The prickly blade mapped: establishing homologies and a chaetotaxy for macrosetae of penis ventral plate in Gonyleptoidea (Arachnida, Opiliones, Laniatores)

  title={The prickly blade mapped: establishing homologies and a chaetotaxy for macrosetae of penis ventral plate in Gonyleptoidea (Arachnida, Opiliones, Laniatores)},
  author={Adriano Brilhante Kury and M Osvaldo Villarreal},
  journal={Zoological Journal of the Linnean Society},
For the first time a hypothesis of homology is proposed for the macrosetae which compose the armature of the distal truncus penis of the Gonyleptoidea. Previous attempts to name them in the literature have not been continued because they started by referring to macrosetae based on their position, which may change widely, and all of them were very narrow in scope. The present project instead names groups of macrosetae that do not mandatorily refer to their position, thus compensating for their… 

The genus Eurytromma from Sri Lanka: the homology of penial macrosetae in Podoctidae matches the gonyleptoid AE11 pattern (Opiliones: Laniatores: Epedanoidea)

AE11 is more phylogenetically widespread in the Grassatores than previously thought and furthermore, a further refinement is made on the current terminology system of cheliceral dentition of Podoctidae.

A classification of the penial microsetae of Gonyleptoidea (Opiliones: Laniatores).

The macrosetae of the ventral plate of Laniatores penis have been occasionally described and used for systematic purposes in the literature, to the point of having a whole system created for them in

Further dismemberment of Discocyrtus with description of a new Amazonian genus and a new subfamily of Gonyleptidae (Opiliones, Laniatores)

A group of Amazonian harvestmen is recognized and described as Amazochroma gen. nov, expanding its distribution from the Brazilian state of Mato Grosso northwards also to Para and Amazonas in Brazil and additionally French Guiana and Suriname.

New record for the genus Platymessa Mello-Leitão, 1941 in Colombia, with the description of a new species (Opiliones, Cosmetidae)

Abstract The genus Platymessa Mello-Leitão, 1941 is represented by two species in the Andes of Colombia: P. h-inscriptum Mello-Leitão, 1941 and P. ectroxantha Mello-Leitão, 1941. Platymessa victoriae

Conspecificity of semaphoronts – the synonymy of Metadiscocyrtus with Propachylus (Opiliones: Laniatores: Gonyleptidae)

The harvestman genus Propachylus Roewer, 1913 is herein revalidated from the synonymy of Discocyrtus Holmberg, 1878 and the males and females of this species are considered congeneric for the first time.

Description and phylogenetic positioning of a new species of Heteropachylus Roewer, 1913 (Opiliones, Gonyleptidae, Heteropachylinae)

ABSTRACT Heteropachylus Roewer is the type genus of Heteropachylinae Kury, endemic to the Atlantic forest, Brazil. Heteropachyline males bear free tergites at least partially fused to dorsal scutum,

The phylogeny and evolution of the flashiest of the armored harvestmen (Arachnida: Opiliones).

There is evidence for one colonization of today's temperate zone early in the history of Gonyleptidae, during the Paleogene, at a time when the Neotropical area extended poleward into regions now considered temperate, providing a possible mechanism for the colonization of the extratropics by a tropical group following the Paleocene-Eocene Thermal Maximum.

A companion to Part 2 of the World Checklist of Opiliones species (Arachnida): Laniatores – Samooidea, Zalmoxoidea and Grassatores incertae sedis

This paper containing nomenclatural acts is meant to accompany Part 2, which includes the members of the infraorder Grassatores of the superfamilies Samooidea and Zalmoxoidea plus the Grassatore currently not allocated to any family (i.e. Grassators incertae sedis).



systematic revision of Goniosomatinae (Arachnida : Opiliones : Gonyleptidae), with a cladistic analysis and biogeographical notes

A cladistic analysis and taxonomic revision of the species of Goniosomatinae and a new arrangement of genera (and species) are provided and the main taxonomic changes are given.

Early lineages of Gonyleptidae (Arachnida Opiliones Laniatores)

As result of cladistic methodology applied to the study of Gonyleptidae, four precocious branches are newly recognized in the phylogeny of the family. Three new subfamilies are proposed and diagnosed

Revision of the cranaid genera Phalangodus, Iquitosa and Aguaytiella (Opiliones: Laniatores: Gonyleptoidea).

Data of male genitalia of Iquitosa and Aguaytiella is reported, providing redescriptions and diagnoses of those genera and species, and a discussion of their relationship with other cranaids.

The ecological tale of Gonyleptidae (Arachnida, Opiliones) evolution: phylogeny of a Neotropical lineage of armoured harvestmen using ecological, behavioural and chemical characters

This work used the information available in the literature and an intensive search for ecological, behavioural and chemical data to infer the phylogeny of the Gonyleptidae, and obtained five most parsimonious trees and the strict consensus resulted in six collapsed nodes.

Systematic review of the neotropical family stygnidae: (opiliones, laniatores, gonyleptoidea)

A new classification is herein proposed based on a cladistic analysis using 35 terminals and 50 characters of external morphology and male genitalia that forms the basis of the supraspecific classification of Stygnidae.

A new subfamily of Agoristenidae, with comments on suprageneric relationships of the family (Arachnida Opiliones Laniatores)

The concept of the hitherto monotypic genus Zamora Roewer 1927 is expanded to include Z granulata, the type species and Zamora vulcana, a new species described from the volcano Cotopaxi, Ecuador, which suggests that Zamorinae is a basal group in the Agoristenidae.

Species relationships in the Neotropical genus Phareicranaus Roewer 1913 (Opiliones: Cranaidae): two new species and new data from Penial morphology

A reanalysis of the species relationships in the genus Phareicranaus Roewer, 1913, here considered the senior synonym of Acanthocranaus, is carried out, using information unavailable in a previous analysis (of Santinezia); subfamilies Cranainae and Prostygninae may be not monophyletic.

Description and phylogenetic position of a new species of Metarthrodes (Opiliones: Gonyleptidae: Caelopyginae) from Bahia, northeastern Brazil

We describe Metarthrodes oxum sp. nov. from Camacan, state of Bahia, Brazil, the second species of Caelopyginae described from the state, after Metarthrodes xango Pinto-da-Rocha, 2002. Metarthrodes

Why does the Tricommatinae position bounce so much within Laniatores? A cladistic analysis, with description of a new family of Gonyleptoidea (Opiliones, Laniatores)

The first cladistic analysis of the Tricommatinae is presented here based on a matrix with 88 terminals and 117 characters. The subfamily, hitherto with 28 genera and 53 species, is not recovered as

Fissiphalliidae, a new family of South American laniatorean harvestmen (Arachnida: Opiliones)

It is shown that male genitalic characters in Opiliones display clear functional and constructional traits on the family level, and will demonstrate that several families in gonyleptoid Laniatores are polyphyletic and should be divided into several taxa of the familylevel.