scholarly journals First record of the genus Leonardiella in China, with the description of the Leonardiella pappi sp. nov. from Hong Kong (Acari: Mesostigmata: Trachyuropodidae)

2021 ◽  
Author(s):  
Jeno KONTSCHAN
Keyword(s):  
Hong Kong ◽  
First Record

Two new species of the genus Laena Dejean (Coleoptera: Tenebrionidae: Lagriinae) from Hong Kong

Zootaxa ◽  
2017 ◽  
Vol 4344 (1) ◽  
pp. 169 ◽  
Author(s):  
WOLFGANG SCHAWALLER ◽  
PAUL ASTON
Keyword(s):  
Hong Kong ◽  
New Species ◽  
Body Length ◽  
First Record ◽  
Zhejiang Province ◽  
Two New Species ◽  
Coleoptera Tenebrionidae

Two new species of the genus Laena Dejean, 1821 (Coleoptera: Tenebrionidae: Lagriinae) are described from Hong Kong: Laena hongkongica sp. n. and Laena walkeri sp. n. These constitute the first record of the genus from Hong Kong, as a species previously described from nearby area Laena ovipennis Schuster, 1926, in fact originated from Zhejiang province nearby Shanghai. Both species from Hong Kong possess a wide variation in body length, which is quite unusual for this genus. 

scholarly journals First record of the Australian redclaw crayfish Cherax quadricarinatus (von Martens 1868) in Hong Kong, China

2020 ◽  
Author(s):  
YAU Sze-man ◽  
LAU Anthony
Keyword(s):  
Hong Kong ◽  
Carapace Length ◽  
First Record ◽  
Ecological Impacts ◽  
Freshwater Crayfish ◽  
Cherax Quadricarinatus ◽  
The World ◽  
Comprehensive Survey ◽  
Stream Pool ◽  
Redclaw Crayfish

AbstractInvasive freshwater crayfish are spreading rapidly across the world. Here, we report the first record of Australian redclaw crayfish, Cherax quadricarinatus (von Martens 1868) in Hong Kong, China. Identification of the captured crayfish was confirmed using external morphological features and molecular analyses. A total of 49 crayfish were captured from a stream pool and a reservoir in Pok Fu Lam Country Park using dip nets and funnel traps. The captured C. quadricarinatus ranged from 17.20 mm to 56.40 mm (mean = 30.70) in carapace length and the sex ratio was 1:1. Since this species is globally recognized as an invasive species, a comprehensive survey on its status and invasion front, an investigation into its potential ecological impacts, as well as the formulation of a monitoring and removal strategy, are warranted.

Pteroptyx maipo Ballantyne, a new species of bent-winged firefly (Coleoptera: Lampyridae) from Hong Kong, and its relevance to firefly biology and conservation

Zootaxa ◽  
2011 ◽  
Vol 2931 (1) ◽  
pp. 8 ◽  
Author(s):  
LESLEY BALLANTYNE ◽  
XIN HUA FU ◽  
CHUN-HAT SHIH ◽  
CHUI-YU CHENG ◽  
VOR YIU
Keyword(s):  
Hong Kong ◽  
New Species ◽  
Mainland China ◽  
Morphological Characteristics ◽  
First Record ◽  
Life Stages ◽  
Mating Pair ◽  
Male Courtship ◽  
Key To Species ◽  
A New Species

Pteroptyx maipo sp. nov. is the first record of the genus Pteroptyx Olivier from mainland China and Hong Kong and represents the most northerly record for this genus. The description includes all life stages: egg, larva, pupa and adult, and covers special structures such as the female bursa plates and male copulatory clamp. Details of habitat, male courtship flash patterns and male-female courtship behaviour are described. This species is the second in the genus Pteroptyx found to use a copulatory clamp, which functions to wedge the mating pair together. A complete clamp however does not appear necessary for successful insemination. Bursa plates hold the spermatophore partially projecting into a spermatophore-digesting gland. Other functions for the plates are investigated and discussed. The deflexed elytral apex appears after eclosion in the adult male. Mechanisms for the loss of ventrite 8 in the male abdomen are explored. A list of the 30 Pteroptyx species recognised here, with habitats, some morphological characteristics and a key to species of the Oriental Pteroptyx are provided.

