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 burgeoni
(
Bernhauer, 1929
)
comb. nov.
(
Figs. 206
,
212–217
)
Eulissus burgeoni
Bernhauer, 1929
: 122
;
Scheerpeltz, 1933
: 1317
;
Herman, 2001
: 3626
.
Type
locality.
Democratic Republic of Congo
, Haut-Uele, Kubango.
Type
material examined.
Lectotype
(by present designation) ♀:
DEMOCRATIC REPUBLIC OF CONGO
: “Musée du
Congo
, Haut-Uele: Yebo,
I-1926
, L. Burgeon”, “R. DET., 1964 F”, “
Xantholinus
,
Burgeoni
Brh.
, n. sp.”, “
Thyreocephalus burgeoni
(Bh.)
, J. Janák det. 2006” (
MRAC
). This specimen is chosen as
lectotype
. The additional label “
Lectotypus
Eulissus burgeoni
Bh., Janák & Bordoni
des. 2012” was added to the specimen.
Syntype
(?): ♂:
DEMOCRATIC REPUBLIC OF CONGO
: “Haut-Uelé: Moto 1920, L. Burgeon”, “
Eulissus uelensis
Brh. Typ
” (
MRAC
).
Additional material examined.
GHANA
:
1 ♂
: Brong-Ahafo reg., Kitampo cataract, Fullner falls,
200 m
,
8.02N
,
1.42W
,
15.viii.1965
, S. Endrödy-Younga (
HNHM
).
DEMOCRATIC REPUBLIC OF CONGO
: 4 spec.: Kibali-Ituri, t. Epulu, Mambasa-Mungbere,
900 m
,
ii.1954
, N. Leleup (
MRAC
,
JJRC
).
KENYA
:
2 ♂
,1 ♀: Western prov., Kakamega Forest Res.,
5.–8.xii.2000
, M. Bednařík (
JJRC
).
FIGURES 212–217
.
Thyreocephalus burgeoni
(Bernhauer)
; 212, head and pronotum; 213, labrum; 214, male tergite 10; 215, male sternite 9, 216, aedeagus, 217, female genital segment (fp—fused pleurites, s—sternite, ss—supplementary sclerites).
Redescription.
Body length
10–12 mm
; length from anterior margin of head to posterior margin of elytra:
5– 6 mm
. Head and pronotum black, elytra yellowish with brown scutellum, abdomen dark reddish brown, genital segment, antennae and legs light reddish brown. Head very shiny, with sparse micro-punctation. Pronotum with dense micro-punctation. Head and pronotum and related punctation as in
Fig. 212
; labrum as in
Fig. 213
. Elytra as long as pronotum, slightly dilated posteriad and there as wide as pronotum, with rounded humeral angles. Surface with fine punctation, arranged in three series, one near suture, one median and one lateral; some punctures with long and light setae. Abdomen shiny, with fine, transverse micro-striation and fine but evident, sparse punctation, arranged in some series.
Male
. Tergite 10 and sternite 9 of male genital segment as in
Figs. 214, 215
. Aedeagus (
Fig. 216
) small,
0.9 mm
long; median lobe spearhead shaped; inner sac covered with fine scales.
Female. Genital segment as in
Fig. 217
.
Differential diagnosis.
Thyreocephalus burgeoni
differs from the similar
T. mokaensis
in the less densely punctured disc of head and longer median lobe.
Distribution.
The species is distributed in
Democratic Republic of Congo
,
Ghana
and
Kenya
(
Fig. 206
).
Remarks.
As
the superior line of pronotal hypomeron is turning downwards well before middle, joining or almost joining inferior line next to front margin of procoxae and continuing onto anterior margin of pronotum, the species was transferred from
Eulissus
to
Thyreocephalus
. In the description the
type
locality is cited as “Haut-Uele: Kubango, L. Burgeon;
uelensis
Bh.
in litt.)”, which did not correspond precisely to either of two specimens (both examined) designated by Bernhauer as
types
. An exceptional third postocular puncture was observed on one side of the head of one specimen.