Widespread polytypic species or complexes of local species? Revising bumblebees of the subgenus Melanobombus world-wide (Hymenoptera, Apidae, Bombus)
Author
Williams, Paul H.
38A45E0C-02A8-407E-8E89-5162D454E9FE
Natural History Museum, Cromwell Road, London SW 7 5 BD, UK.
paw@nhm.ac.uk
Author
Altanchimeg, Dorjsuren
FB68F32E-4F6D-40C2-A921-20FBAD676D50
Institute of General and Experimental Biology, Peace Avenue 54 b, Ulaanbaatar 13330, Mongolia.
altanchimegd@mas.ac.mn
Author
Byvaltsev, Alexandr
B57BAD3E-9E42-4446-994E-4A45A738D404
Novosibirsk State University, ul. Pirogova 2, Novosibirsk, 630090 Russia.
byvam@yandex.ru
Author
Jonghe, Roland De
FC98CAB7-B2FF-4BEB-94FF-26F53D33CD04
Langstraat 105, B- 2260 Westerlo, Belgium.
roland.de.jonghe@telenet.be
Author
Jaffar, Saleem
77F70375-0A19-4D0E-A05A-987BB46543C0
South China Agricultural University, Guangzhou 510642, China.
saleemjaffar@stu.scau.edu.cn
Author
Japoshvili, George
CCC82B7C-A1E4-4D58-90A3-623116CBAE96
Agricultural University of Georgia, 240 Agmashenebli Alley, Tbilisi, Georgia.
g.japoshvili@agruni.edu.ge
Author
Kahono, Sih
F8513496-B409-434C-A182-4146232C89FA
Indonesian Institute of Sciences (LIPI), Jakarta, Indonesia.
sihkahono@gmail.com
Author
Liang, Huan
A99867E0-C686-4608-8DF7-0EDE8D2D57EC
Kunming Institute of Botany (Chinese Academy of Sciences), 132 Lanhei Road, Kunming, Yunnan 650201, China.
lianghuan@mail.kib.ac.cn
Author
Mei, Maurizio
82F344C7-B98A-462C-81E0-D6F3F02348D4
Università di Roma ‘ Sapienza’, Piazzale Valerio Massimo 6, Roma 00162, Italy.
maurizio.mei@uniroma1.it
Author
Monfared, Alireza
48CA77BA-8CF4-4812-89B1-696A11FEDE2D
Yasouj University, Zirtol, Yasouj, Iran.
alirezamonfared1@yahoo.com
Author
Nidup, Tshering
BE588EE1-5E2C-46CC-8907-CD344D88C869
Sherubtse College, Royal University of Bhutan, Trashigang, Bhutan.
tsheringnidup@sherubtse.edu.bt
Author
Raina, Rifat
48E5AE7A-D5DC-4549-94B7-FD8489D1EF9E
Zoological Survey of India, Pali Road, Jodhpur 342005, Rajasthan, India.
rifat72001@rediffmail.com
Author
Ren, Zongxin
27B9DD39-62A8-44D3-9D6A-E6C20D8AAA27
Kunming Institute of Botany (Chinese Academy of Sciences), 132 Lanhei Road, Kunming, Yunnan 650201, China.
renzongxin@mail.kib.ac.cn
Author
Thanoosing, Chawatat
6F4C150C-BC03-4F75-91A6-2A8AF6B5905C
Natural History Museum, Cromwell Road, London SW 7 5 BD, UK.
c.thanoosing@nhm.ac.uk
Author
Zhao, Yanhui
299C8EEA-699E-4B15-9BCD-9806E0E7EE63
Kunming Institute of Botany (Chinese Academy of Sciences), 132 Lanhei Road, Kunming, Yunnan 650201, China.
zhaoyanhui@mail.kib.ac.cn
Author
Orr, Michael C.
1E7F46C3-870E-460C-A611-BA1042ED99FB
Institute of Zoology (Chinese Academy of Sciences), 1 Beichen West Road, Chaoyang, Beijing 100101, China.
michael.christopher.orr@gmail.com
text
European Journal of Taxonomy
2020
2020-10-02
719
1
120
journal article
10.5852/ejt.2020.719.1107
7ca72f76-4fae-4305-8601-4662f4cd2b96
2118-9773
4064324
A4500016-C219-4353-B81C-5E0BB520547F
Bombus incertoides
Vogt, 1911
stat. rev.
Figs 16
,
153–156
,
201
,
212
Bombus separandus
[subsp.]
incertoïdes
Vogt, 1911: 58
by indication of
Vogt (1909)
: 61
, not infrasubspecific after
Skorikov 1923: 153
(
ICZN 1999
: Art. 45.6.4.1).
