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Thursday, May 9th, 2024
| Time | Event | ||||||
| 3:02a | [Entomology • 2024] Hercostomus obtusus & H. squamatus • New Species and Records of the Genus Hercostomus Loew (Diptera: Dolichopodidae) from Thailand Mangroves, with Notes on the Hercostomus Fauna of Singapore Mangroves
Abstract The long-legged fly genus Hercostomus Loew, 1857 is reported for the first time from mangrove habitats in Thailand. Two new species, H. obtusus sp. nov. and H. squamatus sp. nov. are described based on external morphology and supported by NGS barcoding. Four described species, namely, H. brevicornis Zhang, Yang & Grootaert, 2008, H. brevidigitalis Zhang, Yang & Grootaert, 2008, H. lanceolatus Zhang, Yang & Grootaert, 2008, and H. plumatus Zhang, Yang & Grootaert, 2008, previously known only from Singapore mangroves, are recorded for the first time from Thailand mangroves. In addition, species distributions are mapped and taxonomic notes are provided. Diptera, taxonomy, NGS barcodes, Southeast Asia
Hercostomus squamatus sp. nov. Etymology. The specific epithet, squamatus refers to the numerous squamiform bristles on the apical border of the cercus. Bionomics. This species was collected from shaded areas of mangrove creeks and back mangroves, which had an abundance of small pebbles, sand, and muddy soils in their vicinity. Distribution. THAILAND: Phang Nga and Satun provinces, SINGAPORE: Pulau Semakau (Semakau Island).
Hercostomus obtusus sp. nov. Etymology. The specific epithet, obtusus refers to the obtuse tip of the first flagellomere. Bionomics. This species was collected from shaded areas of the back mangrove. Distribution. THAILAND: Phang Nga and Satun provinces (Andaman Seacoasts, southern Thailand). SINGAPORE: common in the back mangrove all over the country. Abdullah Samoh and Patrick Grootaert. 2024. New Species and Records of the Genus Hercostomus Loew (Diptera: Dolichopodidae) from Thailand Mangroves, with Notes on the Hercostomus Fauna of Singapore Mangroves. Zootaxa. 5446(2); 179-204. DOI: 10.11646/zootaxa.5446.2.2 Researchgate.net/publication/380208310_New_species_and_records_of_the_genus_Hercostomus_from_Thailand_Singapore_mangroves | ||||||
| 8:31a | [Botany • 2022] Ribes fujisanense (Grossulariaceae) • A New obligate epiphytic Species discovered in Central Japan
Abstract Ribes fujisanense S. Sakag. & Mit. Oishi (Grossulariaceae), an obligate epiphytic gooseberry, is described here for the first time. It is narrowly endemic in the cool-temperate forests of Mt. Fuji and adjacent areas of central Japan. Ribes fujisanense is morphologically most similar to R. ambiguum Maxim., but is distinguished by the reddish apex of the calyx lobes, branchlets armed with prickles, petioles with long glandular trichomes and more deeply lobed leaf blades. Phylogenetic analysis based on genome- wide markers showed that the two species are considerably divergent, even though R. fujisanense fully overlaps the distribution of the wide-ranging R. ambiguum, indicating that they are biologically isolated species. Keywords: epiphyte, Grossulariaceae, Ribes, SNPs, taxonomy    Ribes fujisanense S. Sakag. & Mit. Oishi, sp. nov. Similar to Ribes ambiguum Maxim., but distinguished by multiple characteristics including color of the calyx lobes (pale greenish with apex tinged reddish in R. fujisanense vs. entirely pale greenish in R. ambiguum), branchlets (armed with prickles vs. unarmed), trichomes on abaxial surface of petiole (long glandular vs. short non-glandular or rarely glabrous), and leaf blade (deeply lobed and tender vs. shallowly lobed and robust); phylogenetically independent from R. ambiguum; restricted to cool-temperate cloud forests (1,300–1,750 m a.s.l.) on Mt. Fuji and surrounding areas of central Honshu, Japan.   Shota Sakaguchi, Mitsuru Oishi, Daiki Takahashi, Ayumi Matsuo, Shun K. Hirota, Yoshihisa Suyama and Hiroaki Setoguchi. 2022. Ribes fujisanense (Grossulariaceae): A New obligate epiphytic Species of Gooseberry Discovered in Central Japan. Acta Phytotax. Geobot. 73(1); 49-56. DOI: 10.18942/apg.202109 www.jstage.jst.go.jp/article/apg/73/1/7    | ||||||
