Harald Letsch
University of Vienna
Phylogenetic treePhylogenomicsEvolutionary biologyBiologyPhylogenetics
What is this?
Publications 25
#1Duane D. McKenna (U of M: University of Memphis)H-Index: 17
#2Seunggwan Shin (U of M: University of Memphis)H-Index: 7
Last. Rolf G. Beutel (FSU: University of Jena)H-Index: 42
view all 24 authors...
The order Coleoptera (beetles) is arguably the most speciose group of animals, but the evolutionary history of beetles, including the impacts of plant feeding (herbivory) on beetle diversification, remain poorly understood. We inferred the phylogeny of beetles using 4,818 genes for 146 species, estimated timing and rates of beetle diversification using 89 genes for 521 species representing all major lineages and traced the evolution of beetle genes enabling symbiont-independent digestion of lign...
7 CitationsSource
#1Sabrina Simon (WUR: Wageningen University and Research Centre)H-Index: 12
#2Harald Letsch (University of Vienna)H-Index: 12
Last. Sven Bradler (GAU: University of Göttingen)H-Index: 15
view all 13 authors...
Phasmatodea comprises over 3,000 extant species and stands out as one of the last remaining insect orders for which a robust, higher-level phylogenetic hypothesis is lacking. New research suggests that the extant diversity is the result of a surprisingly recent and rapid radiation that has been difficult to resolve with standard Sanger sequence data. In order to resolve the early branching events of stick and leaf insects, we analyzed transcriptomes from 61 species, including 38 Phasmatodea spec...
#1Benjamin Wipfler (FSU: University of Jena)H-Index: 17
#2Harald Letsch (University of Vienna)H-Index: 12
Last. Sabrina Simon (WUR: Wageningen University and Research Centre)H-Index: 12
view all 25 authors...
Polyneoptera represents one of the major lineages of winged insects, comprising around 40,000 extant species in 10 traditional orders, including grasshoppers, roaches, and stoneflies. Many important aspects of polyneopteran evolution, such as their phylogenetic relationships, changes in their external appearance, their habitat preferences, and social behavior, are unresolved and are a major enigma in entomology. These ambiguities also have direct consequences for our understanding of the evoluti...
12 CitationsSource
#1Valentina Todisco (University of Vienna)H-Index: 1
#2Andrea Grill (University of Vienna)H-Index: 12
Last. Harald Letsch (University of Vienna)H-Index: 12
view all 8 authors...
The Palaearctic butterfly genus Pseudophilotes Beuret, 1958 (Lycaenidae: Polyommatinae), that today occurs in North Africa and in Eurasia, includes ten described species with various distribution ranges, including endemics such as the Sardinian P. barbagiae. Phylogenetic relationships among these species are largely unresolved. In the present study, we analysed 158 specimens, representing seven species out of ten described in the genus, from widely distributed sites throughout the western Palaea...
1 CitationsSource
#1Harald Letsch (University of Vienna)H-Index: 12
#2Brigitte Gottsberger (University of Vienna)H-Index: 4
Last. Konrad Fiedler (University of Vienna)H-Index: 42
view all 7 authors...
5 CitationsSource
#1Duane D. McKenna (U of M: University of Memphis)H-Index: 17
#2Dave J. Clarke (U of M: University of Memphis)H-Index: 6
Last. Guanyang Zhang (UF: University of Florida)H-Index: 1
view all 25 authors...
The 2016 International Weevil Meeting was held immediately after the International Congress of Entomology (ICE). It built on the topics and content of the 2016 ICE weevil symposium Phylogeny and Evolution of Weevils (Coleoptera: Curculionoidea): A Symposium in Honor of Dr. Guillermo "Willy” Kuschel. Beyond catalyzing research and collaboration, the meeting was intended to serve as a forum for identifying priorities and goals for those who study weevils. The meeting consisted of 46 invited and co...
3 CitationsSource
#1Sven Winter (University of Vienna)H-Index: 1
#2Ariel L. L. Friedman (TAU: Tel Aviv University)H-Index: 2
Last. Harald Letsch (University of Vienna)H-Index: 12
view all 5 authors...
Abstract Host plant shifts of insects can lead to a burst of diversification driven by their arrival in a new adaptive zone. In this context, our study aims to explore timing and patterns in the evolution of the weevil tribe Apionini (Brentidae, Curculionoidea, Coleoptera), particularly in relation to affiliations with their host plants. The classification of Apionini is difficult because of their relatively uniform appearance. Most taxa live mono- or oligophagously on members of Asteraceae or F...
7 CitationsSource
#1Harald Letsch (University of Vienna)H-Index: 12
#2Brigitte Gottsberger (University of Vienna)H-Index: 4
Last. Jessica L. Ware (RU: Rutgers University)H-Index: 15
view all 3 authors...
Ecological diversification of aquatic insects has long been suspected to have been driven by differences in freshwater habitats, which can be classified into flowing (lotic) waters and standing (lentic) waters. The contrasting characteristics of lotic and lentic freshwater systems imply different ecological constraints on their inhabitants. The ephemeral and discontinuous character of most lentic water bodies may encourage dispersal by lentic species in turn reducing geographical isolation among...
20 CitationsSource
#1Karl M. Kjer (UC Davis: University of California, Davis)H-Index: 28
#2Jessica L. Ware (RU: Rutgers University)H-Index: 15
Last. Bernhard MisofH-Index: 40
view all 27 authors...
Tong et al. comment on the accuracy of the dating analysis presented in our work on the phylogeny of insects and provide a reanalysis of our data. They replace log-normal priors with uniform priors and add a “roachoid” fossil as a calibration point. Although the reanalysis provides an interesting alternative viewpoint, we maintain that our choices were appropriate.
10 CitationsSource
#1Hossein Rajaei (AMNH: American Museum of Natural History)H-Index: 4
#2Carola GreveH-Index: 9
Last. Bernhard MisofH-Index: 40
view all 7 authors...
Since its discovery and description, the oriental moth Pseudobiston pinratanai Inoue, 1994, could not be placed in any of the recognized families of Macroheterocera (Lepidoptera). Here, we used molecular and morphological data to infer the phylogenetic position of the species. These analyses indicate that Pseudobiston pinratanai is closely related to Epicopeiidae. Our analyses of morphological characters further show that Pseudobiston pinratanai+Epicopeiidae share synapomorphies with Sematuridae...
10 CitationsSource