Facial affect recognition in individuals at clinical high risk for psychosis
Author
Perkins, Philip D.
text
Zootaxa
2008
2008-09-03
1864
1
124
http://dx.doi.org/10.17615/mqt8-8z21
journal article
10.17615/mqt8-8z21
11755334
5133132
Parasthetops
Perkins & BalfourBrowne, 1994
Parasthetops
Perkins & BalfourBrowne, 1994: 37
(
type
species
Parasthetops nigritus
Perkins & BalfourBrowne, 1994
).
The genus
Parasthetops
comprises 21 species, including 13 new species described below. The genus has a wide distribution in
South Africa
and
Namibia
(
Fig. 88
), and there is one known locality in
Zimbabwe
. The majority of species and specimens have been collected from stones in the current of streams or rivers. New distribution records for four of the eight previously described species of
Parasthetops
are given below. New locality records are not yet available for the following species (
Perkins & BalfourBrowne, 1994
; map figures in parentheses):
P
.
andreaei
(
Fig. 93
),
P. camurus
(
Fig. 100
),
P. reflexus
(
Fig. 94
), and
P
.
rufulus
(
Fig. 94
).
The division of
Parasthetops
species
into groups is herein based primarily on dorsal sculpture and general body form. In most groups the form of the male genitalia corroborate the placement of species. In other cases, however, there is considerable difference in aedeagal form within a species group. For example, the aedeagi of the three species in the
camurus
group (
Figs. 33–35
) are quite dissimilar from one another; however, none of the three show any obvious similarity to the aedeagi of species in other groups. Additional study is needed to confirm the composition of some of the species groups. Perhaps additional groups will become evident when more new species are discovered.