3.1 Kinds description
He has got a short deal with and tongue size according to really most other bumble bees. The latest upperside away from a lot of new gut try black, but there’s a distinctive, wide band of golden yellow hair across areas dos and you can step three (Profile step 1). Segment 5 was black or pale-yellow-brownish.
The latest males is equivalent from inside the along with on people, while they often have so much more purple hairs into the face. He is intermediate in dimensions ranging from queens and you can gurus, while having seemingly brief antennae (COSEWIC 2015). More resources for morphology, find Williams et al. (2014).
The fresh new Red-banded Bumble bee try previously experienced conspecific toward Western Bumble Bee ( Bombus occidentalis) however, Bertsch et al. (2010) and you will Williams mais aussi al. (2012) claimed mitochondrial CO1 sequences sufficiently divergent to consider the two ) discovered consistent morphological and you will unit letters support a couple collection of kinds.
Figure step 1. Queen Purple-banded Bumble bee into willow, Ontario. T2 and you will T3: Abdominal tergites 2 and you can 3. Photo: Sarah Johnson. Used in combination with consent.
Profile 1 portrays an image of a near-up out-of a king purple-banded Bumblebee for the willow, Ontario. It shows that the fresh instinct of the Red-colored-banded Bumblebee is black as there are an over-all selection of golden-yellow around the their avenues 2 and you will step 3 having segments 5 are black colored.
step three.dos Types inhabitants and you may shipping
The new Red-banded Bumble-bee happen only when you look at the America. It ranges out of Georgia north to Labrador, and you may western from north United states and Canada to help you Montana, Uk Columbia (BC), the Northwest Areas (NT), therefore the southeastern Yukon (YT) (Contour 2). Its northern maximum more or less employs latitudinal treeline. Before records out-of Alaska (age.g., given that shown when you look at the COSEWIC (2015)) being reassessed, as well as the Yellow-banded Bumble-bee has stopped being considered part of one to state’s fauna (Sikes and Rykken 2020). Approximately 50-60% of its internationally diversity is within Canada (COSEWIC 2015).
area except Nunavut (NU) (COSEWIC 2015), though it may occur on the unsurveyed southwest place of these area (Profile dos). On the YT it’s missing to the west of the brand new Mackenzie Hills, however it ranges extensively into the central part of BC (COSEWIC 2015).
Profile 2. Around the world listing of Reddish-banded Bumble bee. Observations (art gallery specimens and you will images verified inside the iNaturalist (2020) and you may Bumble bee Watch (2019)) just like the 2009 was represented of the navy blue dots. Northern limitation from diversity not sure, especially in main Canada. Analysis regarding L. Richardson and you may S. Cannings, chart by the B. Fournier (Authorities away from Northwest Territories). Dataset is not full; specific specimens (elizabeth.grams. those in Prescott mais aussi al. 2019) just weren’t incorporated just like the analysis was received after .
Profile dos reveals the global set of brand new Yellow-banded Bumblebee. The number stretches from Georgia northern in order to Labrador and you will western through the north Us and you will Canada so you can Montana, United kingdom Colombia as well as the Northwest Areas. It happens in almost any Canadian state and you may area but Nunavut. The newest findings of one’s kinds between 1824 and you can 2008 is actually displayed with light dots and observations of one’s varieties between 2009 and you will 2019 was showed with deep blue dots.
The latest Reddish-banded Bumble bee was once one of the most preferred bumble bees from eastern and you may boreal Canada however, the wealth south of the new boreal places started initially to reduction in the early 90s. Pattern studies was incomplete, although most readily useful available data set reveals relative wealth (Yellow-banded Bumble-bee according to all of the bumble bees) on ten local sites across southern area (sub-boreal) Canada (of 100 Kilometer Home, BC, and Edmonton east courtesy Ottawa and you may Montreal on the Atlantic Provinces) -2013 (Dining table dos from inside the COSEWIC 2015). Overall, the Purple-banded Bumble-bee have was able their wide range regardless of the refuses; one Canadian difference is generally high southwestern Ontario (we.e. south and you will west of Kitchener-Waterloo), where in fact the varieties are constantly unusual and you will few or no provides started discovered while the 2004 (Colla and you will Dumesh 2010; COSEWIC 2015, iNaturalist 2020).