Mentha spicata var. spicata (L. 1753) and Raphanus sativus var. sativus (L. 1753): meal for Medauroidea extradentata (Brunner von Wattenwyl 1907) (Phasmatodea: Phasmatidae) - Archive ouverte HAL Accéder directement au contenu
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Mentha spicata var. spicata (L. 1753) and Raphanus sativus var. sativus (L. 1753): meal for Medauroidea extradentata (Brunner von Wattenwyl 1907) (Phasmatodea: Phasmatidae)

Résumé

Medauroidea extradentata is a stick insect coming from the district of Annam in Vietnam. Although its natural food plant in Vietnam is unknown, this species is able to feed on a large variety of plants in captivity such as brambles and raspberries (Rubus spp. (L. 1753)) and hazels (Corylus maxima (Mill. 1768)) for the most common. During periods of current food plants shortage such as Rubus idaeus and Rubus fruticosus, when M. spicata var. spicata branches were presented, it was the stem that appeared to have been eaten. Moreover, four live specimens at first instar (between 1.1-1.5 cm in length) were found on R. sativus var. sativus plants shortly after mid-August 2014. So it has been demonstrated that some specimens of this species are able to survive on spearmint (Mentha spicata var. spicata) or radish plants (Raphanus sativus var. sativus) (1). But, it is interesting to know if specimens living on one of the latter are able to perform a complete cycle. That is why two specimens living on spearmint were observed for one year and two other specimens living on radish plants were followed for ten months. The stick insects living on the spearmint had a normal development, became adults and the laid eggs were all viable. On the other hand, the specimens that lived on radish plants did not exceed the fourth instar (5.4 cm while an imago is 9 to 10 cm) in size. They died between 8 and 10 months, and became not adult. R. sativus allows the survival of the specimens but the M. extradentata species does not. In conclusion, we can say that we have slightly expanded the selection of food for this phasmid. Indeed, only the spearmint can be used as food for M. extradentata. (1) Olive G., Zimmer J.-Y., Olive G. (2016). Mentha spicata var. spicata (L. 1753) and Raphanus sativus var. sativus (L. 1753) : survival meal for Medauroidea extradentata (Brunner von Wattenwyl 1907) (Phasmatodea: Phasmatidae). Communications in Agricultural and Applied Biological Sciences 81 (1), p. 190-193.
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hal-01408357 , version 1 (04-12-2016)

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Gabriel Olive, Gilles Olive. Mentha spicata var. spicata (L. 1753) and Raphanus sativus var. sativus (L. 1753): meal for Medauroidea extradentata (Brunner von Wattenwyl 1907) (Phasmatodea: Phasmatidae). Entomology in Belgium, Dec 2016, Bruxelles, Belgium. pp.39, 2016, Royal Belgian Entomological Society, 6th Symposium, Entomology in Belgium. ⟨hal-01408357⟩
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