Delineating species boundaries in phylogenetic groups undergoing recent radiation is a
daunting challenge akin to discretizing continuity. Here, we propose a general approach …

Historical museum specimens are valuable for exploring population genetics and
evolutionary questions because they can provide snapshots of morphological and genetic …

The American southwest and northern Mexico has a great degree of endemic diversity
compared with the rest of North America. The Pleistocene glaciations and the dispersal of …

Abstract The New World buckeye butterflies (genus Junonia) are valuable experimental
model organisms, but the taxonomy of this group has been problematic and contentious. I …

South Florida is a renowned 'hotspot'for rare and endemic taxa, with insects and plants
found in few other ecosystems. Specialized species evolved in Florida's stochastic climate …

Ring species were long considered to illustrate a particular way in which species
biodiversity can be generated by biogeographical processes, species divergence, and …

Many disparate hypotheses have been proposed for the phylogenetic relationships within
the butterfly genus Junonia (Nymphalidae), yet there remains no consensus. Most …

The tropical buckeye, Junonia zonalis (Lepidoptera: Nymphalidae) is a recent addition to the
butterfly fauna of mainland Florida. It appears that this species began to invade the mainland …