Abstract
The aim of this paper is to shed light on the boundaries of two sympatric species of Cuernavaca, C. inexacta and C. longula, to enable further ecological studies. Species in this genus are associated with water hyacinths in wetlands of Northeastern Argentina (Paraná-Paraguay waterway system) and the Peruvian Amazon. This work lists new host records for Cuernavaca, which include Pontederia crassipes, P. cordata, P. subovata and P. rotundifolia (Pontederiaceae). A redescription for C. inexacta with new diagnostic genitalic features is also provided, as well as an updated identification key and a distribution map. The genus is distributed throughout Central and South America, reaching north and central Argentina in its southernmost distribution.
Highlights
Dictyopharidae is the 6th largest family of planthoppers (Bartlett, 2018; Bourgoin, 2016; Song et al, 2014, 2016a, 2016b, 2018; Urban & Cryan, 2009)
Specimens studied in the course of this work are deposited in the following institutions, which are subsequently referred to by their acronyms: British Museum of Natural History (BMNH), London, UK; Muséum National d’Histoire Naturelle (MNHN), Paris, France and Museo de Ciencias Naturales de La Plata (MLPA), Argentina
1. Uniformly green with a pair of small dark spots on each side of mesonotum; male with gonostyles shorter than anal segment, suboval; females with strongly elongated anal segment, 5 times its width; long and straight gonapophyses VIII with a row of strong
Summary
Dictyopharidae is the 6th largest family of planthoppers (Bartlett, 2018; Bourgoin, 2016; Song et al, 2014, 2016a, 2016b, 2018; Urban & Cryan, 2009). It is mainly distributed in tropical and subtropical regions, and it currently includes two subfamilies: the Orgeriinae (192 species, 52 genera and subgenera within 4 tribes), which is restricted to arid zones of the Holartic region, and the cosmopolitan and diverse Dictyopharinae, comprising more than 520 species and 127 genera within 15 tribes (Song et al, 2018). Taosa (Distant, 1906), was initially revised by Muir (1931), who distinguished 12 species based on the shape and carination of head. Metcalf (1945) established Cuernavaca Kirkaldy (1913) as a subgenus of Taosa to in-
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