Taxonomic revision of the Australian Notoxinae (Coleoptera: Anthicidae)
Author
Kejval, Zbyněk
Muzeum Chodska, Chodské náměstí 96, Domažlice CZ- 344 01, Czech Republic
anthicid@seznam.cz
text
Acta Entomologica Musei Nationalis Pragae
2013
suppl.
2013-11-15
53
1
98
journal article
9540
10.5281/zenodo.4272709
e0acc5ae-bfff-4f31-bf35-3580e085955a
ISSN0374-1036
4272709
37E0BCFC-F84A-4B2E-B554-0DC4AE42AD15
Mecynotarsus pilicornis
sp. nov.
(
Figs 98–101
,
164
)
Type
locality.
Australia
,
Queensland
,
17.7 km
N of Mount Molloy, Station Creek,
426.7 m
.
Type material.
HOLOTYPE
:
♂
, ‘
17.7km
N. of Mt. Molloy
,
Station Ck
426.7m
, Q.
21.xii.70
,
J.G.Brooks
[p] // ANIC Specimen [p; green label]’ (
ANIC
).
PARATYPES
:
1 ♀
, ‘
Qld Laura Stn. Laura N
QLD
4 April 1983
A.
WalfordHuggins
at M.V. light [p] // AUST. NAT. INS. COLL. [p; green label]’ (
ANIC
)
;
1 ♀
, ‘
13.41S
143.08E
Peach Ck
QLD
15 Sep 1992
at light
P.Zborowski
&
L.Miller
[p] // AUST. NAT. INS. COLL. [p; green label]’ (
ANIC
)
;
1 ♂
1 ♀
, ‘
Leo Creek
Road, ca.
500 m
.
,
McIlwraith Range
,
30 km
N.E. of Coen, N. Qld
.
June 29–July 4, 1976
G. B. & S. R. Monteith
[p]’ (
QMBA
)
;
1 ♂
1 ♀
, ‘
W. Normanby R., N. Qld.
,
40 ml.W. of Cooktown
2.i.1964
.
G. Monteith’
(
QMBA
)
.
Additional specimens.
AUSTRALIA
:
NEW
SOUTH WALES:
1 ♂
3 ♀♀
,
Namoi River
,
Narrabri
,
30°19′S
149°47′E
,
10.iii.1969
, at light,
J. A. L. Watson
leg. (
ANIC
)
;
1 ♀
,
Moree
,
29.xii.1971
,
B. Cantrell
leg. (
QMBA
)
.
QUEENSLAND
:
1 ♂,
Carnarvon National Park
,
Sekt. Salvator Rosa
,
i.1997
,
Wachtel
leg. (
ZKDC
)
;
2 ♀♀
,
Gympie
,
Brooyar State Forest
,
12.iii.1997
,
Wachtel
leg. (
ZSMC
)
;
2 ♂♂, Gayndah [no date and collector;
syntypes
of
M. kingii
] (
ANIC
).
Description
(
holotype
, male). Body length
2.5 mm
. Body largely reddish brown, elytra with vague darker markings dorsally along suture. Legs and antennae reddish.
Antero-lateral margins of frons slightly raised near insertion of antennae. Gular rugules of different sizes, anteriorly larger, nearly contiguous and ordered as in
Fig. 138
. Clypeal granules minute. Setation of head rather uniformly short, finer and appressed posteriorly on vertex, somewhat coarser anteriorly on frons, subdecumbent and coarser around eyes and ventro-laterally. Antennae moderately long; antennomeres III–V about 1.5 times, X 1.1 times as long as wide; setation mostly fine, distinctly coarser to scaly on 3–4 basal antennomeres.
Pronotum globose, 1.4 times as long as wide, its lateral margins rather strongly and somewhat unevenly convex in dorsal view; posterior collar narrow but distinct. Pronotal horn robust and wide, subtriangular, its posterior angles distinct in dorsal view (
Fig. 164
); horn margins armed with 5 and 6 lobules (posteriorly smaller), apical lobule simple, broadly rounded; horn crest distinct, wide, with coarse rugules on margins; submarginal rugules rather distinct; about 7 larger, contiguous median rugules and several minute granules posteriorly. Setation whitish to greyish, largely scaly and appressed, distinctly finer on pronotal horn dorsally (even here rather quite distinct, dense); scales on pronotal disc of two sizes, larger scales widely rounded to truncate apically; antebasal paired setae present laterally and absent medially, another tactile setae absent.
Elytra 1.6 times as long as wide; omoplates and postbasal impression absent. Setation scaly and appressed, uniform, whitish to pale reddish; scales elongate, rounded to subtruncate apically, opaque, densely spaced but distinct; erect tactile setae absent.
Male characters. Sternum VII moderately sinuous posteriorly, with slightly produced, rounded apex. Tergum VIII and aedeagus as in
Figs 98–100
.
Variation.
Body length (♂
♀
)
2.2–2.6 mm
.
Pronotal
horn with 4–6 lobules on each side.
Elytra
in some specimens (mostly from
New South Wales
) with more or less distinct darker markings from reddish to brownish scales; scales of pronotal disc medially reddish.
Differential diagnosis.
Mecynotarsus pilicornis
sp. nov.
may somewhat resemble
M. kingii
by body shape, colouration, and the dense, uniform, opaque scales of the pronotal disc and elytra. It differs from this species mainly by the morphology and dense setation of the pronotal horn (cf.
Fig. 164
versus
154), comparatively short frontal portion of the head with simple lateral margins of the frons, and by the shape of the parameres in males (cf.
Figs 99, 100
versus
68).
Etymology.
The species name is a Latin adjective composed from the words
pilosus
(= hairy) and
cornu
(= horn); named in reference to the densely setose dorsal surface of pronotal horn.
Distribution.
Australia
:
Queensland
,
New South Wales
.
Remarks.
The additional specimens from
New South Wales
agree well in external characters, but differ in the shape of the parameres, that mainly lack the fine subapical lobe on the median margin (
Fig. 101
). They may possibly represent a different taxon (geographical subspecies), however, more material is needed to exclude possible intraspecific variability.