3.step 1 Species breakdown
He’s got a primary face and you can tongue duration in accordance with most other bumble bees. The newest upperside from a lot of brand new gut are black colored, but there is however an original, wide set of golden yellow locks round the avenues 2 and 3 (Figure step one). Phase 5 is black colored or pale yellow-brown.
New men are equivalent when you look at the along with to the female, although they normally have a lot more reddish hairs to the deal with. They are advanced in dimensions anywhere between queens and pros, and also have seemingly brief antennae (COSEWIC 2015). More resources for morphology, pick Williams ainsi que al. (2014).
The fresh Red-colored-banded Bumble-bee is formerly considered conspecific into Western Bumble Bee ( Bombus occidentalis) however, Bertsch et al. (2010) and you can Williams mais aussi al. (2012) claimed mitochondrial CO1 sequences sufficiently divergent to consider the 2 ) discover uniform morphological and you will unit emails help a couple of line of variety.
Profile step one. King Red-colored-banded Bumble bee for the willow, Ontario. T2 and you can T3: Intestinal tergites dos and you can step three. Photo: Sarah Johnson. Used in combination with permission.
Shape step 1 illustrates a picture of an almost-upwards off a king red-banded Bumblebee on the willow, Ontario. It means that brand new gut of one’s Yellow-banded Bumblebee is black and there is a broad set of golden yellow round the its areas 2 and you can 3 that have avenues 5 becoming black.
3.dos Species population and you can shipping
The brand new Yellow-banded Bumble bee happen merely inside the United states. It range out-of Georgia north to help you Labrador, and you can western through the northern All of us and you may Canada in order to Montana, United kingdom Columbia (BC), the newest Northwest Territories (NT), therefore the southeastern Yukon (YT) (Figure 2). Its north limit roughly pursue latitudinal treeline. Before info regarding Alaska (elizabeth.g., as the shown inside COSEWIC (2015)) have already been reassessed, plus the Red-colored-banded Bumble bee is no longer said to be part of one state’s fauna (Sikes and you may Rykken 2020). Approximately fifty-60% of the around the world variety is during Canada (COSEWIC 2015).
territory except Nunavut (NU) (COSEWIC 2015), quatre façons de trouver une femme though it might occur on the unsurveyed southwestern part of this area (Contour 2). On YT it is missing west of the fresh Mackenzie Hills, however it range extensively on central section of BC (COSEWIC 2015).
Profile 2. Global listing of Red-banded Bumble-bee. Observations (art gallery specimens and photo confirmed for the iNaturalist (2020) and you can Bumble-bee View (2019)) since the 2009 was illustrated by the dark blue dots. Northern limitation away from diversity unsure, especially in central Canada. Investigation of L. Richardson and S. Cannings, chart by B. Fournier (Bodies away from Northwest Regions). Dataset isn’t comprehensive; certain specimens (e.grams. those in Prescott et al. 2019) just weren’t integrated since research is actually acquired once .
Contour 2 shows the worldwide range of the fresh Red-banded Bumblebee. The number extends regarding Georgia north to Labrador and west courtesy brand new northern All of us and Canada so you’re able to Montana, United kingdom Colombia plus the Northwest Regions. It occurs in almost any Canadian province and you can area but Nunavut. The latest observations of types ranging from 1824 and you may 2008 is actually exhibited that have white dots and the findings of your own variety anywhere between 2009 and you will 2019 try shown that have navy blue dots.
The Red-banded Bumble bee was previously perhaps one of the most popular bumble bees off eastern and boreal Canada however, its abundance southern regarding the latest boreal countries started initially to lowering of the early 1990’s. Development analysis try incomplete, nevertheless better readily available study place suggests relative abundance (Yellow-banded Bumble-bee prior to most of the bumble bees) during the 10 local internet round the southern area (sub-boreal) Canada (away from 100 Kilometer Home, BC, and you can Edmonton eastern due to Ottawa and Montreal to your Atlantic Provinces) -2013 (Dining table dos from inside the COSEWIC 2015). In general, this new Reddish-banded Bumble bee possess was able their wide range regardless of the refuses; the only Canadian different are extreme southwestern Ontario (i.e. south and you will west of Kitchener-Waterloo), where in fact the kinds try always uncommon and pair if any has come found given that 2004 (Colla and Dumesh 2010; COSEWIC 2015, iNaturalist 2020).