Revision of the Timasius chinai species group (Insecta: Heteroptera: Hebridae), with descriptions of ten new species

2004 ◽  
Vol 35 (3) ◽  
pp. 241-260 ◽  
Author(s):  
Herbert Zettel
Keyword(s):  
Hong Kong ◽  
New Species ◽  
First Record ◽  
Species Group ◽  
Malay Peninsula ◽  
Southeastern China ◽  
Northern Thailand ◽  
External Characteristics ◽  
Asian Mainland ◽  
Northeastern Thailand

AbstractThe Timasius chinai species group is redefined and taxonomically revised. Twelve species are distributed on the Asian mainland from northeastern India to southeastern China and to the Malay Peninsula, on Tioman Island, and on Java. The two earlier described species, T. chinai (Lundblad, 1933) (from Indonesia: Java) and T. miyamotoi Andersen, 1981 (from Thailand and China; first record from Laos), are redescribed. Ten new species are described: Timasius anderseni sp.n. (from Vietnam), T. gracilis sp.n. (from China: Hong Kong), T. indicus sp.n. (from India: Meghalaya), T. laoticus sp.n. (from Laos), T. malayensis sp.n. (from West Malaysia), T. montanus sp.n. (from northern Thailand), T. schuhi sp.n. (from West Malaysia: Tioman Island), T. schwendingeri sp.n. (from northeastern Thailand), T. yangae sp.n. (from West Malaysia: Tioman Island and Selangor), and T. yunnanensis sp.n. (from China: Yunnan). Keys to the species are provided based on external characteristics and on the genitalia of the males.

scholarly journals First record of the New Guinea flatworm Platydemus manokwari (Platyhelminthes, Geoplanidae) as an alien species in Hong Kong Island, China

ZooKeys ◽  
2019 ◽  
Vol 873 ◽  
pp. 1-7 ◽  
Author(s):  
Junjie Hu ◽  
Muhua Yang ◽  
Elysia Ruoyan Ye ◽  
Yulong Ye ◽  
Yao Niu
Keyword(s):  
Hong Kong ◽  
Alien Species ◽  
18S Rdna ◽  
New Guinea ◽  
Ventral Side ◽  
First Record ◽  
Central Line ◽  
Field Investigation ◽  
Dorsal Side ◽  
Land Snails

The New Guinea flatworm (Platydemus manokwari) caused extinction of the native land snails on several Pacific island in past decades, and therefore it has been listed among the top 100 of the world’s worst invasive alien species. Using morphological and molecular methods, New Guinea flatworms were discovered and identified for the first time in Hong Kong Island during a field investigation in July and August 2018. The flatworms were 32–60 mm long, 3–5 mm wide, and 1–2 mm thick. The dorsal side of the flatworm was dark brown with a thin yellow central line, and its ventral side appeared pale grey. To further verify this species, both 18S rDNA and mitochondrial cytochrome c oxidase subunit I gene (COX1) obtained from three specimens of P. manokwari were sequenced and analysed. While comparing these sequences with those previously deposited in GenBank, these 18S rDNA sequences shared 100% identity with the single available 18S rDNA sequence of P. manokwari; and the obtained COX1 sequences were identical to those of P. manokwari world genotype. Two native snails, Criptosoma imperator and Bradybaena similaris, have been found to be the prey of this predator during this investigation. Therefore, the invasive New Guinea flatworm certainly will cause a serious impact on the biodiversity of native snail populations, and an economic and environmental risk assessment for P. manokwari need to be completed in the near future in Hong Kong.

