163 research outputs found
A new genus and species of myrmecophilous brentid beetle (Coleoptera : Brentidae) inhabiting the myrmecophytic epiphytes in the Bornean rainforest canopy
No full textMaruyama, Munetoshi, Bartolozzi, Luca, Inui, Yoko, Tanaka, Hiroshi O., Hyodo, Fujio, Shimizu-Kaya, Usun, Takematsu, Yoko, Hishi, Takuo, Itioka, Takao (2014): A new genus and species of myrmecophilous brentid beetle (Coleoptera: Brentidae) inhabiting the myrmecophytic epiphytes in the Bornean rainforest canopy. Zootaxa 3786 (1): 73-78, DOI: http://dx.doi.org/10.11646/zootaxa.3786.1.
Figure 1 in Within-nest abundance of a tropical cockroach Pseudoanaplectinia yumotoi associated with Crematogaster ants inhabiting epiphytic fern domatia in a Bornean dipterocarp forest
No full textFigure 1. Response of Crematogaster difformis workers to cockroaches of two species and conspecific and allospecific ant workers.Published as part of Inui, Yoko, Tanaka, Hiroshi O., Hyodo, Fujio & Itioka, Takao, 2009, Within-nest abundance of a tropical cockroach Pseudoanaplectinia yumotoi associated with Crematogaster ants inhabiting epiphytic fern domatia in a Bornean dipterocarp forest, pp. 1139-1145 in Journal of Natural History 43 (19-20) on page 1141, DOI: 10.1080/00222930902807734, http://zenodo.org/record/521632
Figure 1 in Potential host range of myrmecophilous Arhopala butterflies (Lepidoptera: Lycaenidae) feeding on Macaranga myrmecophytes
No full textFigure 1. Mean (± SD) forewing length (mm) of male (left) and female (right) adults of Arhopala amphimuta reared from the second-instar larval stage in the laboratory on apical leaves of four Macaranga species: M. winkleri (win), M. trachyphylla (tra), M. beccariana (bec) and M. rufescens (ruf). The numbers of butterflies per Macaranga species are shown in parentheses below the plant name.Published as part of Shimizu-kaya, Usun, Okubo, Tadahiro, Inui, Yoko & Itioka, Takao, 2013, Potential host range of myrmecophilous Arhopala butterflies (Lepidoptera: Lycaenidae) feeding on Macaranga myrmecophytes, pp. 2707-2717 in Journal of Natural History 47 (43-44) on page 2713, DOI: 10.1080/00222933.2013.791943, http://zenodo.org/record/519795
Pycnotarsobrentus inuiae Maruyama & Bartolozzi & Inui & Tanaka & Hyodo & Shimizu-Kaya & Takematsu & Hishi & Itioka 2014, sp. nov.
No full text<i>Pycnotarsobrentus inuiae</i> Maruyama & Bartolozzi, sp. nov. <p> <b>Type material.</b> Holotype, ♂ (DFS), Lambir Hills National Park, Sarawak, E. Malaysia, 22 IX 2011, Itioka et al. leg. Paratypes, 3♂ (KUM), same data, but 28 IX 2011; 1♂ (MZUF, collection number 17085), 1♀ (DFS), same data but 17 IX 2005 (ex T. Itioka collection). All the specimens were collected from nests of <i>Crematogaster difformis</i> in domatia of the canopy ferns.</p> <p> <b>Description. Male.</b> Body (Figs. 1, 2) dark brown, with legs slightly lighter.</p> <p>Head (Fig. 3) short, eyes totally occupying its lateral sides until basal constriction; vertex connected to mesorostral plate on same plane; surface of vertex with sparse yellow minute setae; metarostrum about as long as head, laterally concave; lateral apophysis preceded by minute tooth; mesorostrum large, flat, laterally rounded; prorostrum short, almost parallel sided; lateral margins of mesorostrum and prorostrum moderately punctuate; underside of meta- and mesorostrum moderately covered with setiferous punctures; antennal segments cylindrical, rather compressed, with rugose surface; segments II-X of antennae all wider than long; segment XI twice as long as wide.