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Saturday, March 30th, 2019
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| 6:00a | [Cnidaria • 2019] Benthic Hydroids (Hydrozoa) from the Weddell Sea (Antarctica)
Abstract Hydrozoans are a conspicuous component of Antarctic benthic communitites. Recent taxonomic effort has led to a substantial increase in knowledge on the diversity of benthic hydroids from some areas of the Southern Ocean, including the Weddell Sea, the largest sea in the Antarctic region. However, the study of many hydrozoan taxa are still pending, and the diversity in this huge region is expected to be higher than currently known. In order to contribute to the knowledge of taxonomy, ecology and distribution of these cnidarians, a study of unpublished material collected by several German Antarctic expeditions aboard the RV Polarstern in the eastern sector of the Weddell Sea has been conducted. A total of 77 species belonging to 22 families and 28 genera of benthic hydroids have been inventoried, constituting the most prolific collection hitherto analyzed. Most species (81%) belong to Leptothecata, but the observed share of Anthoathecata (19%) is higher than in previous Antarctic hydrozoan studies. Symplectoscyphidae was the most speciose family with 16 representatives (22%), followed by Haleciidae with 10 (14%) and Staurothecidae with 8 (11%). The number of species known in the area was increased with 27 new records, including several species rarely documented. As a result, the Weddell Sea becomes the second Antarctic region in terms of hydrozoan diversity, with 89 species known to date. Novel data on the use of substrate, reproductive phenology, and bathymetric range are provided for the inventoried species. Keywords: Coelenterata, Biodiversity, Checklist, Cnidome, Hydrozoan, New Records, Southern Ocean
Joan J. Soto Àngel and Álvaro L. Peña Cantero. 2019. Benthic Hydroids (Cnidaria, Hydrozoa) from the Weddell Sea (Antarctica). Zootaxa. 4570(1); 1–78. DOI: 10.11646/zootaxa.4570.1.1 | ||||||||
| 6:12a | [Botany • 2019] Echeveria xochipalensis (Crassulaceae) • A New Species from Guerrero, Mexico
Abstract Echeveria xochipalensis, from the state of Guerrero, Mexico, is described as a new species to science. It is related to species of ser. Gibbiflorae, particularly to both E. fulgens varieties, from which it is distinguished by its green to lilac-gray spatulate leaves, although they commonly are coppery tinged; the leaves are rigid and with entire margin (not crenate), the margin is yellow-hyaline; bracts oblanceolate with rigid consistency; corolla pink at base and orange at the apex and whitish filaments, ovaries and nectary scales. Keywords: Echeveria, Gibbiflorae, succulents, white leaf scars, Xochipala  Echeveria xochipalensis, Reyes, de la Cruz-López & Vergara-Silva, sp. nov. Jerónimo Reyes Santiago, Luis E. de la Cruz-López and Francisco Vergara-Silva. 2019. Echeveria xochipalensis (Crassulaceae), A New Species from Guerrero, Mexico. Phytotaxa. 399(1); 14–24. DOI: 10.11646/phytotaxa.399.1.2 | ||||||||
| 6:23a | [Botany • 2018] Asplenium serratifolium (Aspleniaceae) • A New Fern Species from Central Vietnam Based on Morphological and Molecular Evidence
Abstract Asplenium serratifolium (Aspleniaceae), a new fern species from central Vietnam, is described and illustrated. The new species is characterized by plants 10–18 cm tall, laminae pinnatipartite, lobe margins entire or with shallow teeth, and veins simple or forked. Molecular phylogenetic analysis based on five plastid markers (atpB, rbcL, rps4, rps4-trnS, and trnL-F) indicate that the new species is closely related to A. ensiforme.
Asplenium serratifolium Li Bing Zhang & K.W. Xu, sp. nov. Etymology.— Based on the Latin prefix, serrati-, serrate, and the Latin suffix, -folium, leaf, referring to the saw-toothed laminae of the new species.
Ke-Wang Xu, Liang Zhang, Ngan Thi Lu, and Li-Bing Zhang. 2018. Asplenium serratifolium (Aspleniaceae), A New Fern Species from Central Vietnam Based on Morphological and Molecular Evidence. American Fern Journal. 108(3); 65-75. DOI: 10.1640/0002-8444-108.3.65 | ||||||||
| 6:28a | [Botany • 2019] Sorbus lushanensis (Rosaceae) • A New Species from China
Abstract Sorbus lushanensis Xin Chen & Jing Qiu, sp. n. (Rosaceae), a new simple-leaved species belonging to Sorbus subg. Aria sect. Alnifoliae, is described from Anhui and Jiangxi provinces in China. Illustrations, photographs of wild plants and a distribution map are presented. The new species is morphologically similar to S. folgneri, but can be distinguished easily by its abaxially greenish-grey tomentose leaves, scale-like stipules and glabrous styles. Keywords: Sorbus, new species, taxonomy, China
Sorbus lushanensis Xin Chen & Jing Qiu, sp. n. Diagnosis: Sorbus lushanensis is morphologically most similar to S. folgneri (C. K. Schneid.) Rehd., but differs by its leaf blade abaxially greenish-grey tomentose, stipules smaller, pedicels longer, petals larger and styles glabrous.
