Taxonomic Implications of Sexual Dimorphism in Lufengpithecus

Author(s):  
Jay Kelley
Zootaxa ◽  
2006 ◽  
Vol 1273 (1) ◽  
pp. 1
Author(s):  
DAVID A. BARRACLOUGH

Nycterimyia is a genus of poorly understood and rarely collected Nemestrinidae from scattered localities in the Afrotropical (two species), Oriental (four species) and Australasian (four species) Regions. The Afrotropical species N. capensis is a variable taxon currently recorded from South Africa, Kenya and Madagascar. This paper records a pair of N. capensis collected at the same date and locality (Ranomofana) in Madagascar. The female is the first known from the Afrotropics. There is marked sexual dimorphism in N. capensis; important characters separating the sexes include shape and length of the antennal style, length and distribution of pile on the thorax and abdomen, wing shape, and most importantly distinctive wing patterning. The taxonomic implications of not recognizing sexual dimorphism in the genus are discussed.


2014 ◽  
Vol 28 (6) ◽  
pp. 565 ◽  
Author(s):  
Sebastián Vélez ◽  
Rosa Fernández ◽  
Gonzalo Giribet

Members of the New Zealand Enantiobuninae constitute some of the most charismatic soil arthropods of the archipelago, and a striking example of sexual dimorphism, with nondescript females but colourful males boasting exaggerated chelicerae many times longer than their bodies. The genera Forsteropsalis and Pantopsalis recently underwent revision, but many questions remained about the validity of species designations owing to historical issues of characters of dubious taxonomic value, female specimens designated as holotypes despite the males holding all the diagnostic characters, and the suspected presence of more than one male form within some species. We present the first phylogeny based on molecular data for the New Zealand species in the genera Forsteropsalis, Pantopsalis and Mangatangi, and comment on the taxonomic implications of our results, including the diagnostic viability of important morphological characters. Our analyses reject the monophyly of Neopilionidae and Forsteropsalis, but support the monophyly of Pantopsalis. Finally, we comment on the taxonomic implications of the results, including the diagnostic validity of morphological characters traditionally used on the groups.


Zootaxa ◽  
2018 ◽  
Vol 4402 (3) ◽  
pp. 401 ◽  
Author(s):  
JORGE LLORENTE-BOUSQUETS ◽  
DIANA JIMENA CASTRO-GERARDINO

We present the results of the first examination and comparative analysis of the ultrastructure of the antennae in seven species of Leptidea Billberg, 1820 (Pieridae). The results add further support to the hypothesis that the subfamily Dismorphiinae is composed of the tribes Leptideini and Dismorphiini. We summarize the results in a table and discuss the ultrastructure similarities and differences between the two tribes. Following a previously proposed framework, we trace the progression of character states and discuss the significance of the results in the context of varying phylogenetic hypotheses for Leptidea, with special emphasis on biogeography. We include a brief description of the terms we employ to described the main characters and types of sensilla of the antennal club of Leptidea. Remarkable antennal sexual dimorphism is noted in L. gigantea. 


Author(s):  
I. R. Khuzina ◽  
V. N. Komarov

The paper considers a point of view, based on the conception of the broad understanding of taxons. According to this point of view, rhyncholites of the subgenus Dentatobeccus and Microbeccus are accepted to be synonymous with the genus Rhynchoteuthis, and subgenus Romanovichella is considered to be synonymous with the genus Palaeoteuthis. The criteria, exercising influence on the different approaches to the classification of rhyncholites, have been analyzed (such as age and individual variability, sexual dimorphism, pathological and teratological features, degree of disintegration of material), underestimation of which can lead to inaccuracy. Divestment of the subgenuses Dentatobeccus, Microbeccus and Romanovichella, possessing very bright morphological characteristics, to have an independent status and denomination to their synonyms, has been noted to be unjustified. An artificial system (any suggested variant) with all its minuses is a single probable system for rhyncholites. The main criteria, minimizing its negative sides and proving the separation of the new taxon, is an available mass-scale material. The narrow understanding of the genus, used in sensible limits, has been underlined to simplify the problem of the passing the view about the genus to the other investigators and recognition of rhyncholites for the practical tasks.


2017 ◽  
Vol 17 (1) ◽  
pp. 25-32
Author(s):  
Jacinta Lalchhanhimi ◽  
Lalremsanga H.T.

The breeding biology of tree frog, Polypedates teraiensis was studied during the breeding season at Mizoram University Campus. It was found that sound production by male during the breeding season was primarily a reproductive function and advertisement calls attract females to the breeding areas and announce other males that a given territory is occupied. The aim of this study was to provide the detailed information on the breeding behaviour and the advertisement calls of Polypedates teraiensis. The morphometric measurements of the amplecting pairs (males and females) for sexual dimorphism along with clutch sizes were also studied.


2019 ◽  
Author(s):  
Marcia Hiriart ◽  
Myrian Velasco ◽  
Marcia Hiriart

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