Revision of the Scytinopteridae (Hemiptera: Cicadomorpha: Scytinopteroidea) of the Queensland Triassic
Author
Lambkin, Kevin J.
text
Zootaxa
2016
4117
4
580
590
journal article
38935
10.11646/zootaxa.4117.4.9
1c5066ca-e49e-4817-9d82-bcf8e51971d4
1175-5326
257444
D156A0CF-B5E4-4465-BCBC-CDA15F029005
Mesoscytina fistulae
sp. nov.
(
Figs 4–6
)
Material.
Holotype
tegmen QM
F58695
+, Mount Crosby Locality B, collected by K.J. Lambkin. Three
paratype
tegmina, Mount Crosby Locality B: QM F6980a/b+, F6985,
F58696
+.?One other tegmen: Gayndah: QM
F58697
+.
FIGURES 4–6.
Mesoscytina fistulae
sp. nov.
: 4–5, holotype QM
F58695
(mirrored); k, hypocostal pit; lc, lower carina of costal field (Shcherbakov 1984); 6, QM
F58697
.
Description.
Tegmen
7.6–7.7 mm
long,
2.7–2.9 mm
wide (
holotype
7.6, 2.7), length/width 2.6–2.8; R slightly more angled basally than in
type
species, at this point costal space about as wide as space between R and M; RA strongly inclined; colour pattern of 4 transverse dark fasciae, a small one at the very base, then at ¼ length, ¾ length, and apically, the distal 2 joined posteriorly, possibly a couple of pale spots at apical margin (
Fig. 4
).
Notes.
There is some variation in the orientation and basal connections of the apical parallel venation. All five specimens are almost identical in size and dimensions and therefore consistently stand apart as a group from the other larger or smaller species of the genus. The Gayndah specimen is tentatively referred to the species on the basis of its size and dimensions, but noting its similarity to
M. australis
in the gently curved base of R and associated broader costal space at this point (
Fig.6
). Because of its doubtful identity and different provenance and age, it is excluded from the
type
series. The species name derives from the Latin feminine noun,
fistula
, a water pipeline, and refers to the water supply pipeline which runs along the cutting where the Mount Crosby Formation shales are exposed at Locality B.