New Oriental Species And Records Of Sphaerocerinae And Copromyzinae (Diptera: Sphaeroceridae)
Author
Papp, L.
text
Acta Zoologica Academiae Scientiarum Hungaricae
2003
49
1
71
85
journal article
10.5281/zenodo.12587208
2064-2474
12587208
Metaborborus flavior orientalis
ssp. n.
(
Figs 14–23
)
Holotype
male (
HNHM
):
Nepal
,
Royal Chitwan National Park
,
Bandarjhola Island
– Jungle Island Resort,
84°10’E
,
27°35’N
,
150 m
,
1995.10.30
. – swept
on
Elephas maximus
dung, leg.
L. Peregovits
[abdomen with genitalia in a plastic microvial with glycerol, left hind leg glued on the card below]
.
Paratype
female (
HNHM
): data same as for holotype
.
Measurements in mm (measured in alcohol before minuten-pinning): body length 1.34
(
holotype
), 1.55 (
paratype
), wing length 1.38, 1.34, wing width 0.53, 0.60.
Body characteristics are the same as in
M. flavior
(
VANSCHUYTBROECK
)
, though thorax and abdominal tergites seem darker brown than the African specimens.
Head all bare, shiny, without antenna slightly longer than high (0.30 vs
0.29 mm
), vibrissa
0.207 mm
long, arista
0.26 mm
long, longest rays ofarista
0.048 mm
. Ocellars in line ofanterior ocellus, consequently lateral to the line from anterior to posterior ocelli, postocellars slightly anterior to verticals, 4 interfrontal pairs. Gena extremely narrow, height only 1/9 height of eye.
Mesonotum mostly bare, shiny. 1+2 pairs ofdorsocentrals, anterior dorsocentrals longer than prescutellars. Two acrostichal rows.
Figs 14–23.
Metaborborus
spp.
, male genitalia. 14–18 =
M. flavior orientalis
ssp. n.
, holotype: 14 = left surstylus, broadest extension, 15 = apex of left surstylus, higher magnification, 16 = right surstylus, broadest extension, 17 = apex ofright surstylus, higher magnification, 18 = postgonite, broadest extension. 19–23 =
M. flavior
(
VANSCHUYTBROECK
, 1959)
, Tanzania: 19 = left surstylus, broadest extension, 20 = apex of left surstylus, higher magnification, 21 = right surstylus, broadest extension, 22 = apex ofright surstylus, higher magnification, 23 = postgonite, broadest extension.
Scales:
0.2 mm
for
Figs 14, 16, 19, 21
,
0.1 mm
for
Figs 15, 17, 20, 22
and
Figs 18, 23
, respectively
Femora and tibiae shiny, bare. No posteroventral seta on mid tibia. Hind femur extremely thick in both sexes,
0.40 mm
long and
0.10 mm
thick in
holotype
, longest dorsal seta
0.11 mm
, ventral spur
0.10 mm
, seta proximal to spur
0.12 mm
long. Wing evenly infuscated light brown, veins light brown, M vein ratio
0.414
/
0.362
mm
, i.e. 1.143, lower edge ofdiscal cell rounded.
Abdominal tergites 3–5 pruinose. Male surstyli asymmetrical (
Figs 14–15
vs 16–17, etc). Surstyli (
Figs 14–17
) with more numerous and longer setae on apical part than in
M. flavior
(African specimens, e.g. ours from
Tanzania
,
Figs 19–22
). Left surstylus with shorter and more rounded medial subapical process (
Figs 14–15
, cf.
Figs 19–20
), apical process also broader and widely rounded apically, contrary to that of
M. flavior
, practically there is no lateral subapical process in the new subspecies, unlike
M. flavior
. Right surstylus (
Figs 16–17
, cf.
Figs 21–22
) with somewhat shorter medial subapical process, apical process slightly lateroclinate (straight and almost parallel-sided in
M. flavior
) practically no lateral subapical process, (a definite process in
M. flavior
). Postgonite (
Fig. 18
) with a broader apical part viewed when seen in its broadest extension, compared to
M. flavior
(
Fig. 23
).
Female abdominal tergites less broad than abdomen, i.e. membraneous parts are also visible dorsally. Three long hair-like setae on cercus, longest one
0.216 mm
long.
