Revision of Australian species of the dung beetle genus Lepanus (Coleoptera: Scarabaeidae: Scarabaeinae): description of 10 new species from the L. australis, L. monteithi, and L. villosus species groups
Author
Gunter, Nicole L.
Author
Weir, Thomas A.
text
Zootaxa
2019
2019-11-08
4695
3
201
252
journal article
24935
10.11646/zootaxa.4695.3.1
256591b2-6d7b-465d-a818-9a158017ca09
1175-5326
3532515
32E17629-F29A-47C8-ACCB-69A32C17B147
Lepanus latheticus
Matthews, 1974
(
Figs 1J
,
2E
,
3E
,
4E
)
Lepanus latheticus
Matthews, 1974: 109
.
Type material examined.
Holotype
:
♂
“Little Crystal Ck., N.Q.
30. V.1969
, Ferrar-Huppatz” / “
Lepanus latheticus Det. 1972
M., E.G. Matthews
HOLOTYPE
” / “
HOLOTYPE
” / “
ANIC
Database No. 25 057917” [
18°59’0”S
,
146°16’0”E
] in
ANIC
(teneral aedeagus)
.
Paratypes
(
2 ♀
):
“Little Crystal Ck., N.Q.
30. V.1969
, Ferrar-Huppatz” / “
Lepanus latheticus Det. 1972
M., E.G. Matthews
PARATYPE
” [
18°59’0”S
,
146°16’0”E
], (25-057918
2 specimens ♀
in
ANIC
)
.
Other material examined.
Fifty specimens from 17 locations were examined. Mount Cook National Park, [
15°29’0”S
,
145°16’0”E
],
10–12.v.1981
, A. Calder & J. Feehan (25-059209
1 specimen
in
ANIC
);
Bloomfield Road
via
Helenvale
,
Australian Biological Resources Study Site
4, [
145°19’0”E
,
15°48’0”S
],
20–27.vii.1974
,
G.B. Monteith
&
D. Cook
(25-015589
1 specimen
in
QM
)
;
Quaid Road
,
N of Mareeba
, top of range, [
16°44’0”S
,
145°29’0”E
],
16.iii–14.iv.1998
,
S.D. De Faveri
&
K.H. Halfpapp
(25-058576
3 specimens
in
QDPC
)
;
Quaid Road
,
N of Mareeba
, top of range, [
16°44’0”S
,
145°29’0”E
],
30.viii.1998
,
S.D. De Faveri
&
K.H. Halfpapp
(25-058578
2 specimens
in
QDPC
)
;
Quaid Road
,
N of Mareeba
, top of range, [
16°44’0”S
,
145°29’0”E
],
5.i–9.ii.1998
,
S.D. De Faveri
&
K.H. Halfpapp
(25-058577
2 specimens
in
QDPC
)
;
Quaid Road
,
N of Mareeba
, top of range, [
16°44’0”S
,
145°29’0”E
],
10.ii–10.iii.1998
,
S.D. De Faveri
&
K.H. Halfpapp
(25-058575
2 specimens
in
QDPC
)
;
Quaid Road
,
Mareeba
, [
16°44’11”S
,
145°28’37”E
],
14.iv–1.vi.1998
,
S.D. De Faveri
&
K.H. Halfpapp
(25-058574
3 specimens
in
QDPC
)
;
Cairns
(general), [
16°53’0”S
,
145°44’0”E
],
4.ii.1975
,
H.F. & A.T. Howden
(CMNEN-00030174 in
CMNC
)
;
Fitzroy Island
,
Site
2,
16°56’8”S
,
145°59’16”E
,
10.ii–20.iv.1999
, (T
79182
in
ANIC
, T79183, T
79184
in
QM
)
;
Fitzroy Island
Site 4,
16°56’8”S
,
145°59’5”E
,
10.ii–20.iv.1999
, (T
79185
in
QM
)
;
19.5 km
ESE of
Mareeba
, [
17°4’0”S
,
145°36’0”E
],
20.xi–24.xii.1986
,
R.I. Storey
(25-
032598
1 specimen
in
DPIM
)
;
19.5 km
ESE of
Mareeba
, [
17°4’0”S
,
145°36’0”E
],
30.x–20.xi.1986
,
R.I. Storey
(25-059208
1 specimen
in
ANIC
)
;
Bramston Beach
via
Innisfail
, [
17°21’0”S
,
146°1’0”E
],
18.ix–11.xi.1987
,
A. Walford-Huggins
(25-059210
1 specimen
in
ANIC
)
;
S1
Mission Beach
, [
17°52’0”S
,
146°4’0”E
],
40 m
,
29.i–4.iii.1996
,
M. Cermak
(25-059212
1 specimen
in
ANIC
)
;
base of
Kirrama Range
via
Kennedy
,
18°13’0”S
,
145°47’0”E
],
8.v.1974
,
R.I. Storey
(25-
032597
3 specimens
in
QDPC
, 25-058480
7 specimens
, 25-058481
3 specimens
in
QM
, 25-059207
1 specimen
, 25-059217
1 specimen
in
ANIC
, CMNEN-00030172-00030173 in
CMNC
)
;
Scraggy Point
,
Hinchinbrook Island
, [
18°17’0”S
,
146°6’0”E
],
15.i.1989
,
S. Shattuck
(25-059213
1 specimen
in
ANIC
)
;
Little Ramsay Bay
,
Hinchinbrook Island
, [
18°19’0”S
,
146°18’0”E
],
11–19.viii.1975
,
E.N. Marks
, (25-058482
1 specimen
in
QM
)
;
Wallaman Falls
,
18°36’10”S
,
145°48’21”E
5– 12.ii.1996
, (T
54587
in
ANIC
, T54588, T
54589
in
QM
)
;
Little Crystal Creek
[
18°59’0”S
,
146°16’0”E
],
30.v.1969
,
P. Ferrar
&
R.J. Huppatz
(25-059211
2 specimens
in
ANIC
)
;
12 km
WSW of
Paluma
, [
19°0’0”S
,
146°3’0”E
],
13.i–14.ii.1989
,
R.I. Storey
&
Brown
(25-059204
2 specimens
in
ANIC
)
;
12 km
WSW of
Paluma
, [
19°0’0”S
,
146°3’0”E
],
16.xii.1988
–
13.i.1989
,
R.I. Storey
&
Dickinson
, (25-059206
1 specimen
in
ANIC
)
;
Ewan Road
,
Paluma
,
19°0’43”S
,
146°7’34”E
,
900 m
,
14–15.iii.2012
,
G.B. Monteith
(25-05320
1 specimen
also as COL
2406 in
ANIC
)
;
9 km
W of
Paluma
, [
19°1’0”S
,
146°4’0”E
],
10.i.1989
,
R.I. Storey
(25-059205
2 specimens
in
ANIC
)
.
