New species of Eucinetus and Noteucinetus from Australia (Coleoptera: Scirtoidea: Eucinetidae)
Author
Lawrence, John F.
text
Zootaxa
2019
2019-09-10
4668
2
151
182
journal article
25557
10.11646/zootaxa.4668.2.1
f59e1e92-ed51-43e7-8a5b-6b12f19b37e2
1175-5326
3415013
DDEB92E2-3F1B-463F-B68C-4C3E282279FF
Eucinetus similis
sp. nov.
(
Figs 20–22
,
49
,
63
,
87
,
111
,
134
)
Diagnosis.
This species differs from
E. bicolor
,
E. bicolorellus
,
E. brindabellae
,
E. dorrigo
,
E. limitaris
,
E. minutus
,
E. protibialis
, and
E. tasmaniae
in having a longer and narrower metanepisternum, less sharply acute scutellar shield, an internal eye notch and hind wings. It differs from
E. nebulosus
and
E. tropicus
in having a more elongate and narrow body (more than 1.9 times as long as wide; elytra together more than 1.57 times as long as wide) and the apical maxillary palpomere widened and obliquely truncate apically, and from
E. lorien
in having the head red, the apical maxillary palpomere less than 1.6 times as long as wide and less strongly, obliquely expanded apically, and the third antennomere much shorter than the fourth.
Description.
Length 2.70–3.10 (2.93 ± 0.16) mm; body 1.91–1.98 (1.95) times as long as combined elytral width; greatest depth 0.69–0.75 (0.70) times elytral width. Colour of head, pronotum and scutellar shield red; elytra black; undersurfaces mostly dark brown or black; legs and antennae yellowish-brown. Head 0.97 times as long as wide; distance across eyes 1.44 times distance between them; inner edge of eye with distinct notch. Labrum 0.63 times as long as wide; sides weakly curved, converging beyond middle and slightly emarginate apically. Antenna about 1.6 times as long as head width behind eyes; 3rd antennomere 0.65 times as long as 4th; 11th antennomere 1.39 times as long as 10th, 2.0 times as long as wide, with subtruncate apex. Mandibular mola well developed. Galea about 2.0 times as wide as lacinia at middle, distinctly widened and broadly rounded at apex. Apical maxillary palpomere 2.05 times as long as wide, widest subapically and obliquely truncate at apex. Apical labial palpomere subulate, 1.87 times as long as wide, with aciculate tip relatively short. Pronotum 0.34–0.50 (0.42) times as long as wide; prosternal process narrowly rounded at apex. Scutellar shield 0.21 times as wide as pronotum, 0.88 times as long as wide, with subacute apex rounded at tip. Elytra 1.62–1.73 (1.65) times as long as combined width and 4.45–7.08 (5.62) times as long as pronotum; elytral punctation and vestiture as in
Fig. 87
. Hind wings fully developed. Metanepisternum 1.46 times as long as mesepimeron, 2.7 times as long as wide, asymmetrically quadrate with moderately straight inner edge curved at each end, straight outer edge, and oblique apical edge. Metacoxal plate with outer edge about 2.75 times as long as posterior edge, which is minutely, emarginate near its mesal end. Outer (acute) mesotibial spur in male 0.39 times as long as first mesotarsomere; inner spur of equal length, parallel-sided with a blunt, cleft apex. Meso- and metapretarsal claws each with about 3 very weak teeth and with a slender, pubescent accessory lobe almost as long as claw. Parameres at about middle 1.43 times as wide as penis at same point, straight, not at all curved, with apex asymmetrically acute, with rounded outer side and straight inner side. Penis with sides gradually converging to subacute apex.
Types:
Holotype
,
♁: “
35.22S
148.48E
, Piccadilly Circus
1240m
, ACT
Feb. 84
,
J. Lawrence
,
T. Weir
,
M.-L. Johnson
,coll. / flight
intercept
window/
trough trap
” (
ANIC
type #25-067879).
Paratypes
. ACT
:
Blundell’s Creek
,
3 km
S Piccadilly Circus
(
35°22’S
,
148°50’E
),
850m
, 11.1984, flight
intercept
window/
trough trap
,
T. Weir
,
J. Lawrence
,
M. Johnson
(1,
ANIC
)
;
Piccadilly Circus
(
35°22’S
,
148°48’E
),
1240m
,
ii.1984
, flight
intercept
window/
trough trap
,
T. Weir
,
J. Lawrence
,
M. Johnson
(1,
ANIC
)
;
Wombat Creek
,
6 km
NE Piccadilly Circus
(
35°19’S
,
148°51’E
),
750m
,
ii.1984
, flight
intercept
window/
trough trap
,
T. Weir
,
J. Lawrence
,
M. Johnson
(2,
ANIC
)
;
NSW
:
Kosciusko
N. P.,
4.1 km
W Dead Horse Gap
(
36°32’S
,
148°13’E
),
1500m
,
Euc. pauciflora
woodland,
9.xii.1986
–
14.ii.1987
, flght
intercept
(window) trap, FMHD #86-645,
A. Newton
,
M. Thayer
(1,
ANIC
)
;
VIC
:
Mt. Donna Buang
,
N of Warburton
(
37°43’S
,
145°41’E
),
1200m
810,
Noth.
cunn
.
Wet
sclerophyll,
26.i–11.ii.1987
, FMHD #87-216, flight
intercept
(window) trap,
A. Newton
,
M. Thayer
(1,
ANIC
)
;
TAS
:
Sandpit For. Reserve
,
S of Orford
(
42°43’S
,
147°50’E
),
200m
, 915,
Euc. globulus
w/rainf. understorey,
17.i– 2.ii.1993
, FMHD #93-45,
ex window trap
(1,
ANIC
)
.
Distribution.
Montane regions of the ACT, southeastern NSW, eastern VIC and TAS.
Biology.
All specimens were collected in flight intercept window/trough traps.
Etymology.
Derived from the Latin
similis
, like or resembling, referring to the similarities to
E. lorien
.
Note
. The differences between this species and
E. lorien
are relatively minor ones, and it is possible that the two forms represent northern and southern populations of a single widely distributed species, comparable, perhaps, to
E. stewarti
(Broun)
in
New Zealand
.