Plant Systematics and Evolution

, Volume 209, Issue 1–2, pp 47–65 | Cite as

Beetle pollination of peacock moraeas (Iridaceae) in South Africa

  • Kim E. Steiner


The peacock moraeas are South African geophytes withIris-like flowers that are characterized by broad outer tepals with iridescent spots. Three of the seven species were studied and found to be exclusively visited and pollinated by beetles. The primary pollinators were hopliine (Scarabaeidae) beetles in the generaPeritrichia, Monochelus, Anisonyx andAnisochelus. These beetles visit flowers for nectar, pollen and mating.Peritrichia rufotibialis was the primary pollinator ofMoraea villosa, P. abdominalis was the primary pollinator ofM. tulbaghensis, whileMonochelus sp. nov. was the primary pollinator of the third species,M. neopavonia. High levels of fruit set attest to the effectiveness of these beetles as pollinators. Average fruit set ranged from 83.5 ± 34.8% (M. villosa) to 97.2 ± 11.6% (M. tulbaghensis). Average seed set in the various populations was more variable, but was also quite high, ranging from 77.3 ± 40.8 (M. villosa) to 342.2 ± 115.0 (M. neopavonia) seeds per capsule. Although hopliine beetles are abundant and diverse in southern Africa and commonly visit flowers, this is the first well-documented report of pollination by these beetles.

Key words

Iridaceae Moraea Scarabaeidae Hopliini Anisonyx Anisochelus Monochelus Peritrichia Monkey beetles pollination fruit set 


