Xenocerus striatus JORDAN 1894 is another anthribid species that is not so common, based on collecting experience in Mindanao. Compared with the other species that I have featured in earlier posts, this one is smaller.
Like the other Xenocerus species, this can often be found in dead or rotting wood and can easily be mistaken for a cerambycid. It seems not much is known about this species. This one was determined by M Tryzna.
I have finally revised the entire Papers section of this blog using cascading style sheets (CSS) for faster rendition of the pages and being standards compliant. However, instead of integrating it with the blog, I made it separate, as with the galleries, species, checklist and other pages.
For the next step, I am revising and redesigning the different section pages. Do note that due to the number that needs revisions, there are many broken links which will be fixed in due time.
Just bear with me.
W. Schultze, director of the Bureau of Science in Manila during the early part of the 20th century published in The Philippine Journal of Science his three part monograph on the Pachyrrhynchini:
A Monograph of the Pachyrrhynchid Group of the Brachyderinae Curculionidae: Part I The Genus Pachyrrhynchus Germar (A & B), 1923 & 1924
Part Ia consists of 28 species, 3 subspecies and 3 variations with 4 new descriptions.
Part 1b includes 52 species, 8 subspecies and 6 variations of which 4 are new to Science.
A Monograph of the Pachyrrhynchid Group of the Brachyderinae, Curculionidae: Part II The Genera Eupachyrrhynchus, Macrocyrtus, Eumacrocyrtus, Apocyrtus, Proapocyrtus, Pseudapocyrtus, Nothapocyrtus and Exnothapocyrtus, 1924
Part II treats 31 species and 2 variations of which 2 are new.
A Monograph of the Pachyrrhynchid Group of the Brachyderinae, Curculionidae: Part III The Genera Apocyrtidius Heller and Metapocyrtus Heller, 1925
Part III 176 species, 12 subspecies and 15 variations with 100 being new descriptions.
All in all, the three parts counts 287 species, 23 subspecies and 26 variations with 110 being new to Science. Between 1925 and 1934, there were additional new descriptions of Pachyrrnchini but beyond that, none.
The tribe Pachyrrhynchini (Brachyderinae, Curculionidae) is one of the very fascinating and perhaps the most striking beetle species that can be found in the Philippines. A profusion of elytral markings, exuberant colors and hues from the deepest blacks to almost gem like qualities and metallic luster that adds to the fascination. Wingless, these group of beetles are also masters of survival ensured by its very tough and inflated elytra, fused at the sutures, that acts as its main protection.
Another notable characteristic of this group is the way mimicry has been practiced. In a given locality, different species belonging to different genera of the tribe has almost the same markings and elytral designs. Species of the genus Doliops (Lamiinae, Cerambycidae) always have a Pachyrrhynchus model. And in one very rare encounter that I had during one collecting trip, I was almost fooled when what I thought to be a small Metapocyrtus was in fact a small spider!
While it is present in other islands beyond the country, it is safe to say that a good 95% of species are endemic here. These beetles generally are found in most islands but especially at the higher, mountainous elevations of primary or secondary forests. To some extent, cultivated areas sometimes harbor this group but kind of scarce. As for the distribution, Luzon seems to have the most number of species and variations while Palawan, geographically part of Sundaland and based on published literature, is not so rich in species.
While this group is really striking, like most Philippine Coleoptera, it is not studied in detail. The only exhaustive references that treats this tribe was accomplished by W. Schultze, assigned at the Bureau of Science in Manila from around 1910 – 1930s, when he published his monograph in a series of articles at the Philippine Journal of Science. Of course, Waterhouse, Heller (Schultze’s contemporary) et al described the earlier species but he was the only one who organized this wonderful but challenging group.
I was able to secure a 1934 paper of Schultze wherein he has descriptions of new Pachyrrynchini species but after that, I have not encountered other literature that deal with new descriptions or revisions except to hear about one published in the 1940s but don’t have a copy. From there, its a blank.
During the years I have been collecting this group, it seems that many of what I have are new to Science. Unfortunately, with the dearth of new literature, availability of type specimens (Schultze’s types stored at the Bureau were totally obliterated during World War II and one has to refer to collections found in European museums) and the inherent difficulty of identifying even described species because of the sheer number of variations and similarities, I feel that it would really take time and the effort of very dedicated entomologists to finally bring order to this diverse group of beetles.
Anoplophora lucipor NEWMAN 1842 is a beautiful cerambycid species that is known only in the island of Luzon where specimens have been collected in Bicol, Aurora and Bataan, to mention some localities. This is almost similar to A. asuanga and A. tianaca but the differing characteristics are:
- spots along the elytral suture meet together
- numerous small spots of whitish pubescence scattered between larger, rounded spots of pubescence
- integumental iridescence is more pronounced, either with green or violet
- female antennae does not extend to the apex of the elytra
It should be noted that the size as well as the elytral maculations are varied.
Newman added this species, the second in the genus, in 1842. In 1989, Hudepohl described a new subspecies as A. lucipor lumawigi which was collected in the Mountain Province by Romeo Lumawig but Lingafelter and Hoebeke, in their revision of the genus in 2002, synonymized it. Like the other three Anoplophora species in the country, the two authors indicate that there is not enough material to fully understand its taxonomic placement and thus retain the current species designations.