Metapocyrtus kitangladensis sp. n., a new Pachyrhynchus cumingii GR Waterhouse, 1841 mimic from Mindanao Island, Philippines

Cabras, Analyn; Medina, Milton Norman; Zhang, Guanyang

doi:10.3897/zookeys.853.30595

Cited by 6 publications

(8 citation statements)

References 4 publications

(3 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, they were more abundant along trails and open areas. As documented previously, the majority of the Pachyrhynchini including Metapocyrtus are often collected along trails and ridges which are either fully or partially exposed to the sun ( Cabras et al 2019 ). The interior of the forest does not usually give an outstanding result in terms of collecting Pachyrhynchini .…”

Section: Resultsmentioning

confidence: 91%

“…Metapocyrtus (Orthocyrtus) davaoensis sp. nov. was collected at nearly the same locality as M. kitangladensis Cabras, Medina & Zhang, 2019. This suggests a possible mimicry between these two species, for they have similar elytral markings.…”

Section: Notes On Mimicrymentioning

confidence: 77%

“…davaoensis sp. nov. in Marilog District, Davao City, where M. kitangladensis Cabras, Medina & Zhang, 2019 was also documented. The importance of the geographic distribution of the model as the limiting factor for the effectiveness of the mimicry complex has already been established.…”

Section: Notes On Mimicrymentioning

confidence: 93%

See 2 more Smart Citations

Two new species of the genus Metapocyrtus Heller, 1912 (Coleoptera, Curculionidae, Entiminae, Pachyrhynchini), subgenus Orthocyrtus Heller, 1912, from Mindanao Island, Philippines

Cabras

Medina

Bollino³

2021

Self Cite

View full text Add to dashboard Cite

Two new species of Metapocyrtus Heller, 1912, subgenus Orthocyrtus Heller, 1912 (Coleoptera, Curculionidae, Entiminae, Pachyrhynchini) are described and illustrated from Mindanao Island, Philippines. The species are Metapocyrtus (Orthocyrtus) davaoensissp. nov. and Metapocyrtus (Orthocyrtus) hirakuisp. nov. from Davao City and Bukidnon, respectively. Brief bionomical notes and phenotypic characters compared to their sympatric Entiminae counterparts are also reported. The discovery of M. (O.) davaoensissp. nov. in Davao City confirms how understudied Coleoptera are in Mindanao and underlines the potential for the discovery of new species even in highly urbanized areas.

show abstract

Section: Resultsmentioning

confidence: 91%

Section: Notes On Mimicrymentioning

confidence: 77%

See 1 more Smart Citation

Two new species of the genus Metapocyrtus Heller, 1912 (Coleoptera, Curculionidae, Entiminae, Pachyrhynchini), subgenus Orthocyrtus Heller, 1912, from Mindanao Island, Philippines

Cabras

Medina

Bollino³

2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…One of its known genera is the Metapocyrtus . Recent discoveries on new species of Philippine weevils from the genera Metapocyrtus and Pachyrhynchus were conducted by Filipino taxonomists and systematists collaborated with taxonomists and entomologists from other countries ( Yoshitake 2012a ; 2012b ; Bollino & Sandel 2015 ; Rukmane & Barsevskis 2016 ; Rukmane 2016 ; Cabras & Rukmane 2016 , Cabras et al . 2019 ; Cabras & Medina 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Scale Structure and Reflectance Activity of Metapocyrtus apoensis with Notes on Its Distribution in Mindanao, the Philippines

