Chaetodactylus krombeini, (Krombein's hairy-footed pollen mite), was described by Karl Krombein and E. W. Baker in the 1960s. The mites are about 0.5 mm across, with the females larger than the males. Pollen mites are a kleptoparasitic pest of Megachilidsolitary bees, with Ch. krombeini found with Osmia lignaria of North America, (the Blue Orchard Mason Bee). Pollen mites do not feed on bees, but rather their provisions, and are harmful because they consume the food resources and starve or stunt the developing larvae; there is evidence that pollen mites also directly harm the egg by puncturing it.[1][2][3]
The common name is somewhat misleading, as pollen mites consume more nectar than pollen. Both their feeding habits and their size differs significantly from Varroa destructor, the mite very harmful to the European Honey Bee. Although both are classified as mites, varroa mites are more closely related to ticks and only distantly related to Chaetodactylus.
A mason bee, upon emerging from its nest, may be burdened by hundreds of hitchhiking pollen mites. While mites do shed off bees after leaving the nest, including during mating, studies find that mites are rarely picked up when visiting flowers.[4][5] The mite's life cycle is necessarily tied to the bee's reproductive cycle, but the mechanisms are not fully understood. They have both mobile and immobile phases that are reproductive and non-reproductive, at times simultaneously. Ch. krombeini appears to be more successful in humid conditions, possibly because the food mass stays moist longer under these conditions; heat and dehydration is sometimes used for pollen mite pest management.
Identificationedit
Because accurate identification of different pollen mite species is exacting and microscopic, and several host bees are in commerce and shipped regularly, it is likely that Ch. Krombeini is over-identified. Even experts express reluctance in specifying mites, such as reported in a study of Osmia pumila.[1] In Japan Chaetodactylus nipponicus is linked to the hornfaced bee, Osmia cornifrons, and in Europe Chaetodactylus osmiae is associated with the red mason bee, Osmia rufa.[6] But, Ch. osmiae has been recorded in eastern Oregon, where O. rufa is not known.[2]
Galleryedit
Chaetodactylus krombeini infestation of an Osmia lignaria nest cell.
Mason bee covered in Chaetodactylus krombeini mites
Chaetodactylus krombeini mites copulating
Life stages of Chaetodactylus krombeini; non-phoretic deutonymph and male not shown.
Chaetodactylus krombeini female lateral propodosoma showing enlarged supracoxal sclerite. This trait is diagnostic for the family Chaetodactylidae.
Referencesedit
^ abO'Connor, Barry; Klimov, Pavel B. "Chaetodactylus krombeini Baker, 1962 (Acari: Chaetodactylidae)". insects.ummz.lsa.umich.edu. Retrieved 13 August 2018.
^ abSugden, Evan. "Mitey Bees: the Blue Orchard Bee's Mite Pest". Scarabogram, May 2000, New Series No. 241, pp. 2-3. Scarabs -- the Bug Society. Retrieved 13 August 2018.
^Bosch, Jordi; Kemp, William P. (2001). How to Manage the Blue Orchard Bee. Beltsville, MD: Sustainable Agriculture Network handbook series ; bk. 5. pp. 68–73. ISBN978-1-888626-06-3. Retrieved 13 August 2018.
^Klimov, P.B.; B. OConnor; R. Ochoa; G.R. Bauchan; A.J. Redford; J. Scher (2016). "Chaetodactylus". Bee Mite ID: Bee-Associated Mite Genera of the World. Fort Collins, CO: USDA APHIS Identification Technology Program (ITP). Retrieved 2018-08-15.
^Van Asselt, Laurent (September 2000). "Observations on the life cycle of Chaetodactylus osmiae(Dufour, 1839) (Acari: Chaetodactylidae) parasitic on the solitary bee, Osmia rufa(L.), 1758 (Insecta: Hymenoptera) in Belgium". International Journal of Acarology. 26 (3): 221–228. doi:10.1080/01647950008684192.
