Distribution
(
英語
)
由Catalog of Hymenoptera in America North of Mexico提供
Alaska south to Calif., Utah, and N. Mex. (Alta., B.C., Yukon, Alaska, Calif. (high Sierra Nevada Mts.), Colo., Idaho, Mont., N. Mex., Oreg., Utah, Wash., and Wyo.), but see comment below.
- 書目引用
- Catalog of Hymenoptera in America North of Mexico. 1979. Prepared cooperatively by specialists on the various groups of Hymenoptera under the direction of Karl V. Krombein and Paul D. Hurd, Jr., Smithsonian Institution, and David R. Smith and B. D. Burks, Systematic Entomology Laboratory, Insect Identification and Beneficial Insect Introduction Institute. Science and Education Administration, United States Department of Agriculture.
Conservation Status
由University of Alberta Museums提供
Unknown (Cane and Tepedino 2001).
- 許可
- cc-by-nc
- 版權
- University of Alberta Museums
Cyclicity
由University of Alberta Museums提供
Flight period of queens ranges from late March to late August; workers: late April to late September; males: late May to late September (Thorp et al. 1983).
- 許可
- cc-by-nc
- 版權
- University of Alberta Museums
Distribution
由University of Alberta Museums提供
Western Nearctic region (Williams 1996).
- 許可
- cc-by-nc
- 版權
- University of Alberta Museums
General Description
由University of Alberta Museums提供
"Bombus flavifrons belongs to the diverse subgenus Pyrobombus Dalla Torre which is characterized by a malar space of medium length but longer than its apical width and antennal flagellum 2.5 to 3x the length of the scape. The penis valves of the males are usually hook shaped (Thorp et al., 1983).
The robust body of B. flavifrons is densely covered in coarse yellow and black pile. The face and head are primarily yellow (Franklin 1912) and mixed with black on the anterior scutum (Thorp et al. 1983). Abdominal segments 3 and 4 are typically black but males may have yellow pile and females, reddish pile on the apical portion (Thorp et al. 1983). Pile at the base of the legs is light and the wings subhyaline (Franklin 1912). Body size and wingspan varies between castes: queens are 13 to 16 mm with wingspans of 27 to 34 mm, workers range between 9 to 12 mm with wingspans of 19 to 27 mm, and males are 11 to 12 mm with wingspans of 25 to 26 mm (Franklin 1912). The male genitalia is very similar to B. centralis with smoothly rounded, sickle shaped penis valves, narrow valsellae and a weakly trilobate sternite 8 that is apically membraneous (Thorp et al. 1983, Franklin 1912)."
- 許可
- cc-by-nc
- 版權
- University of Alberta Museums
Habitat
由University of Alberta Museums提供
Concealed, underground nests in mixed deciduous and coniferous forests (Hobbs 1967).
- 許可
- cc-by-nc
- 版權
- University of Alberta Museums
Life Cycle
由University of Alberta Museums提供
Bombus flavifrons has an annual colony cycle. Queens emerge in late March from shallow hibernacula dug into the soil to forage and find suitable nest sites, often in abandoned mouse nests. Pollen is collected and manipulated by the founding queen into a ball. Eggs are laid in vertical rows on the top of the ball and covered over with pollen and wax. A nectar pot previously constructed allows the queen to feed while incubating the brood clump at 30-32° C. Larvae hatch after 4-5 days and begin to feed on the pollen mass. The queen continues foraging and regurgitates nectar to the larvae through openings on the top of the brood cells. After 4 molts, larvae spin loose silk cocoons and pupate. The queen now lays a second and third batch of eggs on top of the pupal cocoons using the pollen and wax from the first batch. Female workers emerge 4-5 weeks after the first eggs are laid and take over foraging and nest construction activities. The queen now exclusively constructs egg cells and lays eggs. As the colony expands upwards and outwards and workers increase in number, fertilized eggs become young queens and males emerge from unfertilized eggs. Caste differences are physiological and large numbers of workers are able to provide the food necessary to rear queens. Males are often produced before the new queens and will leave the colony almost immediately after emergence. Young queens may perform both nest and foraging duties prior to mating. Both sexes mate multiple times. Males will mount the queens in the air and continue coitus for several minutes on a nearby surface until kicked off by the female. Once mated, queens prepare for hibernation by eating and increasing vital fat body reserves. The colony declines in late August; workers, males, and the original queen die. The newly mated queens overwinter in small cells in the soil in preparation for spring. (Adapted from Alford 1975 and Thorp et al., 1983)
- 許可
- cc-by-nc
- 版權
- University of Alberta Museums
Trophic Strategy
由University of Alberta Museums提供
Polylectic, adults consume nectar and pollen from a variety of 61 plant families, primarily Compositae, Leguminosae, Saxifragaceae, and Labiatae in California with Cirsium, Epilobium, and Mentha receiving the most visits (Thorp et al., 1983).
