Morphometrics in the genus Amenia and revisionary notes on the Australian Ameniinae (Diptera: Calliphoridae), with the description of eight new species
Author
Colless, D. H.
text
Records of the Australian Museum
1998
1998-05-13
50
1
85
123
https://journals.australian.museum/colless-1998-rec-aust-mus-501-85123/
journal article
10.3853/j.0067-1975.50.1998.1275
bff05bfd-3c82-4fdb-b873-50f234f60d30
0067-1975
4652889
Stilbomyella crosskeyi
n.sp.
Holotype
:
male;
15°47'S
145°14'E
,
Shiptons Flat
,
Queensland
,
18 October 1980
,
D.H. Colless
, (at light).
ANIC
No. 6151.
The
locality is a little south of
Cooktown
, north
Queensland
.
Other specimens examined
.
QUEENSLAND
. 40 0, same data as holotype, but colI.
19 October 1980
.
Coomera River
,
Lamington NP
,
1200 ft
,
28 May 1966
,
Z. Liepa
, 1 Y
.
NEW SOUTH WALES
.
28°42'S
153°17'E
,
1 km
E
Mt Warning
,
500 m
,
22 November 1976
, LF.
B. Common
&
E.D. Edwards
, 1 o.
The
last two specimens are not
paratypes
.
Very similar to S.
gloriosa,
as described by
Crosskey (1965
; as
nigrocostalis
),
but differing as follows:
Male.
Body length
6.8-8.8, mean
7.5 mm
(
6 specimens
).
Head.
Carina (in frontal view) slightly "pinched" above epistome, sides parallel or slightly tapering ventrally on ventral half, a little longer than lunula to anterior ocellus.
Gnw
0.4-0.5 of
Eyh
,
mean 0.43 (
7 specimens
) (two
New
Guinea
gloriosa
average 0.48).
Antennal
segment 3 relatively short, 0.3 of
Hdw
(two
New
Guinea
gloriosa
average 0.2), usually at most a little shorter than arista.
Thorax.
Propleuron bare.
Wing.
M-bend index 0.8-0.9.
Legs.
Mid tibia with only 1 strong
ad. Abdomen.
T3
and
T5
with conspicuous pale silvery spots laterally on the ventrally curved part of the tergite.
Genitalia
very similar to those of
gloriosa
(
Crosskey, 1965
: fig. 37), but cerci distinctly longer than surstyles
.
Female. Secondary sexual differences as for
gloriosa.
Otherwise resembling the male (but see below).
Notes. The above refers to specimens from the
type
locality. Another male from Mt Warning,
New South Wales
, has A3 much shorter, only 0.2 of
Hdw,
and therefore much shorter than the arista (as in S.
gloriosa),
and 2 strong
ad
on the mid tibia. A female from Lamington NP has the same features. Both, however, have the conspicuous pale spots on
T
3 and
T
5 that provide the most striking difference from S.
gloriosa,
and I am tentatively placing them as S.
crosskeyi
.