Numbers
Nearctica.com lists two species for North America: albopunctulata and punctulatus.
Range
Southeastern North America into neotropics
Food
Feeds on plant juices, some association, perhaps, with Spiderwort, Commelina species.
Internet References
USDA Insect Images--image of P. punctulata, gives common name of "Black Stink Bug."
North Carolina State Entomology Collection has the following numbers, both including specimens from that state: albopunctulatus (3), punctulatus (97).
Illustration of P. victor--#18 on that plate from Biologia Centrali Americana