| 10:23a | [Paleontology • 2024] Phylogenetic Position of Kinnareemimus khonkaenensis (Dinosauria: Theropoda: Ornithomimosauria) from the Lower Cretaceous of Thailand
Abstract A small-bodied ornithomimosaur, Kinnareemimus khonkaenensis Buffetaut, Suteethorn, and Tong 2009, from the Lower Cretaceous Sao Khua Formation of northeastern Thailand was first reported in 1995, then named in 2009. It is the only report of this group in Southeast Asia and was concluded to be a member of Ornithomimosauria, more derived than Harpymimus and Garudimimus but more basal than Archaeornithomimus. Since then, a few published studies have analyzed the phylogenetic position of Kinnareemimus but failed to find it within the clade Ornithomimosauria. Here, the phylogenetic analyses for assessing the relationships of Kinnareemimus within Ornithomimosauria were performed. The results suggested it might be a basal ornithomimosaur or belongs to the subclade Deinocheiridae. Kinnareemimus shares with deinocheirids the proximally projected cnemial crest and the shape of the fibula in proximal view. Its metatarsal III shows subarctometatarsalian condition with metatarsal III pinched between II and IV but visible in anterior view proximally, which might have evolved independently from other ornithomimids. However, the basal position of Kinnareemimus could also be due to the immaturity and the incomplete nature of this animal. Reptilia, Ornithomimosauria, Southeast Asia, subarctometatarsalian metatarsus, Early Cretaceous Sao Khua Formation, Paleobiogeography   Adun SAMATHI. 2024. Phylogenetic Position of Kinnareemimus khonkaenensis (Dinosauria: Theropoda: Ornithomimosauria) from the Lower Cretaceous of Thailand. Zootaxa. 5448(1); 67-84. DOI: 10.11646/zootaxa.5448.1.4  | ||||||
| 5:53p | [Herpetology • 2024] Herpetoreas davidi • Taxonomic Reassessment of the Herpetoreas xenura (Wall, 1907) (Serpentes: Natricidae) from Myanmar with Description of A New Species
ABSTRACT The review of the taxonomic status of Herpetoreas xenura species complex, based on morphological and molecular data, revealed a new species from Myanmar, which we describe as Herpetoreas davidi sp. nov. from the Rakhine Yoma Elephant Wildlife Sanctuary in Rakhine State. It is suggested to be a sister species to Herpetoreas pealii and Herpetoreas xenura sensu stricto, and can be separated from the latter species by a combination of morphological and scalation characters, and by its pattern. Another population from the Htamanthi Wildlife Sanctuary, Sagaing Region, was previously confused with H. xenura. However, as a closer examination of its morphology, shows it to be closer to Hebius khasiensis, we herein tentatively refer to this population as Hebius khasiensis, pending further molecular data confirming its taxonomic status. Consequently, we propose to temporarily remove Herpetoreas xenura from the fauna of Myanmar. Further studies, especially in the northwestern region of Myanmar, such as near border with India in Chin Hills and Naga Hills, are required. An updated key for the species of Herpetoreas is also provided. Keywords: distribution, Herpetoreas davidi sp. nov., Indo-Burmese region, Naga Hills, Rakhine Hills, taxonomy 
Tan Van Nguyen, Hmar Tlawmte Lalremsanga, Lal Biakzuala and Gernot Vogel. 2024. Taxonomic Reassessment of the Herpetoreas xenura (Wall, 1907) (Squamata: Serpentes: Natricidae) from Myanmar with Description of A New Species. European Journal of Taxonomy. 932(1), 158–203. DOI: 10.5852/ejt.2024.932.2519  |
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