</p> <p>Pronotum (Fig. 1) 1.1× as long as wide, with similar width at anterior and posterior margins, widest at middle; finely punctured on disc, strongly rugose at sides, with some scattered erect golden setae.</p> <p>Elytra (Fig. 1) 2.4× as long as pronotum; all striae and interstriae present; humeral calli slightly prominent; interstriae 3 and 5 slightly elevated; surface with sparse suberect small setae, denser at sides.</p> <p>Legs (Figs. 1, 2) with femora weakly dilated from base to apex, laterally compressed basally, then weakly swollen; tibiae (Fig. 4) with inner margin almost straight, serrate; outer margin gently curved; surface smooth but along outer margin with granulate setiferous punctures; tarsi short, segment I slightly longer than II, segment III about twice as long as II, deeply hollowed at apex, last tarsal segment very short, its basal part deeply inside hollow of segment III, surface of segments I-III rugose; underside of segment III with two longitudinal hairy pads.</p> <p> <b>Female.</b> Body (Figs. 5, 6) more matte, densely micro-reticulate overall. Prorostrum cylindrical, densely and coarsely punctured, punctation denser but smaller than on mesorostrum. Pronotum more coarsely punctured, except along anterior margin. Elytra more densely punctured.</p> <p>Body length: 8.5–6.2 mm (including rostrum).</p> <p> <b>Differential diagnosis.</b> No species of Eremoxenini with similar morphological modifications are known from the Oriental region and the new taxon is easily distinguishable from all other Asian Eremoxenini by the generic diagnosis.</p> <p> <b>Etymology.</b> Dedicated to Dr. Yoko Inui, one of the collectors, for her invaluable contribution to the knowledge of tree canopy ant communities.</p> <p> <b>Bionomics</b>. The beetles were found exclusively inside the nests of <i>C. difformis</i> in the domatia of the epiphytic ferns (Figs. 8, 9). They were observed to walk slowly when the nests were excavated (Fig. 10, 11), and the ants did not pay any attention to them. Ecological studies on the communities of the myrmecophiles in the nests of <i>C. difformis</i> are in progress by the Japanese authors.</p>Published as part of <i>Maruyama, Munetoshi, Bartolozzi, Luca, Inui, Yoko, Tanaka, Hiroshi O., Hyodo, Fujio, Shimizu-Kaya, Usun, Takematsu, Yoko, Hishi, Takuo & Itioka, Takao, 2014, A new genus and species of myrmecophilous brentid beetle (Coleoptera: Brentidae) inhabiting the myrmecophytic epiphytes in the Bornean rainforest canopy, pp. 73-78 in Zootaxa 3786 (1)</i> on pages 74-77, DOI: 10.11646/zootaxa.3786.1.5, <a href="http://zenodo.org/record/4913383">http://zenodo.org/record/4913383</a>
Pycnotarsobrentus undetermined
No full textPycnotarsobrentus sp. Specimen examined. 1 ♀, near Keningau, Sabah, Malaysia, IV 2005 (KUM). Comments. This female specimen apparently belongs to Pycnotarsobrentus, and can be distinguished from P. inuiae by the presence of a pair of furrows near the apices of the elytra. This is an undescribed species, but description will be delayed until a male specimen becomes available. The specimen is thought to have been collected at a light trap by a local insect collector.Published as part of Maruyama, Munetoshi, Bartolozzi, Luca, Inui, Yoko, Tanaka, Hiroshi O., Hyodo, Fujio, Shimizu-Kaya, Usun, Takematsu, Yoko, Hishi, Takuo & Itioka, Takao, 2014, A new genus and species of myrmecophilous brentid beetle (Coleoptera: Brentidae) inhabiting the myrmecophytic epiphytes in the Bornean rainforest canopy, pp. 73-78 in Zootaxa 3786 (1) on page 77, DOI: 10.11646/zootaxa.3786.1.5, http://zenodo.org/record/491338
Pycnotarsobrentus Maruyama & Bartolozzi & Inui & Tanaka & Hyodo & Shimizu-Kaya & Takematsu & Hishi & Itioka 2014, gen. nov.
