scholarly journals Review of the flower-inhabiting water scavenger beetle genus Cycreon (Coleoptera, Hydrophilidae), with descriptions of new species and comments on its biology

2018 ◽  
Vol 65 (1) ◽  
pp. 99-115 ◽  
Author(s):  
Emmanuel Arriaga-Varela ◽  
Sin Yeng Wong ◽  
Alexander Kirejtshuk ◽  
Martin Fikácek

The hydrophilid genusCycreonOrchymont, 1919, previously known from two historical specimens only, is reviewed based on the numerous material collected recently from the inflorescences of various Araceae species in the Malay Peninsula and Borneo. Four species are recognized in the genus:C.sculpturatusOrchymont, 1919 from Sumatra,C.armandiShatrovskiy, 2017 from Singapore,C.adolescenssp. n.from peninsular Malaysia, andC.floricolasp. n.with two subspecies, the nominotypical one from Peninsular Malaysia, andC.floricolaborneanussubsp. n.from Borneo. All species are very similar, differing only by the pronotal punctation, shape of the clypeus and the mentum, and the form of the median lobe of the aedeagus. Specimens ofC.floricolasp. n.andC.adolescenssp. n.were collected from inflorescences of various genera of the family Araceae. The field observations and analysis of mid gut contents indicates that they feed on organic material on internal organs of the inflorescences, including the pollen of the host plant. They were also observed to carry a large amount of pollen and are likely pollinators of their host species of Araceae.

2019 ◽  
Vol 20 (9) ◽  
Author(s):  
SYAMIL ABD RAHMAN ◽  
MOHD-RIDWAN ABD RAHMAN ◽  
AMSAH MOHD ARIF ◽  
MUHAMMAD ABDUL-LATIFF ABU BAKAR ◽  
BADRUL MUNIR MD ZAIN

Abstract. Syamil AR, Mohd-Ridwan AR, Amsah MA, Abdul-Latiff MAB, Md-Zain BM. 2019. Population census and age category character of Stump-tailed macaque, Macaca arctoides, in Northern Peninsular Malaysia. Biodiversitas 20: 2446-2452. Macaca arctoides is reported to be distributed only in the northern part of Malay Peninsula. Intensive scientific observations have never been carried out before on this neglected macaque in the northern range. Thus, in this article, an estimation of population data on the Malaysian stump-tailed macaques that were found in Wang Kelian forest areas in Perlis State Park, Malaysia is presented. Intensive field observations were conducted from Sept 2018 to January 2019 with scanning sampling. The study revealed a total of 171-176 stump-tailed macaques, consisting of 44 (25%) adult males, 28 (16%) adult females, 19-22 (11%) sub-adult males, 16-19 (10%) sub-adult females, 43 (25%) juveniles, and 21-23 (13%) infants. Two main groups were observed, which were the Nomad and the Batat groups. Their ranging areas appear to sometimes overlap each other, while some Nomad members were observed in the Batat group. The age structure can be differentiated through body size and pelage coloration. The stump-tailed macaque populations in Wang Kelian are sensitive to human presence, while their habitat area is threatened by human illegal poaching activities. More conservation efforts are needed to conserve this neglected macaque from local extinction.


Crustaceana ◽  
1997 ◽  
Vol 70 (6) ◽  
pp. 710-719 ◽  
Author(s):  
Peter K.L. Ng

AbstractTwo new species of freshwater crabs of the family Parathelphusidae are described from southern Thailand. Sayamia melanodactylus sp. nov. is one of the smallest members of the genus known, and seems to be most closely related to S. sexpunctata, but differing in carapace and male gonopod characters as well as in the colour of the fingers of its minor chelae (black against brown). Heterothelphusa fatum sp. nov. is related to H. insolita from nearby northeastern Peninsular Malaysia, but has a distinctly more swollen carapace, proportionately more slender ambulatory legs and a very differently structured major male chela.


2019 ◽  
Vol 24 (9) ◽  
pp. 1799-1808
Author(s):  
Maciej Skoracki ◽  
Martin Hromada ◽  
Petra Prevuznakova ◽  
Wanyoike Wamiti

Quill mites (Acariformes: Prostigmata: Syringophilidae) parasitizing waxbills of genus Estrilda Swainson (Aves: Passeriformes: Estrildidae) from the Sub-Saharan region are studied for the first time. Among them, a new species, Syringophiloidus estrildus sp. nov., is described and new host species for Neosyringophilopsis lonchurus Skoracki, 2008, Neoaulonastus oryzivorus (Skoracki, 2011) comb. nov., and Picobia lonchurae Skoracki et al., 2016 are recorded. In our study, we examined 120 specimens belonging to seven of the 16 (44%) species of the genus Estrilda. The prevalence of infestation by syringophilid species varied from 3.7 to 25%. The host and habitat (feather type) specificity are discussed. 


