Social behaviour and life history of membracine treehoppers

Abstract

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Tending-Ants Increase Survivorship and Reproductive Success of Calloconophora pugionata Drietch (Hemiptera, Membracidae), a Trophobiont Herbivore of Myrcia obovata O.Berg (Myrtales, Myrtaceae)

“…In our study the non-effect of ant exclusion in 2009 coincides with a decrease in the amount of enemies of C. pugionata. The strategy of laying eggs on leaf margins is uncommon for Hemiptera species (Lin, 2006). Eggs laid on leaf margins exhibited higher survival rates when compared to those placed on leaf branches, especially in the presence of ants.…”

“…Only through studies in various conditions of space and time can predict the occurrence and degree of variability of these conditional interactions (Cushmann & Addicott, 1991). The hemipteran C. pugionata has a number of adaptations which suggest low interactivity with ants, as long hind legs, pigmentation for camouflage and parenting developed (Lin, 2006). This features altogether suggests low interactivity and dependence on ants as protectors (Rico-Gray & Oliveira, 2007).…”

“…1b). The genus Calloconophora exhibits a high degree of parental care and does not usually interact with ants, which often act as predators (Lin, 2006).…”

Book review of Vibrational Communication in Animals by Peggy S.M. Hill Peggy S.M. Hill .Vibrational Communication in Animals. Harvard University Press. Cambridge, U.S.A. 261 pages. $US 39.95.

“…How group signals were modified from incidental vibrations produced in the context of feeding or locomotion is also discussed. One conclusion from this chapter: researchers have only scratched the surface, and as they continue to examine more social species and build more phylogenies, the use of the comparative method will increase in the quest to answer some important questions regarding the co-evolution of vibrational communication and sociality (e.g., Lin, 2006). This book, however, is not without some limitations.…”

Membracis foliata(Linnaeus) (Hemiptera: Membracidae: Membracinae) and allied species: an effort towards their correct determination

“…Its surface is entirely smooth, unlike two closely resembling genera, Phyllotropis and Folicarina, which have lateral metopidial carinae (Sakakibara 1992). Although there are as yet no available data on the life history of these two genera, Membracis is known to be found commonly in aggregates that range from a few to thousands of individuals in the same plant and are always tended by ants (Lin 2006).…”