Small, uniform, and rarely collected-an integrated taxonomic revision of Afromicracis bark beetles (Coleoptera, Scolytinae)
Author
Jordal, Bjarte
text
Zootaxa
2021
2021-06-03
4981
1
70
88
journal article
5929
10.11646/zootaxa.4981.1.3
2a6a68b5-abec-4b2f-87b8-91cc5e0f1e78
1175-5326
4897574
72B8C187-2685-475E-A20F-60830FF606A0
Afromicracis robusta
(Schedl, 1957)
(
Figs 2, 5, 8
,
54
)
Dendrochilus robustus
Schedl, 1957
(original spelling)
=
Dendrochilus arundinarius
Schedl, 1957
(synonym by
Jordal 2021b
)
=
Dendrochilus filum
Schedl, 1977
(synonym by
Jordal 2021b
)
=
Hypothenemus bambusae
Browne, 1980
(synonym by
Jordal 2021b
)
Type material.
Holotype
, sex?
Congo
,
Hembe-Bitale
,
14.VIII.1952
, Dr Schedl (
RMCA
);
allotype
and
paratypes
(2) same data as HT (
NHMW
)
.
Holotype
of
D. arundinarius
:
Congo
,
Mt. Kahuzi
,
22.VIII.1952
, Dr Schedl (
RMCA
);
paratypes
(6), same data as holotype (
NHMW
)
.
Holotype
of
D. filum
:
Congo
,
Kivu
,
Uvira
,
20.VIII.1952
,
KE Schedl
(
NHMW
)
.
Holotype
and
one paratype
of
H. bambusae
:
Congo
,
Kilindera
(Ruwenzori),
2750 m
(
NHMUK
)
.
Diagnosis.
Length 1.6–2.0 mm, 2.5–2.7 × as long as wide. Frons smooth, setae scant. Pronotum and elytra with hair-like setae, interstrial setae erect, in regular rows; strial setae barely visible. Protibiae narrow, with one lateral and two apical denticles.
Distribution.
Congo
(eastern highlands),
Tanzania
.
New records.
Congo
,
Kalonge
,
Ruwenzori Massif
,
2080 m
[GIS: -2.33, 28.74],
01.06.1953
,
J.M. Vrydagh
(1,
NHMUK
)
;
Congo
,
Ruwenzori Massif
,
Kyondo
[GIS: 0.01, 29.41], ‘2141’,
24.07.1963
,
M.J. Celis
(1,
NHMUK
)
.
Tanzania
,
Morogoro province
,
Udzungwa Mountains
[GIS:
-7.868
,
36.844
],
12. Nov. 2009
,
B. Jordal
leg. (1,
ZMUB
)
.
Remarks.
Male and female are presumably identical in all external aspects. One dissected female had only few setae on the scapus and the frons was nearly glabrous. All records of this species are from the eastern highlands of
Congo
, in forests between 1000 and
2750 m
altitude, and in the Udzungwa Mountains of
Tanzania
at
1000 m
. The species has been dissected from bamboo on two occasions and may therefore use these unusual host plants regularly, although other host plants may be preferred. The new record from
Tanzania
is based on a single specimen dissected from bark of a fallen tree branch. This is the first record east of the rift valley.