Description of two new species of Glenea Newman, 1842 from southern India and reinstatement of Glenea vestalis Heller, 1934 (Coleoptera: Cerambycidae: Lamiinae: Saperdini)
Author
Hiremath, Sangamesh R.
Author
Lin, Mei-Ying
text
Journal of Natural History
2021
2021-06-11
55
3 - 4
205
245
http://dx.doi.org/10.1080/00222933.2021.1900442
journal article
55744
10.1080/00222933.2021.1900442
bd94685b-3e7b-43fb-8da4-2736a02f9d65
1464-5262
5473739
Glenea vestalis
Heller, 1934
stat. reinstated
(
Figures 19–25
)
Glenea vestalis
Heller, 1934: 284
,
Figure 2
. TL:
Philippines
. TD: SMTD.
Glenea pulchella
:
Aurivillius 1926: 111
(partim).
Glenea
(
Glenea
)
pulchella
:
Breuning 1956a: 195
(partim).
Glenea
(
Glenea
)
pulchella
m.
postmediopunctata
Breuning, 1956a: 196
. [Unavailable name, infrasubspecies from
Tonkin
,
Vietnam
]
Glenea
(
Glenea
)
pulchella
m.
preapiceconjuncta
Breuning, 1956a: 197
. [Unavailable name, infrasubspecies from Ceram,
Indonesia
]
Glenea
(
Glenea
)
pulchella
m.
transversevittata
Breuning, 1956a: 197
. [Unavailable name, infrasubspecies from Fundortangabe]
Glenea
(
Glenea
)
pulchella
m.
vestalis
:
Breuning 1956a: 197
.
Glenea
(
Glenea
)
pulchella
:
Hüdepohl 1996: 18
. [Misidentification]
Type specimen examined
Holotype
(
Figure 19
(a–c)),
♀
,
Philippines
,
Arorey
, 1923.VIII (
SMTD
).
Other Specimens examined
Philippines
:
1 ♂
, ‘paratype’ of
Glenea
(
Glenea
)
pulchella
m.
postmediopunctata
Breuning
, 1956
,
Dapitan
,
Mindanao
,
Baker
(
MHNL
,
ex
collection
P. Lepesme
);
1 ♂
, ‘paratype’ of
Glenea
(
Glenea
)
pulchella
m.
postmediopunctata
Breuning
, 1956
,
Zamboanga
,
Mindanao
,
Baker
(
MHNL
,
ex
collection
P. Lepesme
);
1 ♀
, ‘paratype’ of
Glenea
(
Glenea
)
pulchella
m.
postmediopunctata
Breuning, 1956
,
Surigao
,
Mindanao
,
Baker
(
NHMB
(Frey));
1 ♂
,
Philippines
(
BMNH
);
1 ♂
,
2 ♀♀
,
Zamboanga
Mindanao
,
Baker
(
NMNH
);
2 ♀♀
, Island
Samar
,
Baker
(
NMNH
);
4 ♂♂
,
2 ♀♀
, Kolambugan,
Mindanao
,
Baker
(
NMNH
);
1 ♂
,
1 ♀
,
Davao
Mindanao
,
Baker
(
NMNH
);
2 ♂♂
,
2 ♀♀
,
Mt
. Makiling,
Luzon
,
Baker
(
NMNH
);
2 ♂♂
,
4 ♀♀
,
Dapitan
,
Mindanao
,
Baker
(
NMNH
);
1 ♂
,
1 ♀
,
Butuan
Mindanao
,
Baker
(
NMNH
);
1 ♀
,
Surigao
,
Mindanao
(
NMNH
,
Tippmann Coll
. ’57, 213112);
2 ♀♀
,
Philippines
,
Ch Semper
(
MNHN
);
1 ♂
,
Mindanao
(
Figure
20
(a,b),
MNHN
);
3 ♀♀
,
Mindanao
, 1903–1904, J.
Waterstradt
(
MNHN
);
1 ♀
,
Philippines, N
.
Luzon
,
Cagayan
,
Sta
.
Ana
,
June 2014
, local coll. (
DHCO
).
Figures 19–22.
Glenea vestalis
Heller, 1934
, habitus. 19(a–c) Holotype, female, from the Philippines: 19 (a) Dorsal view, 19(b) lateral view, 19(c) labels. 20(a–b) Male, from Philippines, Mindanao: 20(a) dorsal view, 20(b) head, frontal view. 21(a–b) ‘Type’ of
Glenea
(
Glenea
)
pulchella
m.
preapiceconjuncta
Breuning, 1956, female, from Indonesia, Moluccas, Ceram (= Moluques, Seram): 21(a) dorsal view, 21(b) labels. 22(a–b) ‘Type’ of
Glenea
(
Glenea
)
pulchella
m.
postmediopunctata
Breuning, 1956, female, from Vietnam, Tonkin, Hoa-Binh: 22(a) dorsal view, 22(b) labels. Scale bar: 2 mm. Figures 19(c), 20(b), 21(b) and 22(b) not to scale.
Malaysia
1 ♀
,
Java
(
Meuwen Bay
) (
MNHN
);
2 ♀♀
, ‘paratypes’ of
Glenea
(
Glenea
)
pulchella
m.
preapiceconjuncta
Breuning, 1956
,
Borneo
,
Sandakan
,
Baker
(
NHMB
(Frey));
1 ♀
,
Malacca
,
Perak
,
W. Doherty
(
MNHN
).
