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aerograf ( 07/02/2017 )

Bombus haemorrhoidalis Smith
hæmorrhoidalis [haemorrhoidalis] Smith, 1852a:43
orientalis Smith, 1854:402, examined
assamensis Bingham, 1897:550, examined
montivolans Richards, 1929c:382, examined
semialbopleuralis (Tkalcu, 1974b:322 [Orientalibombus])
cinnameus (Tkalcu, 1989:47 [Orientalibombus]) examined

TAXONOMIC STATUS: Several of these nominal taxa have been treated as separate species, most recently in the case of B. montivolans [Burma to southern China] (e.g. Tkalcu, 1968b, 1989). However, aside from differences in colour pattern, they are all closely similar in morphology with a range of variation (Williams, 1991 [pdf]). Until more evidence to the contrary is available from critical studies of patterns of variation, I shall treat them as parts of a single variable species.

DISTRIBUTION: Oriental Region.

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