Revision of the genus Rhytidaspis Redtenbacher, 1891 including the description of a new genus Haudrhytidaspis gen. nov. (Orthoptera: Tettigoniidae: Conocephalinae)
Author
Ingrisch, Sigfrid
text
Zootaxa
2019
2019-08-28
4661
2
343
370
journal article
25875
10.11646/zootaxa.4661.2.5
eda0d38a-f1b2-43cb-bb9b-7b8296e4f60f
1175-5326
3379495
71122FBE-0022-4D1F-B200-3946D770CAE8
Rhytidaspis genyem
sp. n.
Figs. 1L
,
2P
,
11G, L, V
Holotype
(female):
Indonesia
,
Papua
:
40 km
W. of
Hollandia
[Jayapura],
Genjam
[Genyem, Gengen,
2°46’S
,
140°12’E
], elev.
100–200 m
,
1–10.iii.1960
, leg. T.C. Maa—(Honolulu,
BPBM
).
Diagnosis.
R. genyem
sp. n.
is only known from a female. It differs from females of other species of the genus by the subgenital plate that has the basal, lateral angles of the ventral plate distinctly produced laterally and the ascending lateral areas of the subgenital plate are almost completely membranous except for the stiffened upper margin in more basal area. In other species of the genus the ventral area of the female subgenital plate has more regularly approaching lateral margins and the ascending lateral areas are partly strengthened. The green face differs so far known from the coloration in all other species. The pale instead of black antennal scrobae, scapus and pedicellus and the faintly expressed black transverse strokes on the femora it shares only with
R. nigropunctata
sp. n.
, from which it differs however by the green instead of black doted face and by the pale fastigium verticis (
Fig. 2P
).
Description.
Fastigium verticis up-curved and laterally compressed, with faint tubercles at dorsal margin in subbasal area, tip acute; on ventral side separated from fastigium frontis by a step; length of fastigium verticis before eyes
3 mm
; dorsal eye length 2.0 mm, greatest eye diameter
2.2 mm
.
Female. Subgenital plate ventral surface widened at base, then distinctly constricted and with converging lateral margins, towards tip strongly up-curved and split into two short acute lobes; lateral surfaces largely membranous with stiffened margin, almost reaching tip of ventral surface (
Figs. 11G, L, V
). Ovipositor elongate, in about basal half sub-straight with parallel margins, in apical half slightly up-curved with approaching margins to acute tip. Ventral ovipositor valves at very base with large elongate swellings that are in situ hidden by the subgenital plate (
Fig. 11L
)
Coloration. General color rather uniformly light to medium brown with remnants of pale green; might have been green when alive (
Fig. 1L
). Head and pronotum stained brown; antennal scrobae and bases of antennae of general color, not darkened as in most other species. Face and clypeus light green. Abdomen dirty brown with rather narrow black lateral bands. Pleurae, thoracic and abdominal sternites chestnut brown. Female subgenital plate ventral surface shining black; ovipositor chestnut brown, at very base and a stroke at base of ventral valves black. Tegmen orange yellow with few black dots. Legs light to medium brown with indistinct greenish sheen; spines with black tips; fore and mid femora with indistinct transverse striation; hind femora with indistinct fish-bone pattern in about basal half.
Measurements (
1 female
).—Body: 47; pronotum: 12; tegmen: 4; hind femur: 29; anterior femur: 15; antenna: 80; ovipositor:
24 mm
.
Etymology.
Named after the
type
locality, noun in apposition.