scholarly journals A Taxonomical Study of the Japanese Spider Hitherto Misidentified with Argiope keyserlingi(KARSCH, 1878) or A.aetherea(WALCKENAER, 1841).

1994 ◽  
Vol 43 (1) ◽  
pp. 33-36 ◽  
Author(s):  
Akio TANIKAWA
Keyword(s):  
Argiope Keyserlingi ◽  
Taxonomical Study

New Taxonomical Study on Higher Fungi of Korea

2012 ◽  
Vol 10 (3_4) ◽  
pp. 229-253
Author(s):  
Keuk-Soo BANG ◽  
Duck-Hyun CHO
Keyword(s):  
Taxonomical Study

Trichome micromorphology in Teucrium (Lamiaceae) species growing in Croatia

Biologia ◽  
2007 ◽  
Vol 62 (2) ◽  
Author(s):  
Renata Jurišić Grubešić ◽  
Sanda Vladimir-Knežević ◽  
Dario Kremer ◽  
Zdenka Kalodera ◽  
Jadranka Vuković
Keyword(s):  
Stems And Leaves ◽  
Taxonomical Study

AbstractMicromorphological investigation of the types, dimensions and distribution of characteristic trichomes in leaves and stems in Teucrium L. species (T. arduini L., T. chamaedrys L., T. flavum L., T. montanum L., T. polium L., and T. scordium L. subsp. scordioides Schreb.) distributed in Croatia was carried out as part of the taxonomical study of the genus Teucrium. Secretory types of hairs, peltate and capitate hairs were observed on the epidermis of stems and leaves of all investigated species. Non-secretory, acicular hairs were almost completely lacking on stems of T. scordium subsp. scordioides. Flagelliform hairs were not found in T. flavum and T. polium. Cladose hairs were present only in T. polium. The largest micromorphological variability was established between wild and cultivated samples of T. arduini and T. scordium subsp. scordioides, while cultivated and wild specimens of T. polium were almost identical. Differences were primarily observed in trichome dimensions and much less in micromorphological features.

Taxonomical study of Japanese Aulodrilus Bretscher (Annelida, Clitellata, Tubificinae) with descriptions of two new species

Zootaxa ◽  
2021 ◽  
Vol 4952 (1) ◽  
pp. 1-32
Author(s):  
AKIFUMI OHTAKA
Keyword(s):  
New Species ◽  
Du Bois ◽  
Two New Species ◽  
New Material ◽  
Taxonomical Study

Seven species of the genus Aulodrilus (Annelida, Clitellata, Tubificinae) are studied, based on new material from Japan. Aulodrilus dentosus sp. nov. is characterized as having tubular atrium, forked or bifid distal ends of dorsal crotchets, but no genital chaetae, and A. aestivus sp. nov. is characterized as having crescent-shaped atrium, median male bursa, and bifid chaetae in the dorsal bundles. Five other congeners are redescribed: A. limnobius Bretscher, A. pluriseta (Piguet), A. pigueti Kowalewski, A. japonicus Yamaguchi, and A. americanus Brinkhurst & Cook. Comparison of taxonomic characters among the 14 species recognized in the genus to date shows that three species differ from other congeners in several features: A. paucichaeta Brinkhurst & Barbour, A. adetus (du Bois-Reymond Marcus), and A. apeniatus Cui & Wang. They are provisionally maintained in the genus. 

scholarly journals The taxonomical study of Aedes vexans var. nipponii

1955 ◽  
Vol 6 (1) ◽  
pp. 32
Author(s):  
M. Kato ◽  
N. Suzuki
Keyword(s):  
Aedes Vexans ◽  
Taxonomical Study

A natural history of web decorations in the St Andrew's Cross spider (Argiope keyserlingi)

2007 ◽  
Vol 55 (1) ◽  
pp. 9 ◽  
Author(s):  
Dinesh Rao ◽  
Ken Cheng ◽  
Marie E. Herberstein
Keyword(s):  
Natural History ◽  
Sustained Attention ◽  
Spider Webs ◽  
History Data ◽  
Web Spider ◽  
Exact Function ◽  
History Of ◽  
Argiope Keyserlingi ◽  
Orb Web ◽  
The Web

A long-running debate in the spider literature concerns the function of the extra silk decorations in some spider webs. These decorations are appended to the web and constitute a highly visible signal, which is inconsistent with the trend towards web invisibility. Despite the sustained attention of researchers, the exact function of these decorations is yet to be understood. While most studies have focussed on testing particular hypotheses, there has been a dearth of natural history data regarding web decorations in field conditions. In this study we present baseline data regarding the influence of seasonality, microhabitat characteristics and ecology on the presence of web decorations in an Australian orb web spider, Argiope keyserlingi. In particular, we show that there is preference among spiders to build their webs between bushes and to face the south-east, but this preference does not influence decoration building.

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