Revision of the genus Stenichnaphes Franz in New Zealand (Coleoptera: Staphylinidae: Scydmaeninae)
Author
Jałoszyński, Paweł
text
Zootaxa
2015
3915
2
250
262
journal article
10.11646/zootaxa.3915.2.4
168815c7-c27f-407a-b1e3-abf10e6ed002
1175-5326
239835
C73C82EC-861F-40C9-B1C7-06F3279FF879
Genus
Scydmaenilla
King
Scydmaenilla
King, 1864
: 93
.
Type
species:
Scydmaenilla pusilla
King, 1864
(monotypy). Reduced to subgenus of
Stenichnus
by
Franz (1975)
, reinstated by
Jałoszyński (2013b)
.
Scydmaenilla
comprises
Cyrtoscydmini
with the following combination of characters: eyes located posteriorly; occipital constriction nearly as broad as vertex; frontoclypeal groove absent; mandible with subapical tooth; submentum with lateral sutures; hypostomal ridges present and complete; posterior tentorial pits hidden in groove between submentum and gular plate; antennae with variously distinct 3-segmented club; pronotum with one pair of lateral antebasal pits connected by transverse groove, with variously distinct lateral marginal carinae visible in posterior half; prosternum with narrow basisternal part; procoxal cavities separated in middle by fine carina; hypomeral ridges absent; mesoventrite with asetose impressions (= procoxal rests) separated in middle; mesoventral intercoxal process carinate, moderately projecting ventrally, with distinct posterior tip separated from metaventrite; metaventrite with anterior metaventral process, with short and broad metaventral intercoxal process bearing median notch; and aedeagus with free parameres.
This set of characters, so far known only in Australian species, was found in
Stenichnaphes newtoni
from
New Zealand
. The exception is the antenna rather gradually thickened and not with a distinct club, but already in
Scydmaenilla
(
Scydmaenillunia
)
the club is indistinctly delimited and this character can be excluded from the diagnosis of
Scydmaenilla
.
Stenichnaphes newtoni
is here transferred to
Scydmaenilla
, but several differences in relation to previously known subgenera justify its separate placement in a new subgenus.