Crassicauda sp. in an Indo-Pacific humpback dolphin (Sousa chinensis)

2020 ◽  
Vol 8 (3) ◽  
pp. e000865
Author(s):  
Nathalie France Mauroo ◽  
Philip S L Beh ◽  
Eileen Harris ◽  
San Y Chan ◽  
David I Gibson
Keyword(s):  
Hong Kong ◽  
Mammary Gland ◽  
South China Sea ◽  
Histological Examination ◽  
South China ◽  
First Record ◽  
Postmortem Examination ◽  
Sousa Chinensis ◽  
New Geographical Record ◽  
Hong Kong Waters

A female Indo-Pacific humpback dolphin (Sousa chinensis) stranded in Hong Kong waters presented on postmortem examination with a single nematode with a diameter of 0.1 cm in the mammary gland, as well as mild multifocal chronic mastitis on histological examination. The parasitic material was recognised as a species of Crassicauda. To our knowledge, this is the first record of a species of Crassicauda occurring in an Indo-Pacific humpback dolphin and also represents a new geographical record for this genus in the South China Sea.

Journey from the West: first record of the Indian Ocean pilumnid crab Pilumnopeus convexus (Maccagno, 1936) (Decapoda: Brachyura: Pilumnidae) in Hong Kong

2020 ◽  
Vol 40 (5) ◽  
pp. 563-573
Author(s):  
Kingsley J H Wong ◽  
Ling Ming Tsang ◽  
Peter K L Ng
Keyword(s):  
Hong Kong ◽  
Indian Ocean ◽  
Western Indian Ocean ◽  
First Record ◽  
Coi Gene ◽  
Indigenous Species ◽  
Mtdna Coi ◽  
First Case ◽  
East And Southeast Asia ◽  
The Indian Ocean

Abstract The pilumnid crab Pilumnopeus convexus (Maccagno, 1936), native to the Arabian Sea and western Indian Ocean, has been discovered among intertidal fouling communities along shores of Hong Kong. The species was first discovered in 2011 and is believed to have become established by around 2016. Material from local sites was compared with specimens from Iran and Pakistan, and the identification was supported by molecular analyses using mtDNA COI gene sequences. This species is not yet known from East and Southeast Asia, and was probably transported to Hong Kong by international maritime shipping, likely in the ballast water or on the hulls of ships, and subsequently survived as a non-indigenous species (NIS). This represents the first case of west-to-east invasion of brachyuran crabs from the Indian Ocean reaching sub-tropical East Asia. Past studies on the local intertidal fauna, and documentations of NIS, are briefly discussed.

Endohelminths from five rare species of turtles (Bataguridae) from southeast Asia confiscated by international authorities in Hong Kong, People s Republic of China

Zootaxa ◽  
2004 ◽  
Vol 786 (1) ◽  
pp. 1 ◽  
Author(s):  
REBECCA A. MURRAY ◽  
NORMAN O. DRONEN ◽  
CHARLES K. BLEND
Keyword(s):  
Hong Kong ◽  
Parasite Species ◽  
First Record ◽  
Freshwater Turtles ◽  
New Host ◽  
Turtle Species ◽  
Republic Of China ◽  
Additional Information ◽  
Rare Opportunity ◽  
New Host Records

Specimens of 5 species of threatened, vulnerable, and endangered turtles (Cuora amboinensis, Cyclemys dentata, Heosemys grandis, Orlitia borneensis, and Pyxidea mouhotii) belonging to Bataguridae, were confiscated in Hong Kong, China on 11 December 2001 by international authorities. A review of the endohelminths previously reported from these turtles was compiled and is summarized herein. Endohelminth studies on these turtle species are reasonably scarce, and this study provided a rare opportunity to examine a limited number of specimens for endohelminths. Seven different parasite species were collected and there were 8 new host records. This is the first record of a parasite from P. mouhotii. This study is intended to provide additional information for comparisons to future parasite studies of species of Asian freshwater turtles.

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