Patano

Abales

Bajuyo

et al. 2021

TLSR

View full text Add to dashboard Cite

Scale structure and reflectance activity of a Mindanao endemic weevil from the genus Metapocyrtus has been studied for the first time. Specimens of Metapocyrtus apoensis Schultze, 1925 were collected through opportunistic sampling in Mount Calayo, Musuan, Mindanao, Philippines last February 2020. A total of three individuals of the species were collected all in lower dipterocarp forest with elevation of 500 masl–600 masl. Three specimens were then examined under Scanning Electron Microscopy with Energy Dispersive X-Ray (SEM_EDX) to analyse its scale structures and reflectance activity. The study provides new locality record of the Mindanao endemic species first in Bukidnon region and an updated distribution in Mindanao based on recent published articles and museum collections. The species inhabits wide ranges of habitat types that greatly differ in elevation and vegetation. Examination of scale’s structure through SEM revealed that M. apoensis scales are 50 μm–70 μm in diameter which are almost circular in shape, slightly convex with rough like surface which is termed as non-ordered nipple-like structure. The scales’ shape and surface structure clearly differ from other genera of curculionids based on published articles. Analysis of the particles on the weevil’s elytra done by EDX reveals several elements that contribute to its iridescence. Major elements such as carbon (42.3%), oxygen (27.7%) and nitrogen (15.1%) come in relatively high atomic concentrations. Microspectrometer revealed a peak reflectance wavelength of about 569.7 nm. This explains the yellow-green iridescence observed on the dorsal side of the weevil. The concentration of the scale in pits serves for protection, intraspecific recognition and camouflage. Despite of widespread distribution and high abundance of this species in Mindanao, anthropogenic disturbances such as agricultural activities are on-going which extend towards their microhabitat. Monitoring to its population is recommended as the species is restricted only in Mindanao.

show abstract

“…Currently, there are more than 51,000 species of weevils in 4,600 genera in which Philippines contributes more than 400 species [4]. Discoveries on new species of Philippine weevils was prominently conducted by taxonomists from other countries [5,6,7,8,9] but recently more dis-coveries were published by Filipino taxonomists and systematists specifically from the genera Pachyrhynchus and Metapocyrtus [9,10,11].…”

Section: Introductionmentioning

confidence: 99%

Diversity of Weevils (Coleoptera) in Marahan, Marilog Forest Reserve, Southern Mindanao, Philippines

Mohagan¹,

Patano

Melencion³

et al. 2020

J.Trop.Life.Science

View full text Add to dashboard Cite

Fieldworks were conducted last January to March, 2019 to collect and record species of weevils at Sitio Matigsalug, Marahan, Marilog Forest Reserve, Marilog District, Mindanao, Philippines. Standard sampling techniques such as belt transect and opportunistic sampling were conducted in the established 2 kilometers transect to survey the agroforest and montane ecosystems with elevations of 800-950 masl and 1,000-1,300 masl, respectively. A total of 228 individuals belonging to 2 families and 22 species of weevils were recorded, all of which are only known from forest and mountain ecosystems of Mindanao. Metapocrytus is the most encountered genus with 12 species. The montane forest had higher species richness with 15 species but with lower species abundance of 34 individuals compared to the agroforest ecosystem with 13 species and 194 individuals. Seven (7) species are common in both sites. Plant associates and behavior of the observed weevils were also noted which include 22 species of ferns and flowering plants. Other than perching behavior, species are also observed copulating, feeding and mostly hiding in abaxial part of leaves. As flightless beetles with high vulnerability for predation by other insectivorous species, the observations gathered will help in understanding their behaviors for survival. Despite of high species richness and abundance, anthropogenic disturbances such as agricultural activities are ongoing which extend towards the montane forest in the area. Conservation initiatives must be implemented to protect the remaining endemic and rare species of flora and fauna.

show abstract

Metapocyrtus kitangladensis sp. n., a new Pachyrhynchus cumingii GR Waterhouse, 1841 mimic from Mindanao Island, Philippines

Cited by 6 publications

References 4 publications

Two new species of the genus Metapocyrtus Heller, 1912 (Coleoptera, Curculionidae, Entiminae, Pachyrhynchini), subgenus Orthocyrtus Heller, 1912, from Mindanao Island, Philippines

Two new species of the genus Metapocyrtus Heller, 1912 (Coleoptera, Curculionidae, Entiminae, Pachyrhynchini), subgenus Orthocyrtus Heller, 1912, from Mindanao Island, Philippines

Scale Structure and Reflectance Activity of Metapocyrtus apoensis with Notes on Its Distribution in Mindanao, the Philippines

Diversity of Weevils (Coleoptera) in Marahan, Marilog Forest Reserve, Southern Mindanao, Philippines

Contact Info

Product

Resources

About