The genus Oedichirus in New Caledonia (Staphylinidae: Paederinae: Pinophilini)
Author
Rougemont, Guillaume de
text
Linzer biologische Beiträge
2018
2018-07-27
50
1
537
586
journal article
21039
10.5281/zenodo.4004257
61bdc8ed-f0e1-4c9e-a7de-71ea43cecdd9
0253-116X
4004257
Oedichirus manautei
nov.sp.
(Figs 1)
Material studied:
♂
Holotype
:
NEW CALEDONIA
,
R. Bleue
,
Pourina
track,
18 Nov 2001
,
GB Monteith
♀ HOLOTYPE
Oedichirus
opaciceps Des. 2016,
G. de Rougemont
[
MNHN
]
;
1
paratype
: [abdominal segments VIII-IX missing]:
NEW CALEDONIA
,
Mt. Koghis
,
Elev.
500,
Montane forest
,
22-24 May 1987
,
N.I. Platnick
,
R.J. Raven
[
AMNH
]
;
1♂
paratype
:
NEW CALEDONIA
,
Monts Koghis
,
Auberge
near
Nouméa
,
500 m
,
26.VII – 13.VIII. 1978
,
S.&J. Peck
, rainforest ♀ berl. Rainforest leaf litter ♀ PARATYPE
Oedichirus
opaciceps Des. 2017
G. de Rougemont
[
FMC
]
.
Description: length: ca.
12 mm
; length of fore-body: 4.2; length of head: 1.5; breadth of head: 1.42; length of antenna: 3; length of pronotum: 1.65; breadth of pronotum: 1.42; length of elytron: 1.35; breadth of elytra: 1.47. Body black, palpi, antennae and legs testaceous, knees broadly infuscate. Head sericeous, sub-opaque, entirely covered with very dense reticulate microsculpture; pronotum likewise entirely micropunctate, but reticulation a little less dense; elytra devoid of microsculpture; abdominal tergites entirely covered with dense micro-striation. Pubescence very sparse, erect, short on fore-body, longer on abdomen. Habitus: Fig. 1h.
Head transverse; eyes prominent, a little shorter than temples; temples strongly convergent, retracted to neck in almost straight lines; post ocular border situated almost on lateral margin, the groove narrow, inconspicuous; puncturation very sparse, vertex almost impunctate, punctures, especially in post-ocular area small and shallow. Pronotum quite strongly elongate, behnd anterior angles as broad as head, the sides retracted in slight curves to base; lateral margin entirely bordered; disc coarsely, irregularly punctate, the punctures much larger than those of head, elongate and clustered at centre of disc, sparser and more irregular on sides and leaving a small mid-longitudinal impunctate area in basal
1♀
3
rd
. Elytra small, transverse, widest at middle, humeral angles completely obsolete, the sides evenly rounded, joint posterior margin arcuately concave; puncturation coarse and dense, comparable to that of pronotum. Keels and grooves of anterior margins of abdominal tergites obsolete; puncturation sparse, tergites III-VI each with an irregular transverse row of small punctures, four large punctures disposed in a square enclosing an impunctate area of middle of the tergite, and other randomly disposed punctures on sides.
Male: abdominal sternite VIII with a slightly asymmetrical emargination, most of the surface anterior to this flattened and densely microsculptate and impunctate, the right margin of this area elevated in the form of a small keel; aedoeagus: Figs. 1arl, av.
This species differs most notably from
O. peckorum
nov.sp.
which has a similarly punctate abdomen and densely microsculptate head by the shape of the temples.
Dedication: to Joseph Manauté, manager of the Rivière Bleue Reserve, and dedicated conservationist.