Revision of the genus Thyreocephalus and description of Afrus gen. nov. of Africa south of the Sahara (Coleoptera: Staphylinidae: Staphylininae)
Author
Janák, Jiří
Author
Bordoni, Arnaldo
text
Zootaxa
2015
4038
1
1
94
journal article
10.11646/zootaxa.4038.1.1
066e84f1-206b-40cb-a615-2126696b813d
1175-5326
289876
1B62B78C-AA59-4417-A4FC-1CC9CED745E0
Thyreocephalus giganteus
Janák, 2010
(
Figs. 104, 105
,
108–113
)
Thyreocephalus giganteus
Janák, 2010
: 132
.
FIGURE 108
. Distribution of species in
Thyreocephalus giganteus
group (▲ =
T. giganteus
Janák
),
T. magnus
group, (● =
T. magnus
Janák
, ○ =
T. michaeli
Janák
) and
T. ferox
group (■ =
T. ferox
(Harold))
.
Type
locality.
Democratic Republic of Congo
, National Park Garamba.
Type
material examined.
Holotype
♂:
DEMOCRATIC REPUBLIC OF CONGO
: “
Congo Belge
, P. N. G. [= National Park Garamba], Miss. H.
De
Saeger, II/gd/17,
10-IV-1951
, Rec. H.
De
Saeger, 1557”.
Paratypes
:
2 ♂
, 2 ♀: same data as
holotype
(
MRAC
,
JJRC
).
Additional material examined:
CAMEROON
: 1 ♀: Foumbot,
13.v.1968
(with the label “
Paratype
,
Eulissus giganteus
n. sp.
, L. Levasseur det. 1970, in litt.”) (
MNHNP
); 1 ♀: Foumbot, Safa,
25.iv.1970
(
MNHNP
); 1 ♀:
Cameroon
(?), Mt Ngaha (?),
3.vi.1971
(with the label “
Holotype
,
Thyreocephalus inexpectatus
n. sp.
, L. Levasseur det. 1968, in litt.”) (
MNHNP
).
CENTRAL AFRICAN REPUBLIC
: 1 ♀: Nahovvi (?),
20 km
Bouar,
10.xi.1968
, P. Teocchi (
ABFI
);
1 ♂
: La Maboke,
2.v.1964
, R. Pujol (with the label “édeage et dern. segm. abd.
FIGURES 109–113
.
Thyreocephalus giganteus
Janák
; 109, head and pronotum; 110, labrum; 111, male tergite 10; 112, male sternite 9; 113, aedeagus.
accidants!”, in coll. Levasseur) (
MNHNP
);
1 ♂
: Lobaye pr. Ngoto forest,
150 km
NWW Mbaiki near Grima,
12– 15.vi.
2009
, 600m, A. Kudrna Jr. lgt.” (
JJRC
).
Redescription.
Body length
32–35 mm
; length from anterior margin of head to posterior margin of elytra:
20– 23 mm
. Body elongate, moderately slender. Dark brown, elytra and abdomen red or reddish-brown, antennae brown with apical half of segment 11 reddish-brown (
Fig. 104
). Head and pronotum and related punctation as in
Fig. 105
,
109
; labrum as in
Fig. 110
. Elytra trapezoidal, about as long as wide, with prominent humeral angles; surface with fine and sparse punctation. Abdomen with extremely fine punctures.
Male
. Tergite 10 and sternite 9 of male genital segment as in
Figs. 111, 112
. Aedeagus (
Fig. 113
)
3.1–3.7 mm
long, long and narrow, with long and slender parameres and very narrow inner sac, covered with very fine scales.
Differential diagnosis.
Thyreocephalus giganteus
differs from the other
Thyreocephalus
from Africa south of the Sahara in the extremely large body, the absence of postocular punctures and in the shape of the aedeagus.
Distribution.
The species is distributed in
Cameroon
,
Central African Republic
and
Democratic Republic of Congo
(
Fig. 108
).