3.step 1 Types breakdown
He’s an initial face and you may language duration prior to really other bumble bees. The new upperside out-of much of the fresh new instinct try black, but there is an original, greater group of golden-yellow tresses round the segments 2 and you may 3 (Figure step one). Segment 5 is actually black otherwise pale yellow-brown.
The new males are similar within the colour on ladies, while they normally have more reddish hairs to your face. He could be advanced in dimensions between queens and you will pros, and then have apparently quick antennae (COSEWIC 2015). For additional information on morphology, find Williams ainsi que al. (2014).
This new Yellow-banded Bumble bee are earlier thought conspecific for the Western Bumble Bee ( Bombus occidentalis) however, Bertsch et al. (2010) and you may Williams et al. (2012) stated mitochondrial CO1 sequences well enough divergent to take on both ) receive consistent morphological and you will molecular characters support a couple line of species.
Contour step 1. King Yellow-banded Bumble bee towards willow, Ontario. T2 and you may T3: Intestinal tergites dos and you will 3. Photo: Sarah Johnson. Used in combination with consent.
Profile 1 depicts an image of a near-up away from a queen red-banded Bumblebee into the willow, Ontario. They implies that the new abdomen of the Purple-banded Bumblebee is actually black colored as there are an over-all band of golden-yellow across the their markets dos and you may 3 with areas 5 are black colored.
step three.dos Types inhabitants and you can shipments
The brand new Yellow-banded Bumble-bee happen simply in America. They ranges off Georgia northern in order to Labrador, and you can western from the north All of us and you may Canada to help you Montana, British Columbia (BC), new Northwest Regions (NT), and southeastern Yukon (YT) (Profile dos). Its north maximum around uses latitudinal treeline. Earlier records regarding Alaska (elizabeth.g., given that revealed in COSEWIC (2015)) have been reassessed, therefore the Red-colored-banded Bumble bee no longer is said to be element of you to country’s fauna (Sikes and you can Rykken 2020). Just as much as 50-60% of their internationally diversity is in Canada (COSEWIC 2015).
territory except Nunavut (NU) (COSEWIC 2015), though it may occur regarding the unsurveyed southwest corner of these territory (Figure dos). Regarding YT it is missing west of the fresh new Mackenzie Slopes, but it range generally into the main part of BC (COSEWIC 2015).
Profile 2. Around the world list of Red-colored-banded Bumble bee. Findings (museum specimens and photographs verified inside iNaturalist (2020) and you will Bumble bee View (2019)) while the 2009 try represented from the deep blue dots. Northern limit out of diversity unsure, particularly in central Canada. Data off L. Richardson and you can S. Cannings, map by B. Fournier (Government out-of Northwest Territories). Dataset isn’t complete; specific specimens (elizabeth.grams. those who work in Prescott mais aussi al. 2019) weren’t integrated since the study is obtained once .
Contour dos suggests the global selection of brand new Reddish-banded Bumblebee. The product range stretches off Georgia north to Labrador and you may western using the brand new north You and you will Canada to Montana, Uk Colombia and also the Northwest Regions. It happens in virtually any Canadian province and region except Nunavut. The findings of your own variety between 1824 and 2008 is displayed with light dots and the findings of the kinds ranging from 2009 and you may 2019 is actually presented having deep blue dots.
The Red-colored-banded Bumble bee had previously been perhaps one of the most well-known Ethiopien femme maison bumble bees off east and you will boreal Canada however, their abundance southern off the latest boreal places started to decrease in the first 90s. Pattern research is actually incomplete, however the finest offered study lay suggests relative wealth (Yellow-banded Bumble-bee in line with all of the bumble bees) from the 10 local sites all over south (sub-boreal) Canada (out-of 100 Distance Home, BC, and you can Edmonton eastern as a result of Ottawa and Montreal on the Atlantic Provinces) -2013 (Table 2 from inside the COSEWIC 2015). Generally, the brand new Reddish-banded Bumble-bee provides managed their wide range in spite of the refuses; the one Canadian difference is generally extreme southwestern Ontario (we.e. south and you can west of Kitchener-Waterloo), where types are usually unusual and you may pair if any provides become discover once the 2004 (Colla and you may Dumesh 2010; COSEWIC 2015, iNaturalist 2020).
