Remarks on some interesting African Pamphagidae and Acrididae (Insecta Orthoptera: Acridoidea)
Author
Massa, Bruno
text
Zootaxa
2020
2020-03-16
4751
1
29
54
journal article
10.11646/zootaxa.4751.1.2
c1ddd833-efa5-4a0c-bb3b-558198c129ae
1175-5326
3711774
70E7D492-5647-4BCE-93F5-430AE5AD63BA
Pagopedilum sabulosum
(Stål, 1875)
new status
(Figs. 17-20, 25-28, 35-40)
Material examined:
11 specimens
.
Namibia
,
Tsumeb
30.III.1929
,
G. Meyer
(
1♀
)
;
Namibia
,
Usakos
22.IV- 22.
VI
.1911, W. Michaelsen (
1♀
);
Namibia
,
Okahandja
(
1♂
)
;
Namibia
,
Farm Okahundua
,
Post Okahandja
II-
III.1934
,
W. Krieg
(
1♂
)
;
Namibia
,
Karibib
23-26.IV.1911
,
W. Michaelsen
(
1♂
)
;
Angola
,
Capolopopo
,
140 km
SW of Mocamodes
1.VI-15.VII.1959
(
1♀
) (
ZMUH
)
;
Namibia
,
Okakujeo
(
South of Etosha Pan
)
VI
.2009, U.
Pessolano
(
1♀
) (
BMPC
)
;
Namibia
,
Okahandja
III.1928
(
1♀
)
;
Namibia
,
Grootfontein
XI.1928
(
3♀
) (
MZUR
)
.
Remarks
. Even if rather variable, the male of
P. sabulosum
is quite well characterized by short tegmina [ac- cording to
Dirsh (1958)
they reach middle of the 5
th
abdominal tergite, but the males from Okahandja, above listed, have tegmina exceeding the 8
th
abdominal tergite, just shorter than abdomen], and a variable number of apical spines on the posterior margin of the pronotum. However, this species is variable also in the length of antennae, that may or may not exceed mid coxae, and in the epiphallus hind margin (concave or straight; see Figs. 37, 40). It is possible that the few specimens so far studied may belong to different species, but for the moment it is preferable to consider them within the variability of only one species.
FIGS. 29-40.
Genitalia of
Pagopedilum
. Lateral view of the phallic complex (29, 32, 35, 38), frontal view of the aedeagus sclerites (30, 33, 36, 39) and dorsal view of the epiphallus (31, 34, 37, 40) of
P. bradyanum
(29, 30, 31),
P. brevis
(32, 33, 34) and two specimens of
P. sabulosum
(35, 36, 37 and 38, 39, 40, respectively).
The male specimen from Tsumeb (
Namibia
) was pinned together with a big unidentified
Hymenoptera
Sphecidae
found on it in the field; it is probably a predator of this species, whose body might be consumed by its offspring.
The males of the other species previously described in the genus
Stolliana
, now transferred to
Pagopedilum
, differ from
P. sabulosum
in being macropterous; in addition,
P. angusticornis
(Fig. 14) has short antennae and
P. minor
(Fig. 15) has a small body size (
Dirsh 1958
). Concerning
P. giliomeei
(Fig. 16), the male is characterized by a higher crest than previous species, but smaller in size than in
P. bradyanum
and
P. brevis
(Figs. 5, 6).
Females are apterous and generally are difficult to identify (cf. Figs. 25-28).
Distribution
.
P. sabulosum
was known only from
Namibia
and now it is recorded also from
Angola
.
Measurements
. See
Table 1
.