Oak Treehopper, Platycotis vittata (Fabricius) (Insecta: Hemiptera: Membracidae)

Phylogenetics and phylogeography of the oak treehopper Platycotis vittata indicate three distinct North American lineages and a neotropical origin.

Ecological differences including habitat, pollinators, and temporal separation between species and populations are important isolation barriers that can impede gene flows among evolving lineages, and subsequently lead to population divergence or speciation (Coyne and Orr, 2004). Temporal or allochronic speciation occurs when members of co-existing species or populations differ in breeding perio...

Jumping mechanisms of treehopper insects (Hemiptera, Auchenorrhyncha, Membracidae).

The kinematics and jumping performance of treehoppers (Hemiptera, Auchenorrhyncha, Membracidae) were analysed from high speed images. The eight species analysed had an 11-fold range of body mass (3.8-41 mg) and a 2-fold range of body length (4.1-8.4 mm). Body shape was dominated by a prothoracic helmet that projected dorsally and posteriorly over the body, and in some species forwards to form a...

Immatures of the New World treehopper tribe Amastrini (Hemiptera, Membracidae, Smiliinae) with a key to genera

The immatures stages of 8 of the 11 genera (Amastris Stål, Bajulata Ball, Erosne Stål, Harmonides Kirkaldy, Idioderma Van Duzee, Neotynelia Creão-Duarte & Sakakibara, Tynelia Stål, and Vanduzea Goding) of the tribe Amastrini are described for the first time along with brief diagnoses of Membracidae and the subfamily Smiliinae. A key to genera and notes on biology are provided. Multiple species ...

ParentÐOffspring Communication in Response to Predators in a Subsocial Treehopper "Hemiptera] Membracidae] Umbonia crassicornis#

The defense of o}spring from predators is an important aspect of maternal care in the treehopper Umbonia crassicornis[ Nymphal o}spring develop in a dense cluster around a host plant stem\ and laboratory studies show that they can solicit maternal defense using synchronized vibrational signals[ Understanding the function of communication\ however\ requires not only an experimental inves! tigati...

Observations of a Subsocial Treehopper, Stalotypa Fairmairii from Cuba (hemiptera: Membracidae)