Bombus keriensis
(part) –
Reinig 1935: 341
. —
Williams 1991: 96
(non
Morawitz, 1887: 199
).
Bombus incertoides
was first treated as a separate species by
Skorikov (1923)
, without explanation, but has since been treated as a part of
B. keriensis
s. lat.
(the
keriensis
-complex) by
Reinig (1935)
and by
Williams (1998)
.
Our PTP analysis (
Fig. 10
) of coalescents in the COI gene within the
keriensis
-complex supports six species including
B. incertoides
, corroborated by differences in morphology. These species are also supported by the absence of a positive divergence-with-distance relationship among them (
Fig. 20
) (see Divergence and geographical distance, page 12).
From morphology,
B. incertoides
has enlarged male eyes and has a bright white banding pattern in the hair with (most strongly for the
keriensis
-complex) the thoracic dorsum with the posterior white band particularly narrowed by black hair anteriorly on the scutellum.
Bombus incertoides
can co-occur locally with the closely similar (but locally yellow-banded)
B. separandus
, at least in the Altai mountains of
Mongolia
.
Diagnosis
Females
Queens medium-sized body length
18–21 mm
, workers
10–12 mm
. Can be distinguished within
Mongolia
by the hair of the face black, the pale hair anteriorly on the thoracic dorsum pure white, the hair on the side of the thorax in its lower half black, the anterior half of the scutellum black, and by the hair of T4–5 red (cf.
B. sichelii
,
B. separandus
).
Males
Body length
12–15 mm
. Can be distinguished within
Mongolia
by the hair of the face black. Genitalia (
Fig. 201
) heavily sclerotised and dark, with the gonostylus longer than broad, its inner basal projection reduced to a stub (cf.
rufipes-
group,
festivus-
group,
rufofasciatus
-group); volsella with the inner distal corner broadly produced but without a narrow hook (cf.
rufipes-
group,
festivus-
group,
rufofasciatus
- group); antenna short and eye slightly enlarged relative to female eye.
Material examined
Holotype
MONGOLIA
•
♀
(queen),
holotype
of
Bombus separandus incertoides
Vogt, 1911
by monotypy (
Williams, 1991
); “N.[orth]” (Leder’s material from northern Mongolia is likely to have come from
a site between Kyakhta and
Ulaanbaatar
:
Williams
et al.
2012a
); “[18]92”; H. Leder leg.;
RMNH
(examined
PW
).
Material sequenced
(
9 specimens
)
MONGOLIA
•
1 ♀
(queen);
Tov
,
Tuul river
;
47.8118° N
,
106.6139° E
;
24 Jun. 2005
;
D. Altanchimeg
leg.;
NHMUK
seq: NHMSR2;
DA
:
ML148
•
1 ♂;
Khovd
,
Monkhkhairkhan
;
46.9676° N
,
91.6496° E
;
9 Aug. 2014
;
D. Altanchimeg
leg.;
NHMUK
seq: NHMSR6;
DA
:
ML173
•
1 ♀
(queen);
Arkhangai
,
Bat-olziit
;
46.7974° N
,
101.7551° E
;
18 Jun. 2014
;
R. DeJonghe
leg.; BOLD seq: 6880B06;
RDJ
:
ML490
•
1 ♂;
Arkhangai
,
Chuluut Khujirt Mts
;
47.4418° N
,
100.3643° E
;
7 Aug. 2018
;
R. DeJonghe
leg.; BOLD seq: 6880B07;
RDJ
:
ML491
•
1 ♂; same collection data as for preceding; BOLD seq: 6880B08;
RDJ
:
ML492
•
1 ♀
(worker);
Arkhangai
,
Chuluut Khujirt Mts
;
47.2697° N
,
100.3387° E
;
8 Aug. 2018
;
R. DeJonghe
leg.; BOLD seq: 6880B09;
RDJ
:
ML493
•
1 ♂;
Arkhangai
,
Chuluut Khujirt Mts
;
47.2700° N
,
100.3387° E
;
9 Aug. 2018
;
R. DeJonghe
leg.; BOLD seq: 6880B10;
RDJ
:
ML494
•
1 ♂; same collection data as for preceding; BOLD seq: 6880B11;
RDJ
:
ML495
•
1 ♀
(queen);
Khovsgol
,
Khatgal
;
50.4815° N
,
100.2170° E
;
7 Jun. 2015
;
R. DeJonghe
leg.; BOLD seq: 6880C04;
RDJ
:
ML501
.
Global distribution
(Mongolian mountain species)
North Asia
:
MONGOLIA
. (DA, NHMUK, RMNH, PW, RDJ.) This species is widespread but not common (
Fig. 212
).
Behaviour
Expected to be food-plant generalists but no records. The male mate-searching behaviour is unknown.