Abstract
A new species of Oeda Amyot & Serville, 1843 - Oeda (Oeda) mielkei sp. nov. from Peru, Madre de Dios, 12°52'S, 71°22'W - is described. It differs from the other species of O. (Oeda) in having the inflated pronotal process more elongate, and amber color; the suprahumeral horns are much more developed, club-shaped, about as long as the width of head, forming an arch with the tips touching each other; the metopidium, in lateral view, is almost vertical above head. A key, including images of all species (except O. mirandai Fonseca) are also provided.
Highlights
Oeda Amyot & Serville, 1843 is one of the most distinctive and remarkable of all treehopper genera
The function of the bizarre pronotal modifications in the genus are unknown but previous authors have speculated that they mimic plant parts or that the inflated pronotal process breaks off as a defense mechanism against predators (CRYAN & DEITZ 1999)
FAIRMAIRE (1846) reorganized the so called “Tribu des Membracides” and, in regard to Oeda, he redescribed the genus together with O. inflata (Fabricius), and included two other species: Oeda inermis, a new one from Brazil, characterized as “thorace antice inermis”, and O. informis (Westwood) whose description the author sent to Fairmaire – “Albida, pronoto maximo valde inflato, totum corpus obtegente, in medio constricto, et ad apicem spina armato; dorso irregulariter areolato; areis, praesertim posticis, maximis, fusco interdum marginatis et maculatis; alis anticis venis crassis punctoque subapicali fuscis.”
Summary
Oeda Amyot & Serville, 1843 is one of the most distinctive and remarkable of all treehopper genera. AMYOT & SERVILLE (1843) created Oeda to include Fabricius’ species Membracis inflata. Proposed a new name for this species – Oeda hamulata (replacement name for O. inflata Fairmaire, 1846 nec Fabricius, 1787).
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