New species of Australian arid zone chelonine wasps from the genera Phanerotoma and Ascogaster (Hymenoptera: Braconidae) informed by the ‘ Bush Blitz’ surveys of national reserves
Author
Kittel, Rebecca N.
Author
Austin, Andrew D.
text
Journal of Natural History
2015
2015-07-31
50
211
262
http://dx.doi.org/10.1080/00222933.2015.1074747
journal article
21297
10.1080/00222933.2015.1074747
eadd473a-210b-4c1f-a99d-0eb373d15b12
1464-5262
3983279
054A948A-5B2F-4A23-BC77-A8F9239094C0
Ascogaster rubriscapa
sp. nov.
(
Figures 7a
–
e
,
15
)
Description (female)
Body measurements.
Length of body
4.4 mm
; ratio of antenna to body 0.5; ratio of length of fore wing to body 0.7; ratio of length of metasoma to mesosoma 1.4.
Head.
Antenna with 19 antennomeres; ratio of length of third antennomere to fourth 1.2; ratio of length of third, fourth, penultimate and terminal antennomere 5.8, 4.8, 1.7 and 2.3 times their width, respectively; ratio of length of eye in dorsal view to length of temple 5.8; ocelli isosceles; imaginary line between anterior margins of posterior ocelli is not touching the anterior ocellus; ratio of width of face in anterior view to its height 2.4; ratio of width of clypeus to its height 2.0; clypeus without teeth; ratio of length malar space to base of mandible 2.8; face punctate; frons rugose; eyes glabrous; ratio posterior ocelli:LOL:POL:OOL 1.0:3.0:1.5:3.0.
Mesosoma.
Middle lobe of mesoscutum punctate; notauli present; mesoscutellum shiny, fine punctate, weakly convex; mesopleuron shiny, punctate; precoxal sulcus present; ratio of height of mesosoma to its length 1.5; hind coxa shiny, fine punctate; ratio of length of hind tibia to hind tarsus 1.0; ratio hind coxa, hind femur, hind tibia and hind tarsus 1.7, 5.6, 4.7 and 11.0 times their width, respectively; ratio of length of posterior spur to length of basal tarsus 0.5; fore wing: 2-R1 absent; ratio of length of 1-R1 to length of pterostigma 1.0; ratio of width of pterostigma to its length 2.8; ratio r:3-SR:SR-1:r-m 1.0:0.7:4.2:0.8; SR-1 completely sclerotised; 1-SR+M emanating from 1+M; 2-SR+M antefurcal.
Metasoma.
Shape of metasoma long oval in dorsal view; ratio of width of metasoma to its length 0.48; carapace broadens strongly to posterior end in lateral view; ratio keel to metasoma length 0.11; carapace rugose.
Colour.
Black; except legs, pedicel, tegula and wing venation brown.
Diagnosis
Superficially similar to
A. prolixogaster
, but
A. rubriscapa
lacks the elongated tip of the carapace. Overall, it can be distinguished from all other Australian
Ascogaster
species by the combination of its colour and size, the shape of the carapace and the number of antennomeres. In addition,
A. rubriscapa
is one of only five species, along with
A. ferruginegaster
,
A. prolixogaster
and two undescribed species (
Ascogaster
sp. 25 and
Ascogaster
sp. 28), that has a 3-bp indel in its
CO1
sequence at position 271
–
273.
Specimens examined
Holotype
,
Australia
(
South Australia
)
:
1 ♀
,
“
25
–
28 October 2010
,
Bon Bon Station
30° 37.56'S
,
135°24.18'E
,
S. Mantel
,
F. Colombo
,
R. Kittel
&
G. Taylor
, MT amongst
Senna artemisioides
,
Acacia tetragonophila
,
Acacia aneura
, and
Acacia victoriae
; Bush Blitz survey 367 Malaise 9
”
(
SAM
).
Male.
Unknown.
Biology
Unknown.
Etymology
The name refers to the red scape of the specimen.
Distribution
South Australia
(
Bon Bon Station
;
Figure 15
)
.
CO1
sequence
Genbank accession number for this species is
KJ438533
.