- 許可
- cc-by-nc
- 版權
- University of Alberta Museums
Bombus flavifrons
(
英語
)
由wikipedia EN提供
Bombus flavifrons, the yellow-fronted bumble bee or yellowhead bumblebee, is a species of bumblebee. It is native to North America, where it is distributed across much of Canada, Alaska, and the western contiguous United States.[1]
Description
This is a robust bumblebee; the queen has a body length between 13 and 16 mm (0.51 and 0.63 in) and a wingspan of 27 to 34 mm (1.1 to 1.3 in), the male is 11 to 12 mm (0.43 to 0.47 in) in length with a wingspan of 25 to 26 mm (0.98 to 1.02 in), and the workers are 9 to 12 mm (0.35 to 0.47 in) in length and 19 to 27 mm (0.75 to 1.06 in) in wingspan.[3]
The yellow-fronted bumble bee has a dense, untidy fur. The head is yellow with black hairs intermixed on the posterior part,[3] the thorax has a mixed black and yellow colouration, often (always with the queen) with a black, central field. The first two terga (abdominal segments) are yellow, on the females often with a black, central field on terga 1 to 2. Terga 3 and 4 are red, and the tail black, sometimes with yellow fields.[4]
- Subspecies
Subspecies include:[5]
-
B. f. dimidiatus — with the red fur more or less entirely replaced with black[4]
- B. f. flavifrons
Ecology
The queen emerges from her hibernation at the end of March and often builds a nest in a disused mouse nest. The first workers appear about a month later. The nest declines at the end of August, and all the inhabitants die, except for the new queens, which hibernate in the earth. The bumblebee feeds on several flowering plants, most commonly those in Asteraceae, Fabaceae, Saxifragaceae, and Lamiaceae.[3]
This species is host to the parasitic indiscriminate cuckoo bumblebee (Bombus insularis).[1]
This bee occurs at high altitude and latitude, living in habitat such as tundra, taiga, and mountain forests and meadows.[1]
References
Bombus flavifrons: Brief Summary
(
英語
)
由wikipedia EN提供
Bombus flavifrons in
Washington state Bombus flavifrons, the yellow-fronted bumble bee or yellowhead bumblebee, is a species of bumblebee. It is native to North America, where it is distributed across much of Canada, Alaska, and the western contiguous United States.
Bombus flavifrons
(
荷蘭、佛萊明語
)
由wikipedia NL提供
Insecten Bombus flavifrons is een vliesvleugelig insect uit de familie bijen en hommels (Apidae). De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1863 door Cresson.[1]
Bronnen, noten en/of referenties Geplaatst op:
16-12-2011
Dit artikel is een beginnetje over biologie. U wordt uitgenodigd om op bewerken te klikken om uw kennis aan dit artikel toe te voegen.
Bombus flavifrons
(
瑞典語
)
由wikipedia SV提供
Bombus flavifrons (saknar svenskt namn) är en insekt i överfamiljen bin (Apoidea) och släktet humlor (Bombus) som finns i Nordamerika.