No full textPycnotarsobrentus Maruyama & Bartolozzi, gen. nov. Type species. Pycnotarsobrentus inuiae Maruyama & Bartolozzi, sp. nov., by present designation. Description. Male. Body (Figs. 1, 2) rather short, stout. Head (Fig. 3) short, twice as wide as long, slightly convex above; eyes large, strongly prominent and hemispherical, occupying almost entire side of head, their posterior margins contiguous with basal constriction; antennae (Fig. 3) 11-segmented, short, thick, cylindrical, slightly widened apically, almost symmetrical, apical segment rounded distally, not pointed; rostrum longer than wide, not separated from head by any depression, tubercle or carina; metarostrum short, margined laterally, concave at sides; mesorostrum roundly convex at sides, slightly depressed dorsally, without medial carina; prorostrum much narrower than mesorostrum, slightly depressed at sides, margined laterally, concave at sides, truncate at apex; mandibles short; rostral apophyses slightly expanded laterad; underside of pro- and mesorostrum flattened, dilated apicad. Pronotum (Fig. 1) longer than wide, strongly punctured at sides, slightly on disc, with trace of median sulcus basally. Elytra (Fig. 1) slightly wider than pronotum, parallel-sided in basal half, narrowed toward apex, slightly flattened and expanded at apex, striae narrow, interstriae wider; underside of apical expansions with trichomes along border. Legs (Figs. 1, 2) robust, femora laterally compressed from base to middle; tibiae (Fig. 4) laterally compressed with weak swelling in middle, serrate on inner margin; hind and mid tibiae with inner margin tooth-shaped at apex; minute tibial spurs 1-2-2; tarsi short, thick, compressed, parallel-sided; tarsal segment III with pair of longitudinal adhesive patches of pubescence; tarsal segment IV shorter than III. Prosternum linear between coxae. Metasternum with medial longitudinal groove. Sternites III-IV with large medial circular depression; sternite VII slightly emarginate at apex. Female. Body (Figs. 5–6) similar to male. Antennae (Fig. 7) slightly longer than in male; mesorostrum slightly shorter, less expanded laterad; prorostrum short, cylindrical, slightly narrowed towards apex. Mid and hind tibiae (Figs. 5–6) without inner apical tooth-like expansion. Metaventrite slightly depressed around middle. Sternites III- IV completely fused, without medial depression. Differential diagnosis. This genus is close to the African genus Pericordus Kolbe, 1883, in the head and rostrum lacking depression or carinae, short antennae, laterally compressed femora and tibiae, and rather thick and short tarsi, but clearly distinguished from it by the antennal segments being cylindrical, rugose and rather compressed, with the apical segment rounded at apex, by the mesorostrum being not convex, by the tarsi being shorter, with parallel-sided segments and extremely short tarsal segment IV. Etymology. The generic name is derived from Greek words meaning “stout tarsi-bearing brentid” for one its important character states: the thick, short tarsi. Gender masculine.Published as part of Maruyama, Munetoshi, Bartolozzi, Luca, Inui, Yoko, Tanaka, Hiroshi O., Hyodo, Fujio, Shimizu-Kaya, Usun, Takematsu, Yoko, Hishi, Takuo & Itioka, Takao, 2014, A new genus and species of myrmecophilous brentid beetle (Coleoptera: Brentidae) inhabiting the myrmecophytic epiphytes in the Bornean rainforest canopy, pp. 73-78 in Zootaxa 3786 (1) on page 74, DOI: 10.11646/zootaxa.3786.1.5, http://zenodo.org/record/491338
Theoretical and numerical studies on quantum hydrodynamics in superfluid ^4He : Approaches based on the two-fluid model & one-fluid extended model
No full textヤナギ ノ ハ ノ キハツセイ セイブン ガ ショクショクセイ コンチュウ グンシュウ ニ アタエル エイキョウ
No full text京都大学0048新制・論文博士博士(理学)乙第11286号論理博第1429号新制||理||1382(附属図書館)UT51-2003-N935(主査)教授 大串 隆之, 教授 堀 道雄, 教授 山村 則男学位規則第4条第2項該当Doctor of ScienceKyoto UniversityDA
Why Has the Border Effect in the Japanese Market Declined?: The Role of Business Networks in East Asia
No full textThis paper analyzes the causes of the decline in Japanfs border effect by estimating gravity equations for Japanfs international and interregional trade in four machinery industries (electrical, general, precision, and transportation machinery). In the estimation, we explicitly take account of firmsf networks. We find that ownership relations usually enhance trade between two regions (countries), and also find that we can explain 35% of the decline in Japanfs border effect from 1980 to 1995 in the electrical machinery industry by the increase of international networks.Gravity Model, Border Effect, Networks
Why Has the Border Effect in the Japanese Market Declined? The Role of Business Networks in East Asia
No full textThis paper analyzes the causes of the decline in Japan's border effect by estimating gravity equations for Japan's international and interregional trade in four machinery industries (electrical, general, precision, and transportation machinery). In the estimation, we explicitly take account of firms' networks. We find that ownership relations usually enhance trade between two regions (countries), and also find that we can explain 35% of the decline in Japan's border effect from 1980 to 1995 in the electrical machinery industry by the increase of international networks.
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