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Baltic J. Coleopterol. 23(2) 2023
https://doi.org/10.59893/bjc.23(2).014 ISSN 1407 – 8619
263
BORNEOGRAMMUS HAMIGUITANUS SP. NOV.
(COLEOPTERA: CERAMBYCIDAE) FROM MINDANAO
Arvīds Barševskis, Chrestine Torrejos
Barševskis A., Torrejos Ch. 2023. Borneogrammus hamiguitanus sp. nov. (Coleop-
tera: Cerambycidae) from Mindanao. Baltic J. Coleopter., 23(2): 263 - 266.
Borneogrammus hamiguitanus sp. nov., a species new to science, is described from
Mindanao Island. The previously monotypic genus, known only from Borneo (Ma-
laysia, Sabah), is recorded in the Philippines for the first time.
Key words: Borneo, Borneogrammus, longhorned beetles, Hamiguitan, oriental
fauna, Philippines
Arvīds Barševskis. Daugavpils University, Institute of Life Sciences and Technology,
Coleopterological Research Center, Vienības Str. 13, Daugavpils, LV-5401, Latvia;
e-mail: arvids.barsevskis@du.lv
Coleoptera Research Center, Institute of Biodiversity and Environment, University of
Mindanao, Davao City, 8000, Philippines.
ORCID: https://orcid.org/0000-0001-9703-0115
Chrestine Torrejos. Coleoptera Research Center, Institute of Biodiversity and Envi-
ronment, University of Mindanao, Davao City, Philippines; e-mail: ctorre-
jos@umindanao.edu.ph
ORCID: https://orcid.org/0000-0002-4432-5902
INTRODUCTION
The Cerambycidae fauna of the Philippines
has close biogeographical ties with Borneo.
Heffern (2005) explained that Palawan and
Borneo were once part of the Sunda Shelf
and connected by a land bridge making the
cerambycid faunas of the two islands very
closely related. Mindanao Island and Bor-
neo are also close, so several genera are
shared by both islands. However, the rest of
the Philippines has always been isolated
from mainland Asia, so the species found in
the archipelago as are primarily indigenous.
Genus Borneogrammus Vives & Heffern,
2016 belongs to the Agapanthiini Mulsant,
1839, which is a tribe of flat-faced longhorn
beetles in the family Cerambycidae, sub-
family Lamiinae. The tribe consists of 75
genera, with nearly 679 species distributed
worldwide. The tribe is represented by 22
species in the Philippines, coming from 10
genera, -7 of which also found in Borneo
(Roguet 2023).
Borneogrammus Vives & Heffern, 2016,
named after its place of origin – Borneo
(Malaysia, Sabah), belongs to the tribe
Barševskis A., Torrejos Ch.
264
Agapanthiini. The genus is characterized by
acuminate head, thick cylindrical scape,
elongate and narrow metapisterna, and an-
tennae internally fringed with long setae
(Vives & Heffern, 2016). Borneogrammus
was previously known to be monotypic,
known only from its type Borneogrammus
albomaculatus Vives & Heffern, 2016. In
this paper, we describe Borneogrammus
hamiguitanus sp. nov from Mt. Hamiguitan
Range Wildlife Sanctuary (MHRWS), Min-
danao Island. This is the second species for
the genus Borneogrammus and the first
record of the genus in the Philippine fauna.
MATERIAL AND METHODS
The studied material (holotype) is deposited
in the beetles collection of Daugavpils Uni-
versity, Institute of Life Sciences and Tech-
nology, Coleopterological Research Centre
(DUBC; Ilgas, Daugavpils Distr., Latvia).
The laboratory research and measurements
have been performed using Nikon AZ100,
Nikon SMZ745T and Zeiss Stereo Lumar
V12digitalstereomicroscopes, NIS-
Elements 6D software. The habitus photo-
graph was obtained with a digital camera
Canon EOS 6D with Canon MP-E65 mm
macro lens, using Helicon Focus automon-
tage and subsequently was edited with Pho-
toshop. All measurements are given in mil-
limeters.
In the present paper we followed the taxo-
nomic nomenclature provided by
Tavakilian, Chavillotte (2023).
RESULTS
Borneogrammus hamiguitanus sp. nov.
(Fig. 1)
Fig. 1. Borneogrammus hamiguitanus sp.
nov. (holotype)
Type specimens: Holotype: Male.
/Philippines: / Mindanao Isl., / Davao
Oriental, / Pujada Penins., / Mt. Hamiguitan
env., / 27.05.2023, / A.Barševskis leg. /
[handwritten]; // HOLOTYPUS:/ Borneog-
rammus / hamiguitanus sp. n. /
A.Barševskis, Ch, Torrejos det. [red label,
handwritten] (DUBC).
