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Creators/Authors contains: "Cassel, Brian_K"

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  1. Abstract The Miltogramminae (Diptera: Sarcophagidae) includes ~600 species across >40 genera, which constitute ~20% of global Sarcophagidae. While molecular phylogenetic hypotheses have been produced for this group, critical problems persist, including the presence of paraphyletic genera, uncertain relationships between genera, a bias of sampling towards Palaearctic taxa, and low support for many branches. The present study remedies these issues through the application of Anchored Hybrid Enrichment (AHE) to a sample including ~60% of the currently recognised genera (16% of known species) representing all biogeographic regions except the Neotropical. An alignment of 1,281 concatenated loci was analysed with maximum likelihood (RAxML, IQ‐TREE), Bayesian inference (ExaBayes) and coalescent‐based approaches (ASTRAL, SVDquartets), which resulted in highly supported and concordant topologies, providing unprecedented insight into the relationships of this subfamily of flesh flies, allowing a major update to miltogrammine classification. The AHE phylogenetic hypothesis supports the monophyly of a large proportion of genera. The monophyly ofMetopiaMeigen is restored by synonymy withAenigmetopiaMalloch,syn.n.To achieve monophyly ofMiltogrammaMeigen, eight species are transferred fromPterellaRobineau‐Desvoidy. The genusPterellais shown to be paraphyletic in its current circumscription, and to restore generic monophylyPterellais restricted to contain onlyPt. grisea(Meigen).ErioproctaEnderlein,stat.rev., is resurrected. The genusSenotainiaMacquart is reconstructed as paraphyletic. The monotypic genusMetopodiaBrauer & Bergenstamm is synonymised withTaxigrammaMacquart,syn.n.In light of our phylogenetic hypotheses, a new Miltogramminae tribal classification is proposed, composed of six tribes. 
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  2. Abstract The genusLiriomyzaMik (Diptera: Agromyzidae) is a diverse and globally distributed group of acalyptrate flies. Phylogenetic relationships amongLiriomyzaspecies have remained incompletely investigated and have never been fully addressed using molecular data. Here, we reconstruct the phylogeny of the genusLiriomyzausing various phylogenetic methods (maximum likelihood, Bayesian inference, and gene tree coalescence) on target‐capture‐based phylogenomic datasets (nucleotides and amino acids) obtained from anchored hybrid enrichment (AHE). We have recovered tree topologies that are nearly congruent across all data types and methods, and individual clade support is strong across all phylogenetic analyses. Moreover, defined morphological species groups and clades are well‐supported in our best estimates of the molecular phylogeny.Liriomyza violivora(Spencer) is a sister group to all remaining sampledLiriomyzaspecies, and the well‐known polyphagous vegetable pests [L. huidobrensis(Blanchard),L. langeiFrick,L. bryoniae.(Kaltenbach),L. trifolii(Burgess),L. sativaeBlanchard, andL. brassicae(Riley)]. belong to multiple clades that are not particularly closely related on the trees. Often, closely relatedLiriomyzaspecies feed on distantly related host plants. We reject the hypothesis that cophylogenetic processes betweenLiriomyzaspecies and their host plants drive diversification in this genus. Instead,Liriomyzaexhibits a widespread pattern of major host shifts across plant taxa. Our new phylogenetic estimate forLiriomyzaspecies provides considerable new information on the evolution of host‐use patterns in this genus. In addition, it provides a framework for further study of the morphology, ecology, and diversification of these important flies. 
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