Bombus bicoloratus Smith
bicoloratus Smith, 1879:132, examined
kulingensis Cockerell, 1917:266, examined
tajushanensis Pittioni, 1949:244
12 names

TAXONOMIC STATUS: B. kulingensis has been regarded as a species separate from B. bicoloratus (e.g. Williams, 1998).

B. bicoloratus and B. kulingensis show variation in the pattern of the teeth on the inner process of the gonostylus and on the outer margin of the penis valve head, and more especially in how pronounced is the outer lateral shoulder on the penis valve just anterior to the ventro-lateral process. However, from the material examined, I believe that B. kulingensis and B. bicoloratus are morphologically closely similar. Furthermore, evidence from comparisons of DNA sequences from five genes is consistent with the two taxa being conspecific (Cameron et al., 2007 [pdf]).

DISTRIBUTION: Oriental Region.

Bombus diversus Smith
diversus Smith, 1869:207, examined
tersatus Smith, 1869:207, examined
6 names

NOMENCLATURE: Tkalcu (1965) first explicitly regarded B. diversus and B. tersatus as conspecific and, following the Principle of First Reviser (ICZN, 1999: Article 24), chose B. diversus as the valid name for the species.

DISTRIBUTION: Oriental, Japanese, Palaearctic Regions.

Bombus irisanensis Cockerell
irisanensis Cockerell, 1910a:416, examined

DISTRIBUTION: Oriental Region.

IUCN CONSERVATION STATUS: Preliminary assessment as VULNERABLE (Williams & Osborne, 2009) by criterion A2 (IUCN, 2001, 2008) that no records are known since 1983.

Bombus koreanus (Skorikov)
koreanus (Skorikov, 1933a:59 [Hortobombus])
pekingensis Bischoff, 1936:21, examined
?notocastaneus Tkalcu, 1961a:52
4 names

TAXONOMIC STATUS: B. notocastaneus was described from a single male from Hubei. From the description, it appears most likely to be conspecific with B. koreanus. For a description of the variation in this species see Huang et al. (2014).

DISTRIBUTION: Oriental, Palaearctic Regions.

Bombus longipes Friese
longipes Friese, 1905:511
hummeli Bischoff, 1936:18, examined

DISTRIBUTION: Oriental Region, Palaearctic border.

Bombus melanopoda Cockerell
melanopoda Cockerell, 1910a:416, examined

DISTRIBUTION: Sumatran Region.

IUCN CONSERVATION STATUS: Preliminary assessment as presumed EXTINCT (Williams & Osborne, 2009) because it is unrecorded (IUCN, 2001, 2008) since Cockerell (1910) from the specimen of probably 1878-1883. Like most other Sumatran bumble bees (with the notable exception of the extensively greyish-white queens of B. senex, see Sianturi et al., 1995), the holotype of B. melanopoda is almost entirely black. It is likely that females of this species would be particularly easily mistaken for black individuals of B. senex (although males of B. melanopoda might be paler, as for B. koreanus).

Bombus religiosus (Frison)
religiosus (Frison, 1935:344 [Bremus]) examined

DISTRIBUTION: Oriental Region.

Bombus securus (Frison)
securus (Frison, 1935:346 [Bremus]) examined
yuennanicus Bischoff, 1936:23, examined

DISTRIBUTION: Oriental Region.

Bombus senex Vollenhoven
Senex Vollenhoven, 1873:229

DISTRIBUTION: Sumatran Region.

Bombus supremus Morawitz
supremus Morawitz, 1887:196
linguarius Morawitz, 1890:351

DISTRIBUTION: Oriental Region.

Bombus tichenkoi (Skorikov)
[saltuarius (Skorikov, [1923]:156 [Hortobombus]) published without description]
[tichenkoi (Skorikov, [1923]:156 [Hortobombus]) published without description]
tichenkoi (Skorikov, 1926:115 [Hortobombus])
[pseudoligusticus (Skorikov, 1926:116 [Hortobombus]) infrasubspecific]
saltuarius (Skorikov, 1931:235 [Hortobombus])
sushkini (Skorikov, 1931:235 [Hortobombus]) examined
kurilensis Sakagami, 1954:92
pseudoligusticus Lelej & Kupianskaya, 2000:9

TAXONOMIC STATUS: B. sushkini and B. saltuarius have been regarded both as conspecific (Bischoff, 1936) and as separate species (Skorikov, 1931; Tkalcu, 1974a). B. saltuarius is said to be differentiated by the morphology of the male genitalia (Skorikov, 1931), although I have seen no males of this species. More evidence is awaited.

DISTRIBUTION: Palaearctic, Oriental Regions, Arctic borders.

Bombus trifasciatus Smith
trifasciatus Smith, 1852a:43, examined
wilemani Cockerell, 1911:100, examined

TAXONOMIC STATUS: This species is now recognised as a separate species from gene data by Hines & Williams (2012) and by Huang et al. (2015).

DISTRIBUTION: Oriental Region.

Bombus ussurensis Radoszkowski
Ussurensis Radoszkowski, 1877b:196
[ussuriensis Morawitz, 1881:254, incorrect subsequent spelling]

DISTRIBUTION: Oriental, Japanese, Palaearctic Regions.

Bombus eximius Smith
eximius Smith, 1852b:47, examined
latissimus Friese, 1910:405

DISTRIBUTION: Oriental Region.

Bombus festivus Smith
festivus Smith, 1861:152, examined
atrocinctus Smith in Horne, 1870:193, examined
terminalis Smith in Horne, 1870:193, examined

DISTRIBUTION: Oriental Region.