Lispe (Diptera, Muscidae) of Africa
Author
Vikhrev, Nikita E.
text
Amurian Zoological Journal
2021
XIII
3
369
400
http://dx.doi.org/10.33910/2686-9519-2021-13-3-369-400
journal article
10.33910/2686-9519-2021-13-3-369-400
2686-9519
12816585
A1FD5F19-4965-42CD-AAC6-4914E21FA70A
Lispe capensis
Zielke, 1971
Figs 17–21
Lispe capensis
Zielke, 1971
Material examined
:
NAMIBIA
:
Walvis Bay
env.,
22.97
°
S
14.54
°
E
,
5–9 December 2018
,
N. Vikhrev
,
16♂
,
26♀
; Luderitz env.,
26.61
°
S
15.19
°
E
, sewage fields,
20–22 January 2021
,
N. Vikhrev
,
2♀
(all
ZMUM
)
.
Distribution
. Reliably known from
South Africa
and
Namibia
. For the collecting site in
Namibia
see the notes on the
type
locality of
L. polonaise
sp. nov.
REDESCRIPTION.
Male
. Body size —
5.5– 6 mm
.
Head
. Frontal triangle shining black, interfrontalia matte black, fronto-orbital plate shining black but grey dusted in anterior half; parafacials and face whitish-grey, occiput grey. Antennae black. Arista in basal half with hairs 0.5x as long as width of antenna, in apical half bare. Vibrissae strong. Palpi covered with dark grey pollinosity, yellowish on margins.
Thorax
black, scutum shining, pleura grey dusted.
dc
2+3 all strong; anepimeron with about 12 setulae; meron above hind coxa with 4–5 hairs; katepimeron with 2(3) hairs in posterior half; scutellum bare on ventral surface. Wings brownish-hyaline, calypters whitish-yellow, halter yellow.
Legs
with coxa, trochanters and femora black; tibiae and tarsi yellow (mid and hind tarsi dorsally darkened).
t1
without seta.
t2
with 1
p
and in some specimens with additional seta on
p
,
pv
or
v
position; hind coxa bare;
f3
at apex with 1
av
and 1–2
pv
, otherwise bare;
t3
with 1
ad
; tarsi unmodified.
Abdomen
with colour pattern similar to that of
L. nana
(
Figs 17, 18
): tergites 3 and 4 mainly black with three whitish spots, a pair of antero-lateral ones and rounded postero-median one. Tergite 5 with a pair of large rounded anterolateral spots. Abdominal tergite 3 without a pair of small rounded knob-like process at each ventral fore-marginal corner (characteristic for
L. nana
). Sternite 5 with strong medial process clearly visible on intact abdomen. Cercal plate and sternite 5 as shown in
Fig. 21
.
Female
differs as follows. Body size
5.7– 6.5 mm
. Tarsi darkened. Scutum with the median pruinose patch at level of 2
nd
and 3
rd
post dc
, typical for females
L. tentaculata
and
L. draperi
. Normally 2+3
dc
, but some specimens have additional weak pair between 1
st
and 2
nd
post dc
and may be described as
dc
2+4. Abdominal pattern similar to that of the male but less contrasting black-white, more greyish (
Fig. 19
).
Figs 16–21.
L. argentata
(
16
):
16
— male, general view;
L. capensis
(
17–21
):
17
— male, general view;
18
— male abdominal pattern;
19
— female abdominal pattern;
20
— male cercal plate and sternite 5 (from Zielke 1971);
21
— male cercal plate and sternite
Рис. 16–21.
L. argentata
(
16
):
16
— самец, общий виΔ;
L. capensis
(
17–21
):
17
— самец, общий виΔ;
18
— брюшко самца;
19
— брюшко самки;
20
— церки и стернит 5 (по Zielke 1971);
21
— церки и стернит 5
Remarks
.
L. capensis
was described from
6♂
and
6♀
from
Cape
Town,
South Africa
. The following characters from
Zielke’s (1971b)
description fit our Namibian series:
6–7 mm
; palpi dark, femora dark, tibiae and tarsi yellow;
t1
without seta;
t2
with
p
;
f3
at apex with 1
av
and 2
pv
;
t3
with 1
ad
; cercal plate as in
Fig. 20
. On the other hand, Zielke indicated 2+4
dc
; did not mention the presence on the female scutum of the pruinose patch and drew unprecedented paired internal processes on sternite 5 (
Fig. 20
). However, our
Walvis Bay
series has a very characteristic medial process on male sternite 5, it looks very similar to those on Zielke’s drawing, and I believe that duplication of the process has been a result of some funny error. Note also the remarks below to
L. aurocochlearia
Seguy, 1950
, probably
L. capensis
is not the oldest name for the taxon.
Vikhrev (2014)
supposed a close relationship between
L. nana
and
L. tentaculata
group, the intermediate characters of
L. capensis
support this hypothesis.