Revision and phylogenetic analysis of the African genus Ischnopoderona (Scheerpeltz, 1974) new status (Coleoptera, Staphylinidae: Aleocharinae)
Author
Paśnik, Grzegorz
text
Zootaxa
2007
1412
1
54
journal article
10.5281/zenodo.175634
2e26e5f6-6e3f-4779-af1c-043196dc7c49
11755326
175634
Ischnopoderona externa
(
Fauvel, 1907
)
,
comb. n.
(
Figs. 30–32
, Map 2)
Tachyusa externa
Fauvel, 1907
: 59
.
Tachyusa
(
Caliusa) externa
:
Bernhauer & Scheerpeltz, 1926
: 586
.
Amanota externa
:
Pace, 1995
: 780
.
Type
material
.
Lectotype
(here designated): Ψ: [
Kenya
], Nakuro, Rift Valley,
externa
Fvl.
(
IRSNB
).
Paralectotypes
: 3ΨΨ: same data as
lectotype
(
IRSNB
).
Additional material
.
Democratic Republic of Congo
:
Faradje,
19.II.1930
, A. Collart, 1ex (
IRSNB
); Tshiobo N’Goy, Kitokula river, Mayumbe,
29.VI.1926
, A. Collart, 1ex (
IRSNB
).
Gabon
:
Belinga,
20.I.1963
, 12 exx (
MNHN
);
21.I.1963
, 10 exx (
MNHN
);
22.I.1963
, 1 ex (
MNHN
);
23.I.1963
, 3 exx (
MNHN
);
26.I.1963
, 6 exx (
MNHN
);
1.II.1963
, 4 exx (
MNHN
);
4.II.1963
, 1 ex (
MNHN
);
8.II.1963
, 1 ex (
MNHN
);
10.II.1963
, 4 exx (
MNHN
);
16.II.1963
, 1 ex (
MNHN
);
22.II.1963
, 5 exx (
MNHN
);
26.II.1963
, 20 exx (
MNHN
);
4.III.1963
, 1 ex (
MNHN
);
16.III.1963
, 1 ex (
MNHN
);
18.III.1963
, 1 ex (
MNHN
);
4.IV.1963
, 1 ex (
MNHN
);
10.IV.1963
, 1 ex (
MNHN
);
27.IV.1963
, 1 ex (
MNHN
);
5.V.1963
, 3 exx (
MNHN
);
23.V.1963
, 1 ex (
MNHN
); Makokou,
16.I.1963
, 1 ex (
MNHN
).
Kenya
:
Nakuro, Rift Valley,
XII.1903
, Ch. Alluaud, 10 exx (
MNHN
).
Redescription.
Body. Length
2.7–2.9 mm
, convex, parallelsided, glossy; body colour brown; tergites V– VII black, antennae brown with antennomeres 1–2 red, legs yellow to yellowishred.
FIGURES 30–32.
Ischnopoderona externa
(Fauvel)
: 30—aedeagus in lateral view, 31— aedeagus in ventral view, 32— spermatheca.
Head circular in outline, convex; eyes relatively large, moderately protruding from lateral contours of head, length of each seen from above subequal to that of postocular region; surface of head without microsculpture; puncturation minute, pinpricklike and moderately sparse. Antennae long, extending to 1/2 of elytra, slightly increasing in width apically, antennomeres 2 and 3 subequal in length, antennomeres 4–8 longer than wide, antennomeres 9–10 as long as wide, antennomere 11 nearly coniform.
Pronotum quadrate, convex, lateral sides sinuately narrowed to obtuse hind angles; before base with small and shallow transverse impression; surface without microsculpture; puncturation in basal 2/3 fine and dense, in anterior 1/3 minute, pinpricklike and sparse; pubescence at midline directed posteriorly in apical 1/4 and anteriorly in basal 3/4.
Elytra subquadrate, at suture as long as pronotal length at midline; surface without microsculpture; puncturation minute, pinpricklike and moderately sparse.
Abdomen widened posteriorly, bases of tergites III–V each with deep transverse impression, first two impressions coarsely punctate, third impression smooth, impunctate; tergal puncturation fine and moderately dense; surface without microsculpture.
Male. Aedeagus as in
Figs. 30–31
.
Female. Spermatheca as in
Fig. 32
.
Remarks
.
Ischnopoderona externa
is very similar to
I. interna
, from which it can be distinguished by the antennomere 11 brown, coloured like preceding antennomeres (antennomere 11 yellow in
I. interna
), the pronotum as long as wide (longer than wide in
I. interna
) and by the shape of the spermatheca.
Distribution
.
Gabon
,
Kenya
(Map 2).