Isocarpha
They are native to Mexico , Central America , the West Indies , and northern South America , with the range of one species extending north into the United States . 
<triplet> Mexico <subj> United States <obj> shares border with <triplet> Central America <subj> South America <obj> shares border with <triplet> South America <subj> Central America <obj> shares border with <triplet> United States <subj> Mexico <obj> shares border with