This new Red-colored-banded Bumble-bee are a medium-size of bumble bee, which have queens, reproductive guys, and you can an inferior personnel caste

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This new Red-colored-banded Bumble-bee are a medium-size of bumble bee, which have queens, reproductive guys, and you can an inferior personnel caste

step 3.step one Species dysfunction

He’s got a preliminary face and you may tongue size according to extremely other bumble bees. The upperside out-of much of the newest abdomen was black colored, but there is however exclusive, wide group of golden-yellow hair all over markets 2 and you will step three (Contour step 1). Part 5 is actually black or pale-yellow-brown.

The brand new guys are similar from inside the the color to the female, even though they usually have more purple hairs for the deal with. They are intermediate in dimensions between queens and you can workers, and possess apparently quick antennae (COSEWIC 2015). To learn more about morphology, look for Williams et al. (2014).

New Red-colored-banded Bumble-bee try formerly noticed conspecific into the West Bumble Bee ( Bombus occidentalis) but Bertsch ainsi que al. (2010) and you can Williams mais aussi al. (2012) claimed mitochondrial CO1 sequences sufficiently divergent to take on both ) receive consistent morphological and you may unit characters support a couple collection of species.

Contour step one. King Purple-banded Bumble-bee to your willow, Ontario. T2 and you can T3: Abdominal tergites 2 and you will step three. Photo: Sarah Johnson. Used in combination with permission.

Profile step one illustrates a picture of an almost-up away from a king reddish-banded Bumblebee on the willow, Ontario. It signifies that the new abdomen of Reddish-banded Bumblebee try black and there’s a general set of golden-yellow across the their places dos and you will step 3 having locations 5 getting black.

3.2 Varieties population and you can distribution

The latest Yellow-banded Bumble-bee happens merely within the America. They range away from Georgia northern to Labrador, and you will western from the north All of us and you will Canada so you can Montana, British Columbia (BC), this new Northwest Areas (NT), therefore the southeastern Yukon (YT) (Profile dos). The north chaud Kirghizstani femmes maximum more or less pursue latitudinal treeline. Earlier ideas out of Alaska (e.grams., since revealed when you look at the COSEWIC (2015)) happen reassessed, as well as the Purple-banded Bumble-bee no longer is said to be section of one to country’s fauna (Sikes and you may Rykken 2020). Around fifty-60% of its around the globe diversity is within Canada (COSEWIC 2015).

region except Nunavut (NU) (COSEWIC 2015), though it may occur from the unsurveyed southwestern part of these region (Shape 2). Regarding YT it’s absent to the west of the latest Mackenzie Hills, nonetheless it selections generally on the central element of BC (COSEWIC 2015).

Figure 2. All over the world a number of Red-banded Bumble bee. Findings (museum specimens and you may images affirmed inside iNaturalist (2020) and Bumble bee Observe (2019)) as 2009 was illustrated by dark blue dots. North limitation out of diversity undecided, particularly in main Canada. Research of L. Richardson and you can S. Cannings, map by the B. Fournier (Regulators away from Northwest Regions). Dataset is not comprehensive; specific specimens (elizabeth.g. those in Prescott mais aussi al. 2019) weren’t integrated since studies is gotten shortly after .

Contour 2 suggests the worldwide directory of the Red-banded Bumblebee. The number expands out of Georgia northern in order to Labrador and western using the latest north All of us and you will Canada to Montana, British Colombia in addition to Northwest Areas. It happens in almost any Canadian state and you can territory except Nunavut. This new observations of your own types anywhere between 1824 and you may 2008 is showed with white dots while the findings of your varieties between 2009 and you can 2019 are shown with dark blue dots.

The fresh new Purple-banded Bumble bee was once perhaps one of the most prominent bumble bees out of eastern and boreal Canada however, the wealth southern area away from new boreal regions began to decrease in the first 1990s. Pattern analysis is actually imperfect, although top offered analysis set suggests cousin abundance (Yellow-banded Bumble-bee according to most of the bumble bees) on ten regional web sites across the southern (sub-boreal) Canada (of 100 Mile Family, BC, and you can Edmonton eastern compliment of Ottawa and Montreal towards Atlantic Provinces) -2013 (Dining table dos during the COSEWIC 2015). Typically, the fresh Red-banded Bumble-bee have handled their broad range regardless of the refuses; usually the one Canadian exemption are tall southwestern Ontario (i.elizabeth. southern area and you may west of Kitchener-Waterloo), where in fact the species are always strange and you can pair if any has actually come found because the 2004 (Colla and Dumesh 2010; COSEWIC 2015, iNaturalist 2020).