Cerophysa aseanica, a new species of Chrysomelidae from Thailand (Coleoptera: Chrysomelidae: Galerucinae)

2 Pages·2001·0.09 MB·English

by  Mohamedsaid, M S

THE RAFFLES BULLETIN OF ZOOLOGY2001 49(2): 251-252
© National University ofSingapore
CEROPHYSA ASEANICA, A NEW SPECIES OF CHRYSOMELIDAE FROM THAILAND
(COLEOPTERA: CHRYSOMELIDAE: GALERUCINAE)
Mohamed S. Mohamedsaid
Centrefor Insect Systematics, Universiti Kebangsaan Malaysia, 43600Bangi, Malaysia
ABSTRACT.- Cerophysaaseanica, anewspeciesofchrysomelidbeetleisdescribedandillustratedfrom
Thailand. Two new combinations are proposed: Cerophysa doisuthepica (Kimoto), new combination,
Cerophysa laosensis (Kimoto), new combination.
KEY WORDS. - Thailand, Chrysomelidae, Galerucinae, new species, Cerophysa aseanica.
INTRODUCTION Thailand, 18May.1993,coIl.S.Ohmomo(InstituteofSystematic
Entomology, Hokkaido University, Japan).
Kimoto (1989) in his monograph on the Galerucinae from
Description. - Dorsal surfacereddish brown, antennae and
Thailand,Cambodia,LaosandVietnamlistedsevenspecies
ventral surface brownish.
of Taumacera Thunberg, including two newly described
species,fournewlyandonepreviously(Gressitt& Kimoto,
Head with vertex impunctate, alutaceous; frontal tubercles
1963) transferred species from Cerophysa to Taumacera.
broadly triangular, contiguous; clypeus triangularly raised;
Mohamedsaid(1993)hasshownthatTaumaceradiffersfrom
labrum transverse, sparsely covered with long hairs, the
Cerophysainhavingprocoxalcavitiesclosedposteriorlyand
apical margin truncate; maxillary palpi with penultimate
the male with metasternal lobe. In the key to galerucine
segment swollen, the apical segment small, connical. Eyes
genera provided by Gressitt & Kimoto (1963) and Kimoto
small, with interocular space twice as broad as transverse
(1989), the name Taumacera used in couplet 54 and 38,
diameterofeacheye. Antennaeextendedtobasalone-fourth
respectively,shouldbechangedtoCerophysa, assuggested
ofelytra;segment1club-shaped;segment2shortest,aslong
by Reid (1999).
asbroad;segment3cylindrical,oneandone-halfaslongas
2;segments4-7subtriangular,graduallybroadenedatapex;
Therefore, the following two new combinations are
segment 8 extremely large, 1.8 times as long as broad,
proposed: Cerophysa doisuthepica (Kimoto), new
cylindrical, the innersurface with two excavations, a small
combination, and Cerophysa laosensis (Kimoto), new
oblong-shaped in the middle and a large triangular-shaped
combination; andfive species are transferredbacktogenus
in the apical half; segment 9 subcylindrical, broadened at
oftheiroriginaldescriptions: CerophysabiplagiataDuvivier,
apex;segment10cylindrical,twiceaslongasbroad;segment
Cerophysa coomani Laboissiere, Cereophysa metallica
11 narrower than 10, pointed. Pronotum oblong, 1.2 times
Laboissiere, Cerophysa pulchella Laboissiere, and
asbroadaslong,strongly,transverselydepressedinmiddle;
Cerophysa siamensis Jacoby. In addition, a new species of
sides rounded, broadest in middle; anterior border
Cerophysa is described and illustrated from Thailand,
unmargined,lateralandposteriorbordersmargined;anterior
makingthetotaloffourspeciesforthecountryandeightfor
margin concave, posterior margin rounded posteriorly;
the Indochinese region. Type specimen is deposited in the
surface opaque, impunctate, alutaceous; anterior and
Institute ofSystematic Entomology, Hokkaido University,
posterior angles with seta-bearing pores. Procoxal cavities
Japan.
open posteriorly. Scutellum triangular, impunctate. Elytra
opaque,subparallel-sided,roundedatapex;surfacesmooth,
Cerophysa aseanica, new species impunctate. Protarsus with the first·segment enlarged,
widenedatapex,slightlylongerthanbroad;mesotarsuswith
(Fig. 1)
thefirstsegmentelongate,widenedatapex;metatarsuswith
Material examined. - Holotype - male, Maemo, Lampang, N. the first segment cylindrical, 4 times as long as broad, and
Received 23 Nov 2000 Accepted 21 May 2001
251
Mohamedsaid: New species ofChrysomelidae from Thailand
as long as the remaining segments combined. Tarsal claws
appendiculate.Abdomenwithapicalstemitelongerthantwo
preceding abdominal sternites combined, the apical margin
entire. Length 7.2 mm.
Female. Unknown, but the antennae normal, without
modified segment.
Etymology. - Thenew speciesisderivedfromthe acronym
ofthe Association ofSouth East Asian Nations (ASEAN).
Remarks. - Cerophysa doisuthepica (Kimoto) differs from
thenewspeciesinhavingyellowishcoloration,andpronotum
transverse, 1.7 times as broad as long, with sides narrow
from apex to base, and surface with a deep subbasal
transverse depression.
ACKNOWLEDGEMENT
The author would like to thank Dr. Haruo Takizawa, for
sending this interesting specimen.
LITERATURE CITED
Gressitt, J. L. & S. Kimoto, 1963.TheChrysomelidae (Coleopt.)
ofChina and Korea. Part 2. Pacific Insects Monograph, IB:
301-1026.
a
Kimoto, S., 1989. Chrysomelidae (Coleoptera) of Thailand,
Fig. 1. Cerophysa aseanica, new species. a) Habitus; b) Male
Cambodia, LaosandVietnam. IV. Galerucinae. Esakia, (27):
antenna.
1-241.
Mohamedsaid, M. S., 1993. On the genus Cerophysa Chevrolat
and Taumacera Thunberg from Peninsular Malaysia. Genus,
4: 113-119.
Reid, C. A. M., 1999. Reappraisal of the genus Taumacera
Thunberg, with descriptions oftwo new species from South
East-Asia (Coleoptera: Chrysomclidae: Galerucinae).
Australian Journal ofEntomology, 38: 1-9.
252