Comparative morphology of immature stages and adults of Hydroscapha from Taiwan, with description of a new species from Hong-Kong (Coleoptera: Myxophaga: Hydroscaphidae)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023272%3A_____%2F20%3A10134902" target="_blank" >RIV/00023272:_____/20:10134902 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/20:10419902

Výsledek na webu

<a href="https://lkcnhm.nus.edu.sg/app/uploads/2020/01/RBZ-2020-0051.pdf" target="_blank" >https://lkcnhm.nus.edu.sg/app/uploads/2020/01/RBZ-2020-0051.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.26107/RBZ-2020-0051" target="_blank" >10.26107/RBZ-2020-0051</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Comparative morphology of immature stages and adults of Hydroscapha from Taiwan, with description of a new species from Hong-Kong (Coleoptera: Myxophaga: Hydroscaphidae)

Popis výsledku v původním jazyce

Hydroscaphidae is a small family of the beetle suborder Myxophaga comprising miniaturised aquatic beetles resembling some staphylinids. Surprisingly little is known about the taxonomy and biology of these beetles. In this study we present novel data based on freshly collected material of Hydroscapha LeConte, 1874, from Taiwan and Hong Kong. Morphology and DNA barcoding revealed two species: Taiwanese endemic H. takahashii Miwa, 1935, and H. shuihau, a new species, so far known only from Lantau Island of Hong Kong. Both species are (re)described, illustrated, and compared to the types of H. hunanensis Pu, 1948. Both species were found in algal mats in ephemeral hygropetric habitats; in two cases adults massed together with immature stages were observed. Larvae and pupae of H. takahashii were studied and illustrated using SEM and light microscopy. Comparisons of immature stages of Hydroscaphidae based on our new data and a detailed review of the literature reveals that principal differences between genera and species can be found in the modifications of the tracheal system both in larvae and pupae. Four larval instars were found in H. takahashii, corresponding to the number of instars known in the myxophagan family Torridincolidae. Based on our observations, we suggest that the minute body size of Hydroscapha may be one of the adaptations for colonising and exploiting ephemeral habitats.

Název v anglickém jazyce

Comparative morphology of immature stages and adults of Hydroscapha from Taiwan, with description of a new species from Hong-Kong (Coleoptera: Myxophaga: Hydroscaphidae)

Popis výsledku anglicky

Hydroscaphidae is a small family of the beetle suborder Myxophaga comprising miniaturised aquatic beetles resembling some staphylinids. Surprisingly little is known about the taxonomy and biology of these beetles. In this study we present novel data based on freshly collected material of Hydroscapha LeConte, 1874, from Taiwan and Hong Kong. Morphology and DNA barcoding revealed two species: Taiwanese endemic H. takahashii Miwa, 1935, and H. shuihau, a new species, so far known only from Lantau Island of Hong Kong. Both species are (re)described, illustrated, and compared to the types of H. hunanensis Pu, 1948. Both species were found in algal mats in ephemeral hygropetric habitats; in two cases adults massed together with immature stages were observed. Larvae and pupae of H. takahashii were studied and illustrated using SEM and light microscopy. Comparisons of immature stages of Hydroscaphidae based on our new data and a detailed review of the literature reveals that principal differences between genera and species can be found in the modifications of the tracheal system both in larvae and pupae. Four larval instars were found in H. takahashii, corresponding to the number of instars known in the myxophagan family Torridincolidae. Based on our observations, we suggest that the minute body size of Hydroscapha may be one of the adaptations for colonising and exploiting ephemeral habitats.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10616 - Entomology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Raffles Bulletin of Zoology

ISSN

0217-2445

e-ISSN

—

Svazek periodika

68

Číslo periodika v rámci svazku

květen

Stát vydavatele periodika

SG - Singapurská republika

Počet stran výsledku

16

Strana od-do

334-349

Kód UT WoS článku

000600028700027

EID výsledku v databázi Scopus

—