nd_current_existing_token_placeholder_ */ ?>

Metapocyrtus (Artapocyrtus) quadriplagiatus Metapocyrtus (Orthocyrtus) quadrulifer Sheryl Yap’s paper, Checklist of the Metapocyrtus Complex (Curculionidae: Entiminae: Pachyrrhynchini) of the Philippines, published in Asia Life Sciences [17(2):240-260, 2008], surveys the existing species of the genus culled from literature and is an important step in the study of this long understudied genus. The checklist includes 214 species of the genus Metapocyrtus as well as 6 and 2 species of the associated genera, Homalocyrtus and Proapocyrtus. The last two were raised to genus status in Yap & Gapud, 2007.

When broken down:

  • Genus Metapocyrtus (214 species, 12 subspecies, 18varieties)
    • Subgenus Artapocyrtus (17 species)
    • Subgenus Dolichocephalocyrtus (21 species)
    • Subgenus Metapocyrtus (85 species)
    • Subgenus Orthocyrtus (31 species)
    • Subgenus Sclerocyrtus (4 species)
    • Subgenus Sphenomorphoidea (10 species)
    • Subgenus Trachycyrtus (46 species)
  • Genus Homalocyrtus (6 species)
  • Genus Proapocyrtus (2 species)

Looking over the checklist, I noticed that new species were last described by Schultze and Heller in 1934 and no other additional descriptions were made. This just shows that there is really a need to study this interesting group of the Pachyrrhynchini considering that there are still lots of undescribed species out there.

Note: Sheryl Yap is a University Extension Specialist of the Museum of Natural History at the University of the Philippines Los Baños College.

Sample pages showing images of the paper.

Sample pages showing images of the paper.

The last time that the genus Metapocyrtus has been treated seriously was in the 1925 paper of Schultze: A monograph of the pachyrrhynchid group of the Brachyderinae, Curculionidae: Part 1, The genera Apocyrtidius Heller and Metapocyrtus Heller published in the Philippine Journal of Science [26 (2):131-309]. Yap and Gapud’s 2007 paper follows this up with an updated systematic study.

From the paper’s abstract:

The subgeneric concepts within the genus Metapocyrtus Heller were evaluated by reexamining the characters previously used to distinguish them, using representative species, together with illustrations and photographs of rostral characters and habitus. A key to the subgenera of Metapocyrtus, as well as subgeneric diagnoses and descriptions for each subgenus are provided.

Of the 9 subgenera of Metapocyrtus, Homalocyrtus is proposed to be raised to genus level, while Proapocyrtus is proposed to be reinstated as a valid genus.

Compared with Schultze’s work where not so detailed illustrations were presented, the two authors showed interesting detailed photographs of the rostrum, the single identifying characteristic that separates the different subgenera and genera.

I hope that with this paper, further study will be done on this interesting but understudied genus.

Note: Sheryl Yap is a University Extension Specialist of the Museum of Natural History at the University of the Philippines Los Baños College.

Victor Gapud is a professor at the Crop Protection Cluster of the University of the Philippines Los Baños College.

The tribe Pachyrrhynchini is one of the spectacular curculionid beetles in the Philippines with the genus Pachyrrhynchus, the star of the group, dazzling many entomologists and collectors alike. There are also allied genera of which, one of the biggest is the genus Metapocyrtus. Less spectacular as the former but interesting nonetheless.

Not since W Schultze, then the director of the Bureau of Science in Manila published his last work on the tribe in 1934, the study of these magnificent beetles, where Philippine occurring species are specifically mentioned, has been sporadic:

Early this year, Sheng Yap (University Extension Specialist, Museum of Natural History, University of the Philippines Los Baños) got in touch with me and sent me two new and significant papers of the genus Metapocyrtus, a god send, considering the dearth of papers on the group:

I will be detailing these two papers in two succeeding posts.

Parandra cabigasi SANTOS-SILVA sp. nov.

Parandra cabigasi SANTOS-SILVA sp. nov.

I’ve now updated my Parandrinae and species pages to reflect a soon to be published paper by Antonio Santos-Silva that I have previously mentioned. As emailed to me by Dan Heffern, two beetle species in my collection, both collected in Mindanao, will be named as Parandra cabigasi and Parandra ohbayashii. These forms part of seven new species of the cerambycid subfamily that are new to the country.

Until the paper will come out, I am retaining the genus.

I got good news from Eduard that he is now preparing the third part of his study of new Philippine Cerambycidae that will be published probably later this year. Of the 15 new and interesting species, five came from my collection.

Some notes:

*Parazosne cabigasi VIVES sp. nov., is named after me. I originally placed this as Acronioglenea sp. in this post.

**He will also be describing a new genus, Cristaphanes VIVES gen. nov. which will have C. filipinensis VIVES sp. nov. as the species. As he emailed, it was supposed to be under genus Lasiophanes but since it is an occupied name, he will describe a new one.

***Epipedocera kalingana VIVES sp. nov. (from Kalinga province) brings to three the number of species under the genus. I first posted about this one here.

****Finally, the Polyzonus species that I have posted previously and erroneously identified as Podanychroma monticola HUDEPOHL 1989 will now be described as Polyzonus bentanachsi VIVES sp. nov. in honor of Joan Bentanachs.

Below are the species from my collection that will be included.

Page 9 of 29« First...7891011...20...Last »