Iucn-vulnerable
Guides
Bombus fervidus
golden northern bumble bee, yellow bumblebee
Bombus fervidus is a North American bumble bee distinguished by its predominantly yellow coloration on the abdomen and thorax. The species is a long-tongued specialist that forages on flowers with deep corollas, and has been documented visiting over 20 plant genera including milkweeds, goldenrods, and blueberries. It exhibits complex social behavior including coordinated nest defense and worker-queen conflict over male production. Populations have declined significantly across most of its range, with habitat loss to agricultural intensification identified as the primary threat; it is currently classified as Vulnerable by the IUCN.
Bombus terricola
Yellow-banded Bumble Bee, Yellow-banded Bumblebee
Bombus terricola, the yellow-banded bumble bee, is a North American bumble bee native to southern Canada and the eastern and midwestern United States. The species has experienced significant population declines since the late 1990s, with range contractions particularly severe in its southern distribution. It is now classified as vulnerable on the IUCN Red List and listed on the Xerces Society Red List of endangered bees. The species exhibits complex behavioral traits including thermoregulation for cold-weather flight and adaptive responses to queenless nests.
Haplophthalmus
Haplophthalmus is a genus of small terrestrial isopods (woodlice) in the family Trichoniscidae. The genus contains 47 described species, with several showing restricted geographic ranges that have led to conservation concerns. Two species, H. abbreviatus and H. rhinoceros, are listed as vulnerable on the IUCN Red List due to their limited distributions in the Balkans.