Hydraenidae of Madagascar (Insecta: Coleoptera)
Author
Perkins, Philip D.
text
Zootaxa
2017
2017-11-03
4342
1
1
264
journal article
31639
10.11646/zootaxa.4342.1.1
15799d2a-1968-4874-8100-452597d4e26b
1175-5326
1041066
2ACD54D2-3487-432D-9323-EEC131FE2E64
Limnebius clandestinus
,
new species
Figs. 153
(habitus), 21 (aedeagus), 296 (map)
Type
Material.
Holotype
(male):
Mahajanga
,
Boeny
:
Mahavavy Kinkony
RS.
S
16.13337
E 0 45.95778
, elev
.
19 m
,
4 xii 2009
, J. Bergsten, N. Jönsson, T. Ranarilalatiana, HJ.
Randriamihaja
(
MAD09-25
) (
NHRS
).
Paratypes
(6):
Same
data as
holotype
(1
NHRS
);
Mahajanga
,
Melaky
: btw
Bekopaka—Antsalova.
S
18.91556
E 0 44.55546
, elev
.
47 m
,
18° 55' S
,
44° 33' E
,
16 xii 2009
, J. Bergsten, N. Jönsson, T.Ranarilalatiana, HJ.
Randriamihaja
(
MAD09-61
) (1
NHRS
);
Toliara
, Andranomena, at black light, dry forest near open marsh,
19° 53' S
,
45° 4' E
,
30 iii 1990
, W. E. Steiner, C. Kremen, V. Razafimahatratra (3
USNM
);
Menabe
:
Kirindy
RS.
S
20.07641
E 0 44.67478
, elev
.
65 m
, 20° 5' S, 44° 40' E,
11 xii 2009
, J. Bergsten, N. Jönsson, T. Ranarilalatiana, HJ. Randriamihaja (MAD09-42) (1 NHRS).
Differential Diagnosis.
Habitus as in
Fig. 153
; a moderately sized (ca.
0.92 mm
), strongly shining, teardropshaped species. Very similar in habitus to
L. steineri
, though having the dorsal punctation slightly less apparent, and without apparent setae. The aedeagi of the two species are similar in shape (
Figs. 20, 21
), but in
L. clandestinus
the aedeagus is shorter, less sharply pointed apically, and in lateral view distinctly more arcuate and having the pair of long setae located more basally.
Description
. Size:
holotype
(length/width, mm): body (length to elytral apices) 0.92/0.51; head width 0.36; pronotum 0.23/0.51; elytra 0.55/0.51; approximate height, lateral view 0.29. Dorsum brown to piceous, head and pronotum sometimes slightly darker than elytra. Body form distinctively drop-shaped. Pronotum with disc strongly shining, non-microreticulate, very sparsely finely punctulate, punctures without apparent setae; area posterior to eye (side view) with slightly larger punctures. Elytra non-microreticulate or very weakly effacedly so, with minute punctures similar to those on pronotum.
Males with first three pro- and mesotarsal segments slightly enlarged, with adhesive setae. Labroclypeal suture arcuate in frontal view in both sexes. Labrum simple, similar in sexes. Lateral angle of elytral apices more widely rounded and apices more truncate in males than in females, sutural angle more acute in females.
Etymology.
Named in reference to the similarity to
H. steineri
.