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 semibrunneus
nov.sp.
(Figs 19)
Material studied:
♂
Holotype
:
New Caledonia
,
Col des Roussettes
,
12.xi.1998
,
I. Löbl
, litter in ravine
♀
HOLOTYPE
Oedichirus semibrunneus Des. 2016 G. de Rougemont
[
MHNG
]
;
1♀
paratype
: [Ibid.]
♀
PARATYPE
Oedichirus semibrunneus Des. 2016 G. de Rougemont
[
CRO
]
.
Description: length: ca.
7.7 mm
; length of fore-body: 3.3; length of head: 0.95; breadth of head: 1.12; length of pronotum: 1.3; breadth of pronotum: 1.15; length of elytron: 1; breadth of elytra: 1.25. Head and pronotum black, elytra reddish-brown, the suture narrowly infuscate; abdomen bicolorous, the centres of tergites increasingly broadly black, the sides brown; palpi, antennae and legs entirely testaceous. Head densely microreticulate, pronotum and elytra devoid of microsculpture, abdomen with dense transverse micro-striation. Dorsal surfaces glabrous apart from a few short hairs on frons. Habitus: Fig. 19h.
Head moderately transverse; eyes large and protruberant, about as long as temples, the latter regularly rounded to neck; post-ocular border narrow, shallow, a little displaced to dorsal surface from lateral margin; puncturation coarse and dense, consisting of more than 40 umbilicate punctures, leaving frons and postero-lateral areas impunctate. Pronotum moderately elongate, the sides convergent in slight curves to narrow base; lateral margins entirely bordered; puncturation dense, interstices nearly everywhere narrower than diameter of punctures, punctures at centre slightly elongate. Elytra short, humeral angles completely obsolete, the sides forming a distinct angle at mid-length; puncturation dense, the punctures larger than those of pronotum near suture, smaller laterad. Keels and grooves of anterior margins of abdominal tergites well-marked; puncturation dense and homogeneous.
Male: aedoeagus: Figs. 19arl, av.
Female: sternite IX (damaged): Fig. 19vp.
O. semibrunneus
nov.sp.
is very similar to
O. bilaminatus
nov.sp.
, from which it is distinguished by the aedoeagus and conformation of the female ninth sternite.