1998 ◽  
Vol 14 (4) ◽  
pp. 427-443 ◽  
Author(s):  
Hans-Peter Heckroth ◽  
Brigitte Fiala ◽  
Penny J. Gullan ◽  
Azarae HJ. Idris ◽  
Ulrich Maschwitz

Myrmecophytic species of the Paleotropical plant genus Macaranga (Euphorbiaceae) have hollow stems that are almost always occupied by ants of the genus Crematogaster and scale insects of the family Coccidae (Hemiptera: Coccoidea). The coccids have a cryptic endophytic lifestyle and are confined to this microhabitat. They are much more diverse than previously recognised. First data are presented on the diversity, prevalence, specificity and distribution of the coccids associated with myrmecophytic Macaranga species. Twenty-two species of Coccidae in total, including 15 previously unknown from Macaranga, were discovered from 19 species of Macaranga in Peninsular Malaysia and Borneo. The original describers tentatively assigned the known coccid species to Coccus (Coccinae) but the Macaranga coccids still require taxonomic research to establish their correct placing. The coccids varied in their host-plant specificity from species that occurred in most of the sampled Macaranga to one species that was found almost exclusively only on a single host species. In addition to their occurrence on Macaranga, only three species, C. macarangae and C. secretus and morphospecies C. 214 were found on rare occasions in the stem interior of a few other myrmecophytes and in a non-myrmecophytic liana, but did not regularly colonise these plants. Most of the coccids can be regarded as highly specific at the plant genus level.


Zootaxa ◽  
2010 ◽  
Vol 2625 (1) ◽  
pp. 40 ◽  
Author(s):  
L. LEE GRISMER ◽  
SHAHRUL ANUAR ◽  
EVAN QUAH ◽  
MOHD ABDUL MUIN ◽  
CHAN KIN ONN ◽  
...  

A new species, Cyrtodactylus durio sp. nov., is described from northwestern Peninsular Malaysia on the basis of its head, body, limbs, and tail being extremely spinose as well as other unique combinations of squamation and color pattern. It is proposed that C. durio sp. nov. forms a clade with C. brevipalmatus, C. elok, C. spinosus, and C. stresemanni on the basis of having a spiny, prehensile tail and that it is the sister species of C. stresemanni based on unique caudal tuberculation. Cytrodactylus durio sp. nov. is the latest in a growing list of new species of amphibians and reptiles recently described from the Malay Peninsula, and Peninsular Malaysia in particular, that clearly underscores the need for continuing exploratory research in these regions.


Phytotaxa ◽  
2018 ◽  
Vol 373 (3) ◽  
pp. 236
Author(s):  
KHOON MENG WONG

A new species, Urophyllum malayense (Rubiaceae) is described, endemic to the Malay Peninsula (Peninsular Malaysia and Singapore). It has resemblances to Urophyllum trifurcum but differs notably in the extent of inflorescence branching and flower size.


2014 ◽  
Vol 59 (1) ◽  
Author(s):  
Maciej Skoracki ◽  
Markus Unsoeld ◽  
Katarzyna Kavetska ◽  
Katarzyna Kaszewska

AbstractThe paper contains a review of quill mites of the subfamily Picobiinae (Acari: Prostigmata: Syringophilidae) associated with woodpeckers (Aves: Piciformes: Picidae). Three new species are described: Picobia mentalis Skoracki et Unsoeld sp. nov. from Picus mentalis Temminck, Neopicobia ea Skoracki et Unsoeld sp. nov. from Celeus flavus (St. Mueller) (type host), C. elegans (St. Mueller), C. torquatus (Boddaert), and Neopicobia freya Skoracki et Unsoeld sp. nov. from Dryocopus galeatus (Temminck) (type host) and Piculus rubiginosus (Swainson). Additionally, six new host species for Picobia heeri Haller, 1878 and 12 new host species for Picobia dryobatis (Fritsch, 1956) are reported. A complete list of the picobiines parasitising birds of the family Picidae is presented in the tabular form.


Zootaxa ◽  
2002 ◽  
Vol 27 (1) ◽  
pp. 1 ◽  
Author(s):  
MIEJ SKORACKI ◽  
BOZENA SIKORA

Five species and one undetermined species, belonging to six genera of the Syringophilidae (Acari: Prostigmata), are recorded from Argentina (South America). Two new species are described and figured: Syringophiloidus tarnii sp. n. from the Huet-huet Pteroptochos tarni (Passeriformes: Rhinocryptidae) and Aulobia paraguaiae sp. n. from the Magellan Snipe Gallinago paraguaiae (Charadriiformes: Scolopacidae). Four new host species of the family Syringophilidae are given.


2020 ◽  
pp. 1-33
Author(s):  
Chirasak Sutcharit ◽  
Ekgachai Jeratthitikul ◽  
Piyoros Tongkerd ◽  
Somsak Panha

Indochina land snails of the family Ariophantidae are in need of thorough systematic revision. Here we comprehensively revise the systematics of the large-shelled, sinistral (counterclockwise) coiling snails from Thailand and Peninsular Malaysia. Molecular phylogeny based on mitochondrial (coi and 16S) and nuclear (28S) gene sequences demonstrates that these sinistral snails are not members of Dyakiidae as previously thought, but instead are more closely related to the genus Hemiplecta in the family Ariophantidae. Comparative morphology also reveals similarity of reproductive organ features (globular gametolytic organ, well-developed dart apparatus, and lack of amatorial organ complex). Based on this evidence, we propose to transfer these sinistral snails to the genus Hemiplecta. Molecular phylogenetic analyses further strongly support the monophyly of this sinistral lineage with respect to other members of Hemiplecta. This monophyletic clade consists of five members including three species that were previously classified as “Dyakia”, H. lahatensis, H. retrorsa and H. salangana, and two new species described herein, H. ligorica n. sp. and H. thailandica n. sp. This study also suggests that the anatomy of the gametolytic organ in the genus Hemiplecta corresponds well with the phylogenetic relationships and appears to be a taxonomically informative character, while the penial verge has little utility for generic recognition.


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