Indonesia
1 ♀
(
Figure
21
(a,b)), ‘type’ of
Glenea
(
Glenea
)
pulchella
m.
preapiceconjuncta
Breuning
, 1956
,
Moluccas
,
Ceram
(=
Moluques
,
Seram
) (
BMNH
,
ex
Fry Coll
, 1905.100);
1 ♀
,
Maluku
,
Seram
,
35 km
E Pasahari
,
Unit
O,
24–30 October 1998
, leg. J.
Horák
(
DHCO
)
.
Vietnam
1 ♀
(
Figure
22
(a,b)), ‘type’ of
Glenea
(
Glenea
)
pulchella
m.
postmediopunctata
Breuning
, 1956
,
Tonkin
,
Hoa-Binh
, A.
de Cooman
(
MHNL
,
ex
Coll. Lepesme
, 2002,
ex
Coll. J. Clermont
)
.
Description
complementary to
Heller (1934)
and
Breuning (1956a)
.
Male genitalia
(
Figures 23–24
)
Tegmen length about
3.5 mm
; lateral lobes extremely long and slender, each about
1.8 mm
long and
0.05 mm
wide, apex covered with short, reddish brown setae; basal piece bifurcated distally; median lobe plus median struts slightly curved, much shorter than tegmen (22:35); median struts about two-thirds of whole median lobe in length; dorsal plate slightly shorter than ventral plate; ventral edge of median orifice slightly pointed; median foramen elongated; internal sac about 3 times as long as median lobe plus median struts, with four pieces of basal armature and three rods; rods about 1.0 mm, shorter than one-third of tegmen. Tergite VIII elongate, U-shaped with its apical margin weakly notched in middle, integument with short setae. Ventrite IX subequal to ringed part of tegmen in length.
Female genitalia
(
Figure 25
): Spermatheca elongate, with its stalk curved at base and capsule oval. Spermathecal gland originating from a distinctly sclerotised ringed plate (
Figure 25
). Tignum much longer than abdomen. In our observation, tignum
8.5 mm
for an adult with a
5.3 mm
long abdomen in ventral view.
Diagnosis
This species is very similar to
G. pulchella
Pascoe
at first glance, with body reddish brown and similar yellow-haired maculae. However, they differ from each other in the absence vs presence of the small spot at the centre of apical half. Male genitalia exhibit distinct differences also: lateral lobes shorter than half of tegmen and apex of tergite VIII truncated in
G. pulchella
(
Figures 15 and 16
) vs lateral lobes subequal to half of tegmen and apex of tergite VIII weakly notched at middle in
G. vestalis
(
Figures 23 and 24
).
Distribution
Philippines
,
Malaysia
,
Indonesia
,
Vietnam
.
Figures 23–25.
Genitalia of
Glenea vestalis
Heller, 1934
. 23–24. Male, from Philippines, Mindanao. 23 (a–c) Male genitalia: 23(a) ventral view, 23(b) lateral view, 23(c) dorsal view. 24. Tergite VIII, sternites VIII and IX in dorsal view. 25. Spermatheca, showing spermathecal duct and origin of spermathecal gland from strongly sclerotised ringed plate. Scale bar: 1 mm. Figures 24 and 25 not to scale.
Remarks
Breuning (1956a)
treated
G. vestalis
as a morph of
G. pulchella
, and subsequent authors considered them synonyms (
Hüdepohl 1996
;
Tavakilian and Chevillotte 2020
). However, they are two distinct species, and
G. vestalis
is herein reinstated from synonymy with
G. pulchella
.
Aurivillius (1926: 111)
wrote: ‘Specimens from Mindanao have a small sulphur yellow lateral dot behind the middle of elytra; this dot is wanting in specimens from Borneo and
Malacca
but still more developed in a specimen from Ceram’. Examination of specimens from these localities by the second author revealed that specimens referred to as having a ‘small sulphur yellow lateral dot’ behind the middle of the elytra, from
Philippines
and Ceram (now
Indonesia
,
Maluku
, Seram), are
G. vestalis
, while the specimens from Borneo and
Malacca
, in which ‘this dot is wanting’, are
G. pulchella
.
Breuning (1956a)
described three morphs, which are all infrasubspecific. The second author examined the ‘type’ and ‘paratypes’ of these morphs; the ‘type’ of
Glenea
(
Glenea
)
pulchella
m.
preapiceconjuncta
Breuning, 1956 (
Figure 21
(a,b)) from ‘
Insel
Ceram im Britischen Museum’, and the ‘type’ of
Glenea
(
Glenea
)
pulchella
m.
postmediopunctata
Breuning, 1956 (
Figure 22
(a,b)) from ‘
Tonkin
: Hoa-Binh in coll. Lepesme’ are both females and are both considered
Glenea vestalis
Heller, 1934
based on the presence of a postmedial, sulphur yellow lateral dot on the elytra. The ‘type’ of
Glenea
(
Glenea
)
pulchella
m.
transversevittata
Breuning, 1956, based on ‘ein female ohne Fundortangabe in der Sammlung Itzinger’, could not be examined; however, in all probability it belongs to
G. vestalis
, since
Breuning (1956a: 197)
compared it with m.
postmediopunctata
and arranged it between m.
preapiceconjuncta
and m.
vestalis
Hell.