Description.
Holotype
is a teneral male, uniformly light brown in colour. One of the
paratypes
is also uniformly light brown while the other is dark brown. Antennal clubs grey.
Total length:
2.2–2.6 mm
.
Holotype
measurements: total length
2.6 mm
, elytral width
1.5 mm
. Note: the head and pronotum of the
holotype
is separated from the rest of the body and carded, thus measurements are an approximation.
Male
. Head. Surface with light punctation, setae absent. Basal carina absent. Dorsal part of the eyes narrow, separated by an interocular space approximately 13–14 times the eye width (68: 5); eye canthus dividing eye. Head 1.6 x wider than long (43:27).
Prothorax: Pronotal surface with very fine punctation anteriorly to fine punctation posteriorly. Anterior angles almost 90°. Basal margin slightly angulate. Hypomeral surface smooth. Hypomeral striae about half the length of the hypomeron and very close to the lateral margin almost appearing double. Pronotum 1.6 x wider than long (68:42).
Elytra: Surface smooth with lightly impressed, impunctate striae, striae 1–3 or 1–4 appearing double, striae 5–7 appearing sngle; intervals very finely punctate with very superficial setae. Stria 6 extending to elytral base and stria 7 converging towards stria 6 at the base. Stria 8 confined to groove posteriorly. Elytra 1.1 x wider than long (82:73).
Legs: Front edge of protibiae deeply angulate.
Abdomen: Pygidium simple, very finely punctate, often appearing impunctate. Abdominal ventrites reticulate right across. Ventrite 6 punctate.
Pterothorax: Medial lobe of metaventrite very finely punctate and broadly margined between the mesocoxae. Lateral lobe of metaventrite punctate, with inner border beside metacoxae anteriorly curving to meet lateral border. Mesoventrite with minute notch anteriorly. Mesoventrite smooth and nitid. Mesepimeron smooth. Metanepisternum reticulate.
Female
. As per
L
.
australis
species group.
Distribution.
Known from a variety of habitats including rainforest, wet sclerophyll forest, and coastal melaleuca swamps of the Australian Wet Tropics from Cooktown to Paluma in the Australian Wet Tropics bioregion (
Fig. 6B
). Specimens have been collected from sea-level to
900 m
elevation.
Comments.
The majority of specimens have been collected in flight intercept traps but some have been collect- ed in baited pitfall traps (mushroom and dung), in berlesed leaf litter and at light.A recent study on bait preference of Australian dung beetles listed
L. latheticus
from kangaroo and domestic fowl dung and vertebrate and invertebrate carrion, and suggests this species is a generalist feeder (
Ebert
et al.
2019
).
Two specimens identified as
Lepanus latheticus
were included in the phylogeny of Gunter
et al
. 2019, one from Paluma, which is close to the type locality (25-05320
1 specimen ♂
also as COL
2406 in
ANIC), and one from Lambs Head, approximately
225 km
north of the type locality (25-
063059
1 specimen ♂
in ANIC also as COL3025). These two specimens are genetically distinct, falling in two positions in the tree. The specimen from Paluma formed a relationship with an undescribed species from the
L. palumensis
species group while the specimen from Lambs Head is a teneral male and was recovered sister to
L. dukungarri
. Upon closer examinination, we believe the Lambs Head specimen fits more closely to
L. dukungarri
than
L. latheticus
.
The diagnostic metafemoral expansion of
L. dukungarri
is absent and the pygidium and aedeagus are missing and as such, we cannot confirm with certainty the identity of this small teneral male. Thus we have not included it as material examined for either
L. dukungarri
or
L. latheticus
.
These two species occur in the same geographic region and can most easily be differentiated by the degree of impression of the elytral striae and male characters including the shape of the metafemora and aedeagi.
Matthews (1974)
designated a specimen from Boar Pocket Road,
November 1969
collected by G. Brooks as part of the
paratype
series of
L. latheticus
. This specimen (25-057919 x specimen
♂
in ANIC) is designated as a
paratype
of
L. dukungarri
new species
in this revision on the basis of diagnostic external morphology and aedeagus.