This paper addresses the question of whether one can economically improve the robustness of a molecular phylogeny estimate by increasing gene sampling in only a subset of taxa, without having the analysis invalidated by ...

Background: Researchers conducting molecular phylogenetic studies are frequently faced with the decision of what to do when weak branch support is obtained for key nodes of importance. As one solution, the researcher may ...

Gracillariidae are one of the most diverse families of internally feeding insects, and many species are economically important. Study of this family has been hampered by lack of a robust and comprehensive phylogeny. In the ...

Three new species of Phyllocnistis Zeller are described from the central highlands of Costa Rica: Phyllocnistis drimiphaga sp. n., P. maxberryi sp. n., and P tropaeolicola sp. n. Larvae of all three are serpentine leaf ...