Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Xylocopa caffra

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Xylocopa caffra

Xylocopa caffra is a species of Afrotropical carpenter bee that ranges from west to central and southern Africa, besides Madagascar and some Indian Ocean archipelagos.[2]

Contents

Appearance

The females are black with two white or yellow bands over the hind thorax and first abdominal segment respectively, while the males are uniform greenish yellow in colour.[3] Females with white bands are associated with dry climatic conditions during larval development, but females of either colour, or colour grade, may emerge from the same brood.[4] In the Western Cape all have yellow bands however. A form with orange-red bands occurs in East Africa.[5]

Biology

The species is at home in various habitat types, from moist coastal settings to dry savannah. The territorial males patrol small areas around particular plants or flowers. The females are solitary nesters in Aloe or Agave stems, tree branches or timber.[3] The nests are partitioned into various cells, separated by walls of glued wood residue.

As with other carpenter bees, the larvae are fed a mixture of pollen and nectar. The females have a mutualistic association with phoretic mites that are transported from nest to nest in an abdominal chamber, called the acarinarium.[2][3] The mites feed on nest fungi that may otherwise infest the nectar and pollen provisions of the larvae.[2]

They are parasitized by various biota including Anthrax, Coelopencyrtus, Dinogamasus, Hyperechia, Physocephala, Sennertia and Synhoria.[2]

Range

It has been recorded from Angola, Botswana, Cameroon, CAR, Congo, the DRC, Ethiopia, Guinea, Kenya, Malawi, Mozambique, Somalia, South Africa, Namibia, Tanzania, Uganda, Zambia and Zimbabwe. In the Indian Ocean region it occurs in Madagascar, the Comoro Islands and Seychelles.[2]

Races

It has two races:[1]

  • X. c. caffra (Linnaeus, 1767)
  • X. c. seychellensis (Cockerell, 1912)[6]

References

  1. ^ a b "Xylocopa caffra (Linnaeus, 1767)". ITIS Report. Retrieved 13 February 2013. 
  2. ^ a b c d e Van Noort, Simon. "Xylocopa caffra". Wasp Web. iziko museums. Retrieved 13 February 2013. 
  3. ^ a b c Picker, Mike et al (2004). Field Guide To Insects Of South Africa. Cape Town: Struik. pp. 418–419. ISBN 978-1-77007-061-5. 
  4. ^ Eardley, C.D. (1983). A taxonomic revision of the genus Xylocopa Latreille 58. Pretoria: Department of Agriculture. p. 67. ISBN 0621079642. 
  5. ^ Vicidomini, Salvatore (2006). "Sistematica e distribuzione degli Xylocopini (Hymenoptera: Apidae): nuove e rare segnalazioni per l'Africa (parte V). Rassegna delle forme cromatiche di Xylocopa caffra, X. scioensis e X. nigrita.". Il Naturalista Campano (pubblicazioni aperiodiche del Museo Naturalistico degli Alburni, Corleto Monforte) 2: 1–8. ISSN 1827-7160. 
  6. ^ Vicidomini, Salvatore; Italian Xylocopini Research Project (2006). "Sistematica e distribuzione degli Xylocopini (Hymenoptera: Apidae): nuove e rare segnalazioni per l'Africa (parte IV). Rassegna dei taxa segnalati sulle Seychelles". Il Naturalista Campano. n.1: 1–6. Retrieved 20 February 2013. 

Media related to Xylocopa caffra at Wikimedia Commons


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