NORRBOM
and
KIM
(1985
b
)
produced an excellent key to the
Metaborborus
species.
This new form keys readily to
M. flavior
. However, the differences in details ofits genitalia (surstyli, postgonite) do not allow us to name it simply as
M. flavior
. In several other groups of sphaerocerid flies, the measure of differences found would be sufficient to name it as a separate species. However, since
NORRBOM
and
KIM
(1985
b
)
did not separate their specimen from Tambunan (Sabah) specifically from the African ones, I prefer to describe the Asian specimens as a subspecies only, awaiting more material and application ofmore biologically reliable methods, other than morphological ones, to evaluate the differences.
Norrbomia indica
L. Papp, 1988
–
40 males
,
17 females
(HNHM):
Nepal
,
Royal Chitwan National Park
,
Bandarjhola Island
– Jungle Island Resort,
84°10’E
,
27°35’N
,
150 m
,
1995.10.30
. – swept
on
Elephas maximus
dung, leg.
L. Peregovits
;
32 males
,
9 females
(
HNHM
):
Taiwan
:
Pingtung Hsien
,
Kenting National Park
, grassy hillside, on cow pats,
October 5, 2000
, leg.
L. Papp
, No. 17. A species new to
Nepal
and
Taiwan
.
In the World Catalogue ofSphaeroceridae (R
OHÁČEK
et al.
2001),
NORRBOM
elevated the varietal name
sordidus
var.
tropicus
DUDA
, 1923
to species and formally designated a
lectotype
with label data identical to the
holotype
for my species
N. indica
L.
PAPP
, 1988
. There are a number ofreasons why the name
tropicus
cannot be used and why the
lectotype
designation cannot be accepted.
DUDA
, in 1923 identified a series of specimens from
Abyssinia
and East
India
as
sordidus
(
ZETTERSTEDT
, 1847). When I examined the series that is housed in the Hungarian Natural History Museum, it was apparent to me that there were two species, neither ofwhich was
sordidus
ZETTERSTEDT
. I described the specimens from
India
as
N. indica
, and the specimens from
Abyssinia
as
N. demeteri
L.
PAPP
, 1988
. I was unable to use the name
tropicus
for either of the species because I regarded it as unavailable according to the Code (Third edition, Article 12(a).). There is a definite ruling about infrasubspecific names in the International Code Z. N., Fourth Edition, Article 45.6.4.1., which says that if an infrasubspecific name had not been “…either adopted as the valid name ofa species or subspecies or was treated as a senior homonym” before 1985, that remains infrasubspecific. In fact, neither
DUDA
himself, in 1938, nor
HACKMAN
in 1977 accepted the name
tropicus
, this notwithstanding the fact that
DUDA
had recognised the said series ofspecimens as different from typical
sordidus
. His description ofthe
variety
tropicus
is not sufficient to enable any subsequent worker to differentiate it from either
sordidus
or
marginatis
ADAMS
, 1905
. Also, he did not label any specimens as
var.
tropicus
. I consider
NORRBOM
to have been incorrect in raising the status of
tropicus
to species. Furthermore,
NORRBOM
did not examine any ofthis material, nor did he label any specimen as
lectotype
. This is not the accepted practice in
lectotype
designation (ICZN, Fourth Edition, Article 74 particularly 74.1, 74.7) even ifhe were correct in his interpretation of the status of the species in question.
For these reasons, I propose that the name
N. indica
L.
PAPP
, 1988
remains the valid species name and should not have been sunk as a synonym of
tropicus
DUDA
. I also propose that the name
tropicus
is in fact an unavailable name.
*
Norrbomia marginatis
(
ADAMS
, 1905)
–
1 male
(
HNHM
):
Nepal
,
Royal Chitwan National Park
,
Bandarjhola Island
– Jungle Island Resort,
84°10’E
,
27°35’N
,
150 m
,
1995.10.30
. – swept
on
Elephas maximus
dung, leg.
L. Peregovits
;
28 males
,
4 females
:
Taiwan
:
Pingtung Hsien
,
Kenting National Park
, grassy hillside, on cow pats,
October 5, 2000
, leg.
L. Papp
, No. 17. A species new to the fauna of
Taiwan
(cf.
PAPP
1988
b
)
.