta regularly lands on the ground, frequently visits flowers, disperses in very large numbers, and has territorial males. Nothing is known about the immature stages of the three insular species.
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Article type: Appendix
2006 Volume 57 Issue 3 Pages
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Article type: Appendix
2006 Volume 57 Issue 3 Pages
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Article type: Appendix
2006 Volume 57 Issue 3 Pages
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Article type: Cover
2006 Volume 57 Issue 3 Pages
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Article type: Cover
2006 Volume 57 Issue 3 Pages
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