  Etymology: The name “lushanensis” refers to the type locality, Lushan Mountain, Jiangxi Province, China. Vernacular name: 庐山花楸 (lu shan hua qiu). Jing Qiu, Yang Zhao, Qi Qi and Xin Chen. 2019. Sorbus lushanensis, A New Species of Rosaceae from China. PhytoKeys. 119: 97-105. DOI: 10.3897/phytokeys.119.32148  | ||||||||
| 6:43a | [Entomology • 2019] Revision of the Genus Neorthrius Gerstmeier & Eberle, 2011 (Coleoptera, Cleridae, Clerinae)
Abstract The genus Neorthrius Gerstmeier & Eberle, 2011 is taxonomically revised to include sixty-one species. The following thirty-one species are described as new: Neorthrius aduncus n. sp., Neorthrius aurantiacus n. sp., Neorthrius bipunctatus n. sp., Neorthrius bonasus n. sp., Neorthrius brunnorbis n. sp., Neorthrius buteocoloratus n. sp., Neorthrius cechovskyi n. sp., Neorthrius centromaculatus n. sp., Neorthrius chiangmaii n. sp., Neorthrius cornutus n. sp., Neorthrius crassopunctatus n. sp., Neorthrius ebenus n. sp., Neorthrius elegantulus n. sp., Neorthrius fortecruris n. sp., Neorthrius fulvus n. sp., Neorthrius fuscomaculosus n. sp., Neorthrius guttatus n. sp., Neorthrius longulus n. sp., Neorthrius majae n. sp., Neorthrius mariannae n. sp., Neorthrius molestus n. sp., Neorthrius schnitzeli n. sp., Neorthrius serratus n. sp., Neorthrius sexmaculatus n. sp., Neorthrius sigmoideus n. sp., Neorthrius tenuistriatus n. sp., Neorthrius tulipae n. sp., Neorthrius unicolor n. sp., Neorthrius uniformis n. sp., Neorthrius volsella n. sp. and Neorthrius zebrinus n. sp.. The following taxa, described as varietal forms, are raised to the rank of species and transferred from Orthrius Gorham, 1876: Orthrius striatopunctatus var. bimaculatus Schenkling, 1901 and Orthrius striatopunctatus var. brunneus n. syn. = Neorthrius bimaculatus (Schenkling, 1901) n. comb., n. stat.; Orthrius tarsalis var. obscurus Schenkling, 1906 = Neorthrius obscurus (Schenkling, 1906) n. comb., n. stat.; Orthrius posticalis var. nigricollis Corporaal 1926a: 180 = Neorthrius nigricollis (Corporaal, 1926), n. stat., n. comb. The following new synonymies are proposed: Orthrius deboyssyi Pic, 1951 n. syn. is synonymized with Neorthrius crassipes (Chapin, 1928) n. comb. Orthrius nigromaculatus Pic, 1951 n. syn. is synonymized with Neorthrius bimaculatus (Schenkling, 1901) n. comb. Orthrius rufitarsis Pic, 1932 n. syn., n. comb. is synonymized with Neorthrius obscurus (Schenkling, 1906). The following species are transferred to Neorthrius from Orthrius: Neorthrius angusticollis (Schenkling, 1902), n. comb., Neorthrius bengalus (Westwood, 1852) n. comb., Neorthrius bicrucis (Chapin, 1924) n. comb., Neorthrius brachialis (Gorham, 1893) n. comb., Neorthrius carinifrons (Schenkling, 1900) n. comb., Neorthrius crassipes (Chapin, 1928) n. comb., Neorthrius feae (Gorham, 1892) n. comb., Neorthrius grandjeani (Pic, 1932) n. comb.,in Neorthrius haemorrhoidalis (Schenkling, 1906) n. comb., Neorthrius innotatus (Pic, 1925) n. comb., Neorthrius madurensis (Gorham, 1895) n. comb., Neorthrius massiliensis (Pic, 1951) n. comb., Neorthrius octopunctatus (Schenkling, 1906) n. comb., Neorthrius pallidus (Chapin, 1924) n. comb., Neorthrius posticalis (Westwood, 1852) n. comb., Neorthrius pygidialis (Corporaal, 1949) n. comb., Neorthrius sexplagiatus (Schenkling, 1908) ) n. comb., Neorthrius sinensis (Gorham, 1876) n. comb., Neorthrius subfasciatus (Westwood, 1849) n. comb., Neorthrius subscalaris (Pic, 1954) n. comb., Neorthrius subsimilis (White, 1849) n. comb., Neorthrius subunicolor (Pic, 1935) n. comb., Neorthrius sulcatus (Pic, 1926) n. comb., Neorthrius sumatranus (Schenkling, 1899) n. comb., Neorthrius tarsalis (Gorham, 1892) n. comb. A key to species, color photographs of the habitus, the genitalia, the terminal abdominal segments and distribution maps are provided. Keywords: Coleoptera, Cleridae, Clerinae  Neorthrius haemorrhoidalis (Schenkling, 1906) Roland Gerstmeier. 2019. Revision of the Genus Neorthrius Gerstmeier & Eberle, 2011 (Coleoptera, Cleridae, Clerinae). Zootaxa. 4569(1); 1-127. DOI: 10.11646/zootaxa.4569.1.1 |
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