Bombus neoboreus Sladen

• Published in: Science of The Total Environment
• Main Authors: Williams, Paul H., Berezin, Mikhail V., Cannings, Sydney G., Cederberg, Björn, Ødegaard, Frode, Rasmussen, Claus, Richardson, Leif L., Rykken, Jessica, Sheffield, Cory S., Thanoosing, Chawatat, Byvaltsev, Alexandr M.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2019
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Hymenoptera; Apidae; Bombus; Bombus neoboreus; Arctic; Bernard Harbour; Hudson Bay; Northwest Territories; Nunavut
• Online Access: https://doi.org/10.5281/zenodo.5584692; http://treatment.plazi.org/id/AC4D691FFF805E26FF685B3B742AFC24

6. Bombus neoboreus Sladen (Figs. 89‒103, 134, 143, 145, 148) B. strenuus Cresson 1863:102 (not of Harris 1776:131, = B. lapidarius (Linnaeus)), type-locality citation ‘Youcon River, Arctic America, and Hudson’s Bay Territory’. Lectotype queen (#4706) by designation of Cresson 1916:131, ANSP examined PW, ‘H. B. T.’ [Hudson Bay Territory] (? Nunavut, Canada). Bombus neoboreus Sladen 1919:28, type-locality citation ‘Bernard harbour, Northwest Territories’. Lectotype queen (#4406) by designation of Milliron 1973:110, CNC examined PW, ‘Bernard / Harbour’ (formerly NWT, now Nunavut, Canada). Synonymised with Megabombus strenuus (Cresson) by Milliron 1973:108). [ Bombus neoboreus (strenuous) Cresson; Kearns & Thomson 2001:97, incorrect subsequent spelling.] Taxonomy and variation. Bombus neoboreus has long been treated as including B. kluanensis but has been recognized as separate from evidence of a species coalescent in the COI gene (Williams et al. 2015; Fig. 9), differences in morphology and differences in the PEPCK gene (Williams, Cannings, et al. 2016). Variation in the colour pattern has been illustrated and analysed previously (Williams et al. 2014; Williams et al. 2015). The pale colour pattern B. strenuus Cresson was described as having the hair of the dorsal part of the side of the thorax, the scutellum, and T1‒3 extensively yellow (Figs. 90‒93, 101‒102). This is the most widespread colour pattern of the species. The principal variation is in whether T5 is predominantly orange (Figs. 90, 92‒93, 101‒102) or predominantly black (Fig. 91), although there are usually a few orange hairs present. Later, the darker colour pattern B. neoboreus was described, which has the dorsal part of the side of the thorax, the scutellum, and T3 extensively black (Figs. 94‒100, 103). The darkest females have the top of the head, side of the thorax, scutellum, middle third of T1, and T3‒5 black (Fig. 97). There are especially many individuals of the dark colour pattern neoboreus s. str. in collections from Nunavut: near ...