Five New Mesocentrus Szépligeti Species From The Australian Region (Hymenoptera: Braconidae: Betylobraconinae)
Author
Papp, J.
text
Acta Zoologica Academiae Scientiarum Hungaricae
2005
51
2
97
111
journal article
10.5281/zenodo.12586471
2064-2474
12586471
Mesocentrus variicolor
sp. n.
f
(
Figs 47–55
)
Material
examined (2 f). –
Female
holotype
and
one female
(without
paratype
status):
Australia
,
New South Wales
,
Canberra
,
Uriara Forest
,
31 July 1968
, leg. I.
LOKSA
. – Female
holotype
is deposited in the Australian National Insect Collection, Canberra. –
Holotype
is in good condition: glued on a pointed card by its mesosternum. The second female specimen is in bad condition, unsuitable for
paratype
designation. It is deposited in the Hungarian Natural History Museum, Budapest.
Etymology. – The species name
“variicolor
” is an indication of its bright colour pattern.
Description of the female
holotype
. – Body
3 mm
, fore wing
2.8 mm
long. Antenna with 20 antenomeres about as long as head, mesosoma and tergites 1–2 combined. First flagellomere 2.5 times, penultimate flagellomere 2.3 times as long as broad, flagellum indistinctly attenuating distally. – Head in dorsal view (
Fig. 47
) less transverse, 1.65 times as broad as long, eye 1.25 times as long as temple, temple rather receded, occiput excavated. OOL clearly twice as long as POL, ocelli of average size. Eye in lateral view 1.65 times as high as wide, temple 0.9 times as wide as eye (
Fig. 48
: see arrows); temporal carina curved (i.e. not angular) towards occipital and hypostomal carinae (
Fig. 48
). Maxillary palp about as long as height of head. Length of malar space 1.5 times basal width of mandible. Head densely rugulose, temple less rugulose and subshiny.
Mesosoma in lateral view twice as long as high. Precoxal suture widely rugo-rugulose, mesopleuron densely and finely punctate-uneven, interspaces shiny. Mesoscutum and scutellum densely rugulose (somewhat weaker than that of vertex). Propodeum rugose. – Fore femur 2.8 times (
Fig. 49
), hind femur 3.6 times (
Fig. 50
) as long as broad medially. Claw of hind leg as in
Fig. 51
.
Fore wing: Pterostigma 3.6 times as long as wide issuing
r
clearly distally from its middle,
r
as long as width of pterostigma; submarginal cell fairly long,
3–SR
1.6 times as long as
2–SR
,
r
0.7 times as long as
2–SR
,
SR1
almost straight and 1.6 times as long as
3–SR
(
Fig. 52
). First discal cell elongate,
1–SR–M
1.6 times as long as
1–M
,
1–M
1.4 times as long as
m–cu
,
1–M
distinctly curved (
Fig. 53
).
First tegite (
Fig. 54
) a bit longer than broad behind, evenly broadening posteriorly, longitudinally striate, interstriations uneven and subshiny; laterotergite visible (see arrows in
Fig. 54
). Second tergite wide trapeziform, twice wider behind than long laterally, finely striate, more shiny than first tergite. First and second suture distinct. Further tergites polished. Ovipositor sheath in lateral view as long as hind tarsomeres 1–2 combined.
Ground colour of head, mesoscutum and scutellum brownish yellow with pale yellow and brown pattern. Cheek and palpi straw yellow. Antenna brownish yellow. Side of mesosoma dark brown, pronotum medially pale. Propodeum and tergites rusty, tergites laterally and apically darkening brown. Legs pale yellow, femora 1–2 with brownish tint, hind femur medially with dark brown ring; tarsi light brownish. Wings subhyaline, pterostigma brown, basally yellow, veins brownish.
The female specimen is similar to the female
holotype
.
1–M
of first discal cell less curved (
Fig. 55
).
Male and host unknown.
Distribution:
Australia
(
New South Wales
).
The new species,
Mesocentrus variicolor
, is nearest to
M. rutilus
sp. n.
considering the colour of their body, curved temporal carina in lateral view, clearly broadening first tergite and venation of the fore wing; the two species are distinguished by the following features:
M. rutilus
sp. n.
: Temple in dorsal view constricted, eye twice as long as temple (
Fig. 37
). Pterostigma 3.3 times as long as wide and issuing
r
somewhat less distally (
Fig. 43
). Second tergite long trapeziform, 1.2 times as broad behind as long medially (
Fig. 45
). Antenna with 21 antennomeres. Second submarginal cell fairly short,
3–SR
1.3 times the length of
2–SR
(
Fig. 43
). Legs brownish to rusty. f:
5.5 mm
.
M. variicolor
sp. n.
: Temple in dorsal view rather receded, eye 1.25 times as long as temple (
Fig. 47
). Pterostigma 3.6 times as long as wide and issuing
r
somewhat more distally (
Fig. 52
). Second tergite wide trapeziform, twice wider behind than long medially (
Fig. 54
). Antenna with 20 antennomeres. Second submarginal cell fairly long,
3–SR
1.5 times the length of
2–SR
(
Fig. 52
). Legs pale yellow with brownish to dark brown pattern. f:
3 mm
.
Figs 47–55.
Mesocentrus variicolor
sp. n.
: 47 = head in dorsal view, 48 = eye and temple in lateral view, 49 = fore femur, 50 = hind femur, 51 = claw of hind leg, 52 = distal part of right fore wing, 53 = first discal cell of fore wing of female holotype, 54 = tergites 1–2, 55 =
1–M
of first discal cell of fore
wing of a female specimen