Members of the deltocephaline leafhopper genus Giprus Oman
live on grasses, primarily in the desert-scrub, chaparral, and
marine sand dune communities of western North America. Of 16
known species, 10 are undescribed. Recharacterization of the genus
results in exclusion of Laevicephalus incongruus Oman. Differentiation
of species is primarily dependent on...
Reinterpretation of the leafhopper tribe Scaphytopiini reveals it
to be primarily a New World taxon with only limited representation in
the Palearctic, Oriental and possibly Ethiopian regions. Approximately
75 species assigned to three genera are known from the United
States and Canada with at least another 75 species representing an...
The subfamily Aphrodinae is represented in the Nearctic Region by eight species contained in a single tribe, Aphrodini, and genus Aphrodes. The external and internal morphology, biology and ecology of the Nearctic members of the genus Aphrodes were investigated. Distributional evidence indicates that six of the eight species, belonging to...
The genus Tiaja Oman consists of eight known species of flightless
leafhoppers of the subfamily Megophthalminae found along the
western coast of North America between British Columbia and
northern Mexico. Species occurring from the San Francisco Bay
area northward are restricted to a narrow coastal zone within 1 km of...
The Nearctic leafhoppers placed in the genus Sorhoanus Ribaut
by Oman (1949) were found to belong to several genera, some of
which are Holarctic in distribution. None is properly placed in
Sorhoanus as presently defined. The genera Sorhoanus, Zelenius
Emel'yanov, Boreotettix Lindberg, Lebradea Remane, and Acharis
Emel'yanov are redefined and...