The hair on the head is mostly black, the thorax is dorsally black and reddish-yellow on the sides. The first two segments of the abdomen are yellow and the rest are black. The legs are black and the wings are sooty colored, but "transparent enough for print to be easily read through them".[1]
The first public digital record of Bombus irisanensis was added to iNaturalist in June 2019 by Paul Engler.[5] The record may be the first documentation of its continued existence since the 1990s.[2]
Several published articles note it was assessed as "Vulnerable" on the IUCN Red List.[2][6] It was not listed on the IUCN website as of December 2020[update].[7]
References
^ abcdefCockerell, T. D. A. (1910). "Descriptions and Records of Bees". The Annals and Magazine of Natural History; Zoology, Botany, and Geology. Series 8, Vol 5, No. 28. Taylor and Francis, Ltd.: 416. Retrieved 5 December 2020.