Chaetodactylus_krombeini
bugguide.net. Species Chaetodactylus krombeini
January 01, 1970
chaetodactylus, krombeini, krombein, hairy, footed, pollen, mite, described, karl, krombein, baker, 1960s, mites, about, across, with, females, larger, than, males, pollen, mites, kleptoparasitic, pest, megachilid, solitary, bees, with, krombeini, found, with,. Chaetodactylus krombeini Krombein s hairy footed pollen mite was described by Karl Krombein and E W Baker in the 1960s The mites are about 0 5 mm across with the females larger than the males Pollen mites are a kleptoparasitic pest of Megachilid solitary bees with Ch krombeini found with Osmia lignaria of North America the Blue Orchard Mason Bee Pollen mites do not feed on bees but rather their provisions and are harmful because they consume the food resources and starve or stunt the developing larvae there is evidence that pollen mites also directly harm the egg by puncturing it 1 2 3 Chaetodactylus krombeini Phoretic deuteronymph Scientific classification Kingdom Animalia Phylum Arthropoda Class Arachnida Subclass Acari Superorder Acariformes Order Oribatida Family Chaetodactylidae Genus Chaetodactylus Species C krombeini Binomial name Chaetodactylus krombeiniBaker 1962 The common name is somewhat misleading as pollen mites consume more nectar than pollen Both their feeding habits and their size differs significantly from Varroa destructor the mite very harmful to the European Honey Bee Although both are classified as mites varroa mites are more closely related to ticks and only distantly related to Chaetodactylus A mason bee upon emerging from its nest may be burdened by hundreds of hitchhiking pollen mites While mites do shed off bees after leaving the nest including during mating studies find that mites are rarely picked up when visiting flowers 4 5 The mite s life cycle is necessarily tied to the bee s reproductive cycle but the mechanisms are not fully understood They have both mobile and immobile phases that are reproductive and non reproductive at times simultaneously Ch krombeini appears to be more successful in humid conditions possibly because the food mass stays moist longer under these conditions heat and dehydration is sometimes used for pollen mite pest management Identification editBecause accurate identification of different pollen mite species is exacting and microscopic and several host bees are in commerce and shipped regularly it is likely that Ch Krombeini is over identified Even experts express reluctance in specifying mites such as reported in a study of Osmia pumila 1 In Japan Chaetodactylus nipponicus is linked to the hornfaced bee Osmia cornifrons and in Europe Chaetodactylus osmiae is associated with the red mason bee Osmia rufa 6 But Ch osmiae has been recorded in eastern Oregon where O rufa is not known 2 Gallery edit nbsp Chaetodactylus krombeini infestation of an Osmia lignaria nest cell nbsp Mason bee covered in Chaetodactylus krombeini mites nbsp Chaetodactylus krombeini mites copulating nbsp Life stages of Chaetodactylus krombeini non phoretic deutonymph and male not shown nbsp Chaetodactylus krombeini female lateral propodosoma showing enlarged supracoxal sclerite This trait is diagnostic for the family Chaetodactylidae References edit a b O Connor Barry Klimov Pavel B Chaetodactylus krombeini Baker 1962 Acari Chaetodactylidae insects ummz lsa umich edu Retrieved 13 August 2018 a b Sugden Evan Mitey Bees the Blue Orchard Bee s Mite Pest Scarabogram May 2000 New Series No 241 pp 2 3 Scarabs the Bug Society Retrieved 13 August 2018 Bosch Jordi Kemp William P 2001 How to Manage the Blue Orchard Bee Beltsville MD Sustainable Agriculture Network handbook series bk 5 pp 68 73 ISBN 978 1 888626 06 3 Retrieved 13 August 2018 Klimov P B B OConnor R Ochoa G R Bauchan A J Redford J Scher 2016 Chaetodactylus Bee Mite ID Bee Associated Mite Genera of the World Fort Collins CO USDA APHIS Identification Technology Program ITP Retrieved 2018 08 15 Park Y L Kondo V White J West T McConnell B McCutcheon T April 2009 Nest to nest dispersal ofChaetodactylus krombeini Acari Chaetodactylidae associated withOsmia cornifrons Hym Megachilidae Journal of Applied Entomology 133 3 174 180 doi 10 1111 j 1439 0418 2008 01351 x ISSN 0931 2048 Van Asselt Laurent September 2000 Observations on the life cycle of Chaetodactylus osmiae Dufour 1839 Acari Chaetodactylidae parasitic on the solitary bee Osmia rufa L 1758 Insecta Hymenoptera in Belgium International Journal of Acarology 26 3 221 228 doi 10 1080 01647950008684192 Chaetodactylus krombeini bugguide net Species Chaetodactylus krombeini Retrieved from https en wikipedia org w index php title Chaetodactylus krombeini amp oldid 1070871867, wikipedia, wiki, book, books, library,
