Jewel Bugs of Australia (Insecta, Heteroptera, Scutelleridae)
Author
Gerry Cassis
Author
Loren Vanags
text
Denisia
2006
19
275
398
journal article
10.5281/zenodo.12996779
12996779
Morbora schoutedeni
BERGROTH
1904
(
Figs 11c
, 13g-i, 14, 15,
Table 5
)
Morbora schoutedeni
BERGROTH
1904: 356
(n.sp.);
SCHOUTEDEN
1904: 87
(list, habitus);
KIRKALDY
1909: 265
(catalogue);
GROSS
1975: 92
(description, habitus);
MCDONALD
&
CASSIS
1984: 548
(description);
CASSIS
&
GROSS
2002: 586
(catalogue)
Diagnosis:
Morbora schoutedeni
is recognised by the following combination of characters: dorsum with broad fan-shaped setae, intermixed with curly sericeous setae (Figs 13g-i); AI longest antennal segment; pronotal lateral margins expanded (
Fig. 11c
); ex-ocorium expanded (
Fig. 11c
); pygophore (
Fig. 14a
); parameres with short apical hook (
Fig. 14b
); CAI membraneous, lobe-like, bifid (
Figs 14c, d
); CAII elongate, sickle-shaped, distally bifurcate (
Figs 14c, d
); and, CAIII lobe-like, fused basally, membraneous (
Figs 14c, d
).
Description: Small species, males 4.51- 4.97 mm, females 5.00-5.88 mm.
Colouration.
Dorsum dark brown, with contrasting markings, most notably with broad W-shaped marking on posterior 1/2 of scutellum (
Fig. 11c
).
Vestiture.
Dorsum with dense distribution of erect, elongate setae, intermixed with curly sericeous setae, mostly on head and pronotum (Figs 13g-i); pronotum and particularly scutellum with dense distribution of broad fan-shaped setae (Figs 13g-i).
Structure.
Antennae: AI longest segment, little longer than AIV. Labium: LI & LII, and LIII & LIV subequal in length. Pronotum: lateral margins greatly expanded (
Fig. 11c
); anterolateral angles surpassing anterior margin of eyes (
Fig. 11c
). Hemelytra: costal margins greatly expanded laterally (
Fig. 11c
). Male Genitalia: pygophore with narrow genital opening (
Fig. 14a
); parameres with a short apical hook (
Fig. 14b
); CAI large, membraneous, lobe-like, bifurcate, without sclerotization (
Figs 14c, d
); CAII elongate, sickle-shaped, heavily sclerotized, with short distal bifurcation, antler-like (
Figs 14c, d
); CAIII broad, membraneous, medially fused; vesica broad, heavily sclerotized, weakly S-shaped (
Figs 14c, d
).
Measurements.
Table 5
.
Material examined:
New South Wales
:
1♀
,
Baraba
, 30.115S 148.790 E,
I Oliver
,
February 2001
, Site WALCOL00162, ex pitfall trap, (
AM
)
;
1♀
,
Nerrub
, 30°04’41“S 148°56’53“E,
I Oliver
,
February 2001
, Site WALCOL00285, ex pitfall trap (
AM
)
;
1♀
,
Yetta
, 30°27’04“S 148°41’35“E,
I Oliver
,
February 2001
, Site WALCOL00068, ex pitfall trap (
AM
)
;
1♀
,
Womba
, 30°23’60“S 148°41’53“E,
I Oliver
,
February 2001
, Site WALCOL00568, ex pitfall trap (
AM
)
;
2♂♂
,
Bogan River
,
J Armstrong
(AM
;
Queensland
:
1♂
,
Clermont
,
November 1929
,
KK Spence
(
AM
)
;
Western Australia
:
2♀♀
,
Pilbara District
,
Hammersley Station
,
Kaengaenarina
well,
500 m
from well, 22°15’44“S 159°48’38“E,
14-22 April 2005
,
S Lassau
,
M Elliott
,
L Kampen & M Bulbert
, PILB126/05P (
AM
).
Distribution: This species is broadly distributed in Australia (New South Wales, Northern Territory, Queensland, South Australia) in semi-arid and arid areas (
Fig. 15
). In this work we record it from Western Australia (Pilbara District). It is sympatric with
M. australis
at a number of sites in eastern Australia (NSW: Yelta, Nerrub; QLD: Clermont).
Host plants and habitats.
Morbora schoutedeni
is a ground-dwelling species, which has been mostly collected in pitfall traps. As with the other
Morbora
species
, nothing is known of its food preferences.
Remarks:
BERGROTH
(1904)
first described this species from Townsville (Queensland).
GROSS
(1975)
redescribed it, and diagnosed it in part by the reportedly subequal AII(a) (as third segment) and AII(c) (as fourth segment). In our work, we have measured specimens of all three species, and found this character to not have diagnostic value, with continuous variation existing, such that AII(b) can be longer than AII(a), and overlaps in the ranges of these characters were found with the other
Morbora
species.
This species is distinctive having the broad fan-like setae that are very densely distributed on the pronotal disc and scutellum (Figs 13g-i). The conjunctival appendages are also distinctive, with medially fused CAIII, and CAII with a short distal bifurcation.