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  1. Armstrong, J. E., Irvine, A. K., 1990: Functions of staminodia in the beetle-pollinated flowers ofEupomatia laurina. — Biotropica22: 429–431.Google Scholar
  2. Bergström, G., Groth, I., Pellmyr, O., Endress, P. K., Thien, L. B., Hübener, A., Francks, W., 1991: Chemical basis of a highly specific mutualism: chiral esters attract pollinating beetles inEupomatiaceae. — Phytochemistry30: 3221–3225.Google Scholar
  3. Borg-Karlson, A. K., 1990: Chemical and ethological studies of pollination in the genusOphrys (Orchidaceae). — Phytochemistry29: 1359–1387.Google Scholar
  4. Cowling, R., Richardson, D., 1995: Fynbos. — Vlaeburg: Fernwood Press.Google Scholar
  5. Dafni, A., Bernhardt, P., Shmida, A., Ivri, Y., Greenbaum, S., O'Toole, C., Losito, L., 1990: Red bowl-shaped flowers: convergence for beetle pollination in the Mediterranean region. — Israel J. Bot.39: 81–92.Google Scholar
  6. Dalla Torre, K. W., 1915:Hopliini. — InJunk, W., Schenkling, S., (Eds): Coleopterorum Catalogus,20, pp. 339–385.Google Scholar
  7. Erikson, R., 1994: The remarkable weevil pollination of the neotropicalCarludovicoideae (Cyclanthaceae). — Pl. Syst. Evol.189: 75–81.Google Scholar
  8. Faegri, K., Pijl, L. van der, 1979: The principles of pollination ecology. 3rd edn. — New York: Pergamon Press.Google Scholar
  9. Giliomee, J. H., 1986: Hunting for insect pollinators on fynbos flowers. — Veld Fl. (1975 +)72: 6–7.Google Scholar
  10. , 1995:Aristea lugens: skaars, mooi, en geheimsinning. — Veld Fl. (1975 +)81: 123.Google Scholar
  11. Goldblatt, P., 1986: The moraeas of southern Africa. — Ann. Kirstenbosch Bot. Gard.14:1–224.Google Scholar
  12. , 1989: Notes on the pollination mechanisms ofMoraea inclinata andM. brevistyla (Iridaceae). — Pl. Syst. Evol.163: 201–209.Google Scholar
  13. , 1995: New species of southern AfricanMoraea (Iridaceae—Iridioideae), and the reduction ofRheome. — Novon5: 262–269.Google Scholar
  14. , 1996: Aristeas and beetle pollination. — Veld Fl. (1975 +)82: 17–19.Google Scholar
  15. Gottsberger, G., 1977: Some aspects of beetle pollination in the evolution of flowering plants. — Pl. Syst. Evol., Suppl.1: 211–226.Google Scholar
  16. , 1991: Olfactory and visual attraction ofErioscelis emarginata (Cyclocephalini, Dynastinae) to the inflorescences ofPhilodendron selloum (Araceae). — Biotropica23: 23–28.Google Scholar
  17. Irvine, A. K., Armstrong, J. E., 1990: Beetle pollination in tropical forests of Australia. — InBawa, K. S., Hadley, M., (Eds): Reproductive ecology of tropical forest plants, pp. 135–148. — Paris: UNESCO & Parthenon Publishing Group.Google Scholar
  18. Johnson, S. D., Midgley, J. J., 1997: Fly pollination ofGorteria diffusa (Asteraceae) and a possible mimetic function for the dark spots on the capitulum. — Amer. J. Bot.84: 429–436.Google Scholar
  19. Kullenberg, B., Bergström, G., 1973: The pollination ofOphrys orchids. — InBendz, G., Santesson, G., (Eds): Chemistry in botanical classification, pp. 253–258. — New York: Academic Press.Google Scholar
  20. Kulzer, H., 1960: Revision derDichelus: UntergattungenHeterochelus Burm. undIschnochelus Burm. (Col. Melolonth.). — Ent. Arb. Mus. Georg Frey11: 433–580.Google Scholar
  21. Listabarth, C., 1996: Pollination ofBactris byPhyllotrox andEpurea. Implications of the palm breeding beetles on pollination at the community level. — Biotropica28: 69–81.Google Scholar
  22. Marloth, R., 1915: The Flora of South Africa.4. — Cape Town: Darter.Google Scholar
  23. Oliver, E. G. H., 1988:Aristea biflora. — Fl. Pl. Africa, Plate 1978.Google Scholar
  24. Paulus, H. F., Gack, C., 1990: Pollination ofOphrys (Orchidaceae) in Cyprus. — Pl. Syst. Evol.169: 177–207.Google Scholar
  25. Peakall, R., 1989: The unique pollination ofLeporella fimbriata (Orchidaceae): pollination by pseudocopulating male ants (Myrmecia urens, Formicidae). — Pl. Syst. Evol.167: 137–148.Google Scholar
  26. Péringuey, L., 1902: Descriptive catalogue of theColeoptera of South Africa (Lucanidae andScarabaeidae). — Trans. S. African Philos. Soc.12: 561–896.Google Scholar
  27. Picker, M. D., Midgley, J. J., 1996: Pollination by monkey beetles (Coleoptera:Scarabaeidae;Hopliini): flower and colour preferences. — African Entomol.3: 7–14.Google Scholar
  28. Porsch, O., 1950: Geschichtliche Lebenswertung der Kastanienblüte. — Oesterr. Bot. Z.97: 269–321.Google Scholar
  29. Rebelo, A. G., 1992: Preservation of biotic diversity. — InCowling, R., (Ed.): Fynbos, pp. 309–344. — Cape Town: Oxford University Press.Google Scholar
  30. Schein, H., 1959: Die südafrikanischenPachycnemini (Col. Hopliini). — Ent. Arb. Mus. Georg Frey10: 1–150.Google Scholar
  31. Scott-Elliot, G. F., 1891: Notes on the fertilization of South African and Madagascar flowering plants. — Ann. Bot.5: 331–405.Google Scholar
  32. Steiner, K. E., 1994: Adaptive radiation for pollination in a South African orchid genus. — Amer. J. Bot.81: (Abstracts) 189.Google Scholar
  33. Stoutamire, W. P., 1975: Pseudocopulation in Australian terrestrial orchids. — Amer. Orchid Soc. Bull.44: 226–233.Google Scholar
  34. Struck, M., 1994: Flowers and their insect visitors in the arid winter rainfall region of southern Africa: observations on permanent plots. Insect visitation behaviour. — J. Arid Environm.28: 51–74.Google Scholar
  35. Vogel, S., 1954: Blütenbiologische Typen als Elemente der Sippengliederung. — Jena: G. Fischer.Google Scholar

Copyright information

© Springer-Verlag 1998

Authors and Affiliations

  • Kim E. Steiner
    • 1
  1. 1.Compton HerbariumNational Botanical InstituteClaremontRepublic of South Africa

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