A revision of the African hygropetric genus Coelometopon Janssens, and description of Oomtelecopon new genus (Coleoptera: Hydraenidae)
Author
Perkins, Philip D.
text
Zootaxa
2005
2005-04-20
949
1
1
103
https://biotaxa.org/Zootaxa/article/view/zootaxa.949.1.1
journal article
10.11646/zootaxa.949.1.1
11755334
5046275
1BA0F338-A1A1-4DAB-80A7-140F7CF1CFDE
Coelometopon granulatum
new species
(Figures 40, 41, 56–65, 84)
Type Material.
Holotype
(male):
South Africa
:
Natal Prov.
,
Mpumalanga
,
Sabie
13 km
E,
1150m
, wet rockface,
25° 4' S
,
30° 53' E
,
2 February 1997
, EndrödyYounga; deposited in the
TMSA
.
Paratypes
(221):
South Africa
:
Natal Prov
.
,
Same
data as holotype (98
TMSA
);
Mpumalanga
,
Graskop
14 km
SE, wet rockface, elev.
1100 m
,
25° 4' S
,
30° 52' E
,
5 February 1997
,
EndrödyYounga
(3278) — (97
TMSA
);
Mpumalanga
,
Graskop
28 km
N, wet rockface,
24° 43' S
,
30° 51' E
,
4 February 1997
,
EndrödyYounga
(3276) — (1
TMSA
);
Umgeni River Valley
, pipeline road near
Camperdown
,
29° 45' S
,
30° 34' E
,
16 November 1958
,
Stuckenberg
— (3
BMNH
);
Transvaal Prov.
, N
. Transvaal,
Soutpansberg
,
Entabeni
, shore washing,
22° 58' S
,
30° 15' E
,
15 March 1973
,
EndrödyYounga
(#56) — (22
TMSA
).
Representative
specimens deposited in
AMG
,
CMNH
,
FMNH
,
LUM
,
MNMS
,
MCZ
,
MRAC
,
NMW
,
QMBA
, and
USNM
.
Diagnosis.
Similar in dorsal sculpture and body form to
C. zulu
and
C. mussardi
. In females of
C. granulatum
the last sternite is not emarginate, and the last tergite is arcuate, with closely spaced short spines; whereas in females of
C. zulu
the last sternite is apicomedially emarginate, and the last tergite is bilobate, with strong short spines divided into two groups; females of
C. mussardi
are unknown. Reliable identifications of these three species will require study of the male genitalia (Figs. 37, 40, 43).
Description.
Size (length/width, mm x 100;)
holotype
: body 244/107, head 65/56, pronotum 56/89, elytra 160/107. Dorsum piceus, legs dark brown. Maxillary palpus slightly shorter than width of anterior margin of clypeus, last three palpomeres subequal in length and maximum width. Mentum weakly produced apicomedially; depressed on each side of midline near base. Granules nearly uniform on base of clypeus, frons and pronotum, much finer and sparser on shining apical 1/2 of clypeus, largest granules on pronotal disc.
Pronotum with sides angulate at midlength, strongly emarginate in front of and weakly emarginate behind angulation; lateral depressions markedly convex.
Elytra with exceedingly fine and rather sparse micropore ground sculpture. Granulate throughout, intervals as follow: evennumbered intervals each with unilinear row of granules; 2nd, 4th and 6th each with three or four subcostate to costate sections; 8th widened, forming pseudoepipleuron.
Metasternum with oval depression slightly rimmed posteriorly. Female last sternite not emarginate, subapical depression not rimmed posteriorly; last tergite arcuate, with closely spaced short spines.
Aedeagus length
0.42 mm
; mainpiece very slightly bulging in middle in lateral aspect, nearly straight in dorsal aspect, ridged process in dorsal aspect appearing as two very short, well separated lobes; gonopore process short and rather wide, angled to right side in dorsal aspect; membranous process wide and short, about twice as wide as gonopore process (Fig. 40).
Etymology.
Named in reference to the granulate dorsum.
Distribution.
Currently known from Natal and Transvaal Provinces (Fig. 84).