Utseende
Bombus flavifrons är en robust, långtungad humla;[3] drottningarna har en längd mellan 13 och 16 mm och en vingbredd på 27 till 34 mm, hanarna är mellan 11 och 12 mm långa med vingbredden 25 till 26 mm, och arbetarna har en längd mellan 9 och 12 mm med en vingbredd på 19 till 27 mm.[4]
Pälsen består av grova, svarta och gula hår: Huvudet är gult med en del svarta hår,[4] mellankroppen är blandat svart och gul, de två främsta segmenten på bakkroppen gula på sidorna, och ofta även upptill, det tredje segmentet svart, ibland delvis med en gul tvärrand, och den bakre delen av bakkroppen övervägande svart.[5] Det finns färgvarieteter: Vissa honor kan ha rödaktig päls på bakkroppssegment 3 och 4[4], medan formen B. flavifrons dimidiatus kan ha de tre främre bakkroppssegmenten, och även det femte helt gula[6].
Vanor
Bombus flavifrons samlar nektar och pollen från ett flertal växtfamiljer, främst från familjerna korgblommiga växter (som tistlar), kransblommiga växter (bland annat myntor), ärtväxter och stenbräckeväxter.[4]
De övervintrande drottningarna kommer fram i slutet av mars och bygger ett bo, oftast i något övergivet smågnagarbo. De första arbetarna kommer fram drygt en månad senare. När hanarna kommer fram i slutet på maj lämnar de boet direkt, medan de nybildade drottningarna stannar kvar ett tag och hjälper till med födoinsamling och att ruva äggen. I slutet av augusti dör kolonin ut, utom de nya drottningarna som övervintrar i små celler nere i jorden.[4]
Utbredning
Bombus flavifrons är vanlig[3] i västra Nordamerika från British Columbia till södra Kalifornien. Österut når den till Idaho och Utah (ej formen B. flavifrons dimidiatus).[6] Den har även tidigare påträffats i Alaska (senast 1961) och östra Nordamerika (1949).[7]
Källor
-
^ ”Pyrobombus” (på engelska). Natural History Museum, London. http://www.nhm.ac.uk/research-curation/research/projects/bombus/pr.html#flavifrons. Läst 15 januari 2015.
-
^ ”Bombus flavifrons Cresson, 1863” (på engelska). Discover Life. http://www.discoverlife.org/mp/20q?search=Bombus+flavifrons. Läst 6 februari 2013.
- ^ [a b] Jonathan Koch, James Strange och Paul Williams (2010). ”Bumble Bees of the Western United States” (på engelska) (7,56 MB). USDA Forest Service & Pollinator Partnership. sid. 42–45. http://www.xerces.org/wp-content/uploads/2008/09/Western_BB_guide.pdf. Läst 22 februari 2015.
- ^ [a b c d e] ”Bombus flavifrons” (på engelska). Strickland Entomological Museum, University of Alberta. http://www.entomology.ualberta.ca/searching_species_details.php?s=6274. Läst 6 februari 2013.
-
^ Matthew P. Kweskin (31 mars 1997). ”Bombus flavifrons Cresson, 1863” (på engelska). The Evergreen State College, Washington. http://academic.evergreen.edu/projects/evergreenbiota/kingdom/animalia/phylum/arthropoda/class/insecta/order/hymenoptera/family/apidae/bombus/Bombus/flavifrons/flav.htm. Läst 6 februari 2013.
- ^ [a b] ”North American bumblebees” (på engelska). Bumblebee.org. http://www.bumblebee.org/NorthAmerica.htm. Läst 2 april 2010.
-
^ ”Map of Bombus flavifrons” (på engelska). Discover Life. http://www.discoverlife.org/mp/20m?kind=Bombus+flavifrons. Läst 3 april 2010.
Bombus flavifrons: Brief Summary
(
瑞典語
)
由wikipedia SV提供
Bombus flavifrons (saknar svenskt namn) är en insekt i överfamiljen bin (Apoidea) och släktet humlor (Bombus) som finns i Nordamerika.
Bombus flavifrons
(
越南語
)
由wikipedia VI提供
Bombus flavifrons là một loài Hymenoptera trong họ Apidae. Loài này được Cresson mô tả khoa học năm 1863.[2]
Chú thích
Tham khảo
Bombus flavifrons: Brief Summary
(
越南語
)
由wikipedia VI提供
Bombus flavifrons là một loài Hymenoptera trong họ Apidae. Loài này được Cresson mô tả khoa học năm 1863.
Bài viết phân họ Ong mật này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn. 
