Abstract
Species of the North American genus
Platylygus Van Duzee 1915 are revised.
Redescriptions are given for 5 previously known species, and 26 new species
are described. Nineteen species described by Kelton are:
angulatus,
brevirostris,
longirostris, and
mexicanus from Durango, Mex.;
aztecus from Mexico, Mex.;
chamulans and
chiapasensis from Chiapas, Mex.;
alpinus from Chiapas, Mexico, and Puebla,
Mex.; crassicornis from Mexico and Puebla, Mex.;
pilosus and
teocotae from Mexico, Mex.;
pilosipes from Durango, Mex., and Arizona;
scutellatus from Durango, Mex., Arizona, and
New Mexico; contortae,
crinitus, and
magnus from California;
knighti from Arizona and Colorado;
piceicola from British Columbia, Yukon
Territory, Arizona, and Colorado; pseudotsugae
from British Columbia and Oregon. Seven species described by Knight are:
keltoni from Durango, Mex.;
andrei from Arizona;
balli from Arizona, Colorado, and New Mexico;
hirtus from Arizona;
rolfsi from British Columbia, California,
Oregon, and Washington; rubripes from Alberta,
British Columbia, California, Colorado, Oregon, and Wyoming; and
usingeri from California. The other species
in the genus are: fuliginosus Knight from
Arizona; grandis Knight from Arizona, California,
and Colorado, Montana, and South Dakota;
intermedius Knight from Arizona, Colorado and
New Mexico; luridus (Reuter) from Alberta,
British Columbia, Manitoba, New Brunswick, Nova Scotia, Ontario, Quebec,
Saskatchewan, Yukon Territory, Arizona, Colorado, Illinois, New Hampshire,
New Mexico, New York, and Wyoming; and vanduzeei
Usinger from Arizona, California, Colorado, New Mexico, Nevada, and Utah.
Platylygus uhleri (Van Duzee) is considered
to be a synonym of P.
luridus (Reuter). A key to species, records
on distribution and biological data are included, and the male genitalia of
all but one species are illustrated.