scholarly journals Discovery of a specialist Copelatinae fauna on Madagascar: highly ephemeral tropical forest floor depressions as an overlooked habitat for diving beetles (Coleoptera, Dytiscidae)

ZooKeys ◽  
2019 ◽  
Vol 871 ◽  
pp. 89-118 ◽  
Author(s):  
Tolotra Ranarilalatiana ◽  
Johannes Bergsten

Diving beetles are generally aquatic and live submerged in water during larval and adult stages. A few groups have colonised hygropetric habitats and fewer species still can possibly be referred to as terrestrial. Here we describe six new Copelatine species that were mainly found in dry shallow forest floor depressions in the eastern and northeastern lowland humid forests of Madagascar. Three new species are described in each of the two genera Copelatus and Madaglymbus: Copelatus amphibiussp. nov., Copelatus betamponasp. nov., Copelatus zanatanensissp. nov., Madaglymbus kelimasosp. nov., Madaglymbus menalambasp. nov., and Madaglymbus semifactussp. nov. Diagnosis, description, known distribution, ecology, and conservation notes are provided for each species. All species are illustrated with a dorsal habitus image, ventral and lateral views of the male penis, and parameres. Photographs of the unusual terrestrial habitats where the species were found are provided. Madaglymbus menalambasp. nov. is also documented with macrophotos and videorecordings of the terrestrial locomotion and behaviour in the field. Although these species should not be classified as terrestrial, or even semi-terrestrial Dytiscidae, they seem to be specialists of very ephemeral aquatic habitats and stay put instead of disperse when the habitat dries up. It is hypothesised that this lifestyle and behaviour on Madagascar is restricted to the high-precipitation humid forest regions mainly in the east. It may also represent a transition step, or stepping-stone, towards becoming fully terrestrial, a step that the few known terrestrial Dytiscid taxa once passed through. It is very likely that this type of habitat is overlooked for aquatic beetles, not only in Madagascar, and the six species herein described may be just the “tip of the iceberg”.

Phytotaxa ◽  
2014 ◽  
Vol 173 (2) ◽  
pp. 117 ◽  
Author(s):  
Endymion D. Cooper ◽  
Matt A. M. Renner

Molecular and morphological data support the recognition of a new Lepidozia species related to L. pendulina and also endemic to New Zealand, which we dedicate to Dr John Braggins. Lepidozia bragginsiana can be distinguished from closely related and other similar species by its bipinnate branching, the narrow underleaf lobes, typically uniseriate toward their tip on both primary and secondary shoots, the asymmetric underleaves on primary shoots that are usually narrower than the stem and also possess basal spines and spurs, the production of spurs and spines, or even accessory lobes, on the postical margin of primary and secondary shoot leaves; and by the relatively small leaf cells with evenly thickened walls.  Lepidozia bragginsiana is an inhabitant of hyper-humid forest habitats where it occupies elevated microsites on the forest floor. A lectotype is proposed for L. obtusiloba.


Zootaxa ◽  
2017 ◽  
Vol 4242 (3) ◽  
pp. 467 ◽  
Author(s):  
FRANCISCO DIOGO R. SOUSA ◽  
LOURDES M. A. ELMOOR-LOUREIRO ◽  
ELIANA A. PANARELLI

The main goal of this paper is to describe three new species of the genus Monospilus Sars, 1862 (Crustacea: Cladocera). Monospilus macroerosus sp. nov. differs from other species of the genus in several peculiar morphological traits, the most striking being the presence of a saw-shaped pecten of teeth on the postabdominal claw. This species inhabits semiterrestrial habitats (wet leaf litter on hydromorphic soil from gallery forest), exhibiting adaptations related to movement and food handling in this type of habitat. Monospilus brachyspinus sp. nov. inhabits truly aquatic habitats, where lives being associated with macrophytes and submerged leaves. It may be recognized by the postabdominal claw, which is armed with proximal spinulae modified in a short spine. In Monospilus sp., the proximal spinulae are modified in a long and slender spine. So far, Monospilus sp. occurs in southern South America, while Monospilus macroerosus sp. nov. and Monospilus brachyspinus sp. nov. occur in the Cerrado biome in Brazil, in the central portion of South America. Some conclusions about the conservation status of new species also are made. 


Author(s):  
Ricardo Paredes-León ◽  
Angélica María Corona-López ◽  
Alejandro Flores-Palacios ◽  
Víctor Hugo Toledo-Hernández

A survey of the camerobiid mites living on epiphytic bromeliads and the forest floor of a Mexican tropical dry forest was carried out. We found three new species of the genus Neophyllobius, which are described in this paper; the first two, namely N. cibyci sp. nov. and N. tepoztlanensis sp. nov., were both found inhabiting bromeliads (Tillandsia spp.) and living on two tree species (Quercus obtusata and Sapium macrocarpum); the third, N. tescalicola sp. nov., was found in soil and litter under Q. obtusata. These three new species can be differentiated from other species in the genus by a combination of morphological characters in adult females, mainly those setae on femora and genua I. The idiosoma and leg setal ontogeny of a camerobiid mite is presented for the first time in this paper, illustrating chaetotaxic notations and their relative positions in N. cibyci sp. nov. larva, protonymph and adults (female and male), and establishing setal homologies among instars. Setal homology with other species in the cohort Raphignathina is briefly discussed. Additionally, a compilation and an identification key to all known species of camerobiid mites in Mexico is provided.