General distribution: Philippines: Min-
danao island.
Description. Dark - brown, elongated, with
parallel sides, elytra with coarse punctures
and two interrupted narrow bands of yellow
pubescence. Body lenght 11.3 mm. Maxi-
mal body width 2.7 mm.
Borneogrammus hamiguitanus sp. Nov. (COLEOPTERA: CERAMBYCIDAE) from mindanao
265
Fig. 2. Borneogrammus albomaculatus
Vives & Heffern 2016 (holotype (Berzak,
2023))
Head hypognathous, quadrangular, with
sparse, brown pubescence. The surface of
the head is flat, even, slightly convex to-
wards the front. Frons even, coarsely punc-
tate. Between relatively big, slightly convex
eyes weakly defined short midline, but be-
tween antennal tubercles with deep wide
impression. Cheeks smooth, shiny, slightly
extended, with coarse punctures and cov-
ered with fine, pubescence. The portions of
the face around the cheeks are covered with
relatively longer yellow-brown pubescence.
Antennae relatively longer than apex of
elytra, with dark first antennomere and
brown remaining antennomeres, covered
with very fine pubescence. Inside of anten-
nomeres with a band of longer mixed dark
and pale bristles, which extend more at the
tips of the antennae, where the antenno-
meres resemble a brush. Labrum transverse,
narrow, covered with long setae. Clypeus
transverse, very narrow, yellow, shiny, with
nummerous long setae. Mandibles sharp,
relatively massive, dark-brown.
Pronotum slightly elongate, cylindric, with
small sharp denticle at lateraal margin.
Sides of pronotum very slightly constricted
before apical margin, densely and coarsely
punctate. Dorsal disc of pronotum wis
elongate narrow middle line and two lateral
lines of yellow pubescence.
Scutellum small, slightly elongated, with
dense yellow pubescence. Pars stridens
slightly visible in the form of a smooth area
with very fine transverse microsculpture.
Elytra parallel, slightly narrowed in the
middle, each elytron is rounded at the end;
coarsely and irregularly punctate. Elytra
with a raised suture and a raised longitudi-
nal line covered with yellow pubescence,
interrupted in some places, but at apical
portion with a two additional parallel inter-
rupted rudimentary lines of small yellow
spots.
Underside of body with yellow pubescence
of different density. Legs short, massive,
dark-brown, with very fine, pubescence and
some erect hairs. Tarsomeres dark brown.
Differential diagnosis. Comparing the ex-
ternal shape of the surface of the new spe-
cies with second species of this genus Bor-
neogrammus albomaculatus Vives & Hef-
fern 2016, new species differs in different
pattern of elytra. The new species has elytra
with with a raised suture and a raised longi-
tudinal line of yellow pubescence, inter-
rupted in some places, but at apical por-
tion - a two additional parallel interrupted
rudimentary lines of small yellow spots.
Elytra of B. albomaculatus evenly covered
with small white spots.
Barševskis A., Torrejos Ch.
266
Etymology. This species is named after its
place of origin - Mt. Hamiguitan [Hamigui-
tan - hamiguitanus].
AKNOWLEDGEMENT
We wish to express our gratitude to Alex-
ander Anichtchenko (Daugavpils, Latvia)
for help in preparation of photographs of
beetles.
REFERENCES
Berzak L. 2023. Old World Cerambycidae
Catalog. http://bezbycids.com/byc
iddb/wdefault.asp?w=o [accessed:
01.11.2023].
Heffern D. 2005. Catalog and bibliography
of longhornedbeetles from Borneo
(Coleoptera: Cerambycidae) Electron-
ic Version. Retrieved from
https://www.zin.ru/animalia/coleopter
a/pdf/borneo_catalog_electronic_versi
on_2005-1.pdf
Roguet, J.-P. 2023. Lamiaires du Monde.
Lamiines of the World. Available
from: https://lamiinae.org [accessed
01.11. 2023].
Tavakilian G., Chavillotte H. 2023. Base de
données Titan sur les Cerambycidés
ou Longicornes. http://titan.gbif.fr
[accessed: 01.11.2023].
Vives E, Heffern D. 2016. Descriptions and
notes on Oriental longhorned beetles,
mostly from Borneo, Part III (Coleop-
tera, Cerambycidae, Lamiinae). Les
Cahiers Magellanes, N⁰23: 107-128.
Received: 22.03.2023.
Accepted: 08.12.2023.