Zootaxa ◽  
2020 ◽  
Vol 4858 (4) ◽  
pp. 451-506
Author(s):  
ANTHONY JOHN CORNEL ◽  
MARIE PAUL AUDREY MAYI ◽  
CYRIL KOWO ◽  
DAVID FONCHA ◽  
ESACK ANDONGMA ◽  
...  

Species of Culex (Diptera: Culicidae) belonging to the subgenus Culiciomyia were collected in partially logged areas and in surrounding pristine forest (Talangaye Forest) in the Nguti Subdivision in the South-West Region of Cameroon. Mosquitoes were collected mainly by sweep netting through forest floor vegetation. Morphological species identification of African Culiciomyia relies almost exclusively on the structure of the male genitalia and the shapes of comb scales on the maxillary palpi of males. Other features of males and the habitus of females are largely indistinguishable between the species of this subgenus. In total, seven currently described species and three new species were collected in the forest. The males of the three new species are described and named as Culex apicopilosus Cornel & Mayi, sp. n., Culex lanzaroi Cornel & Mayi, sp. n. and Culex pseudosubaequalis Cornel & Mayi, sp. n. More detailed descriptions of males of the other currently known species that were collected in the Talangaye Forest and pictorial keys to the males of all Afrotropical species of Culiciomyia, including the new species, are provided. 


Zootaxa ◽  
2018 ◽  
Vol 4526 (2) ◽  
pp. 151 ◽  
Author(s):  
WEEYAWAT JAITRONG ◽  
WATTANACHAI TASEN ◽  
BENOIT GUÉNARD

The genus Myopias Roger, 1861 is distributed in the Australian, Oceanian, Oriental and southern Sino-Japanese realms. Currently 40 valid species and three subspecies have been described, but none have ever been recorded for Thailand. Here we review the species of Thailand, recognizing seven in total. Four are new records of previously described species: Myopias bidens (Emery, 1900), M. crawleyi (Donisthorpe, 1941), M. maligna punctigera (Emery, 1900), and M. mandibularis (Crawley, 1924). Three new species are described: Myopias minima sp. nov. from southern Thailand, M. sakaeratensis sp. nov. from eastern Thailand and M. sonthichaiae sp. nov. from northern and western Thailand. The queen caste of M. mandibularis is described here for the first time and additional descriptions of other species are provided. All these species were found to nest in rotten wood on the forest floor. 


Zootaxa ◽  
2017 ◽  
Vol 4318 (1) ◽  
pp. 1 ◽  
Author(s):  
RYLAN SHEARN ◽  
ISA SCHÖN ◽  
KOEN MARTENS ◽  
STUART HALSE ◽  
JOE KRAWIEC ◽  
...  

In this study, 13 previously recorded populations of Ilyodromus amplicolis De Deckker, 1981 from temporary aquatic habitats in Western Australia were scanned for undescribed species diversity using morphological and molecular systematics techniques. The study found congruent morphological and molecular evidence for three species that are new to science, all of which are formally described here (I. armacutis n. sp., I. sensaddito n. sp. and I. hiatus n. sp.). The findings shed light on the potential for further undescribed diversity in the genus Ilyodromus Sars, 1894. 


2019 ◽  
Vol 40 (2) ◽  
pp. 99-122 ◽  
Author(s):  
Yoandri S. Megna ◽  
Lars Hendrich ◽  
Andrea Lorena García-Hernández ◽  
Rodulfo Ospina-Torres ◽  
Carlos Prieto ◽  
...  

2016 ◽  
Vol 3 (1) ◽  
pp. 27
Author(s):  
Armando Bilardo ◽  
Saverio Rocchi

The paper deals with some additions and corrections of preceding works on Coleoptera Hydradephaga from Gabon, and a rectification of «A revision and synopsis of the African species of the genus <em>Copelatus</em> Erichson, 1832. The group <em>erichsonii</em>, subgroup <em>atrosulcatus</em> (Coleoptera Dytiscidae)» (Bilardo &amp; Rocchi, 2015). Three new species of diving beetles are described, namely: <em>Hydrovatus</em> <em>batekensis</em> n. sp. of the <em>villiersi</em> group, close to <em>H. niger</em> Gschwendtner, 1938 and <em>Hydrovatus bistroem</em>i n. sp. of the oblongipennis group, close to <em>H. lintrarius</em> Guignot, 1958 and <em>H. omentatus</em> Guignot, 1950; both new species are principally distinguishable by the shape of aedeagus. The third new species is <em>Copelatus</em> <em>terzanii</em> n. sp. of the <em>irinus</em> group (subgroup <em>assimilis</em>) close to <em>C. efoutensis</em> Bilardo &amp; Rocchi, 1995 and <em>C. curtistriatus</em> Bilardo &amp; Rocchi, 1995; also that new species is distinguishable above all by the shape of aedeagus. The male of Yola marginata Biström, 1983, unknown up to now, is described. The second record from Gabon of Copelatus mvoungensis Bilardo &amp; Rocchi, 2004 is reported. The following synonymies are proposed: <em>Copelatus</em> <em>apuzzoi</em> Bilardo &amp; Rocchi, 1999 = <em>C. pederzanii</em> Bilardo &amp; Rocchi, 1995 and <em>Copelatus assimilis</em> <em>incristatus</em> Bilardo &amp; Rocchi, 2002 = <em>Copelatus assimilis </em>Régimbart, 1895. The paper Bilardo &amp; Rocchi (2015) contains a misleading phrase concerning the subdivision of the subgroups <em>atrosulcatus/vigintistriatus</em>; it was therefore necessary to replace the ambiguous phrase with a correct one. The rectified phrase is reported herewith in French and in English.


Sign in / Sign up

Export Citation Format

Share Document