Habetia wau, Ingrisch, 2021

Ingrisch, Sigfrid, 2021, Revision of the genera Habetia Kirby, 1906 and Parahabetia gen. nov. from New Guinea (Orthoptera, Tettigoniidae, Conocephalinae, Agraeciini), Zootaxa 5020 (2), pp. 201-256 : 228-238

publication ID	https://doi.org/ 10.11646/zootaxa.5020.2.1
publication LSID	lsid:zoobank.org:pub:4FF882DF-334F-49C8-A576-4192B5F2654C
DOI	https://doi.org/10.5281/zenodo.5223241
persistent identifier	https://treatment.plazi.org/id/FA08E75D-AA24-807B-FDC0-314E91A26C89
treatment provided by	Plazi
scientific name	Habetia wau
status	sp. nov.

Treatment

Habetia wau View in CoL sp. nov.

Figs 2G View FIGURE 2 , 4K View FIGURE 4 , 6D View FIGURE 6 , 7F–G View FIGURE 7 , 9G View FIGURE 9 , 11K View FIGURE 11 , 15D–H View FIGURE 15 , 18G–H View FIGURE 18 , 20G View FIGURE 20 , Map 1(9).

Holotype (male): Papua New Guinea: Morobe, Wau, Nami Creek , (7°19’, 146°42’), 8.viii.1968, leg. J. Sedlacek — depository: Bernice B. Bishop Museum, Honolulu ( BPBM).

Paratypes: Papua New Guinea: same data as holotype— 3 females, 2 males (paratypes, BPBM) ; same locality as holotype, 15.i.1969, leg. J. Sedlacek — 1 male ( BPBM) ; Morobe, Edie Creek, 11.2 km west of Wau , elev. 1700 m (7°22’S, 146°40’E), 16.vii.1971, leg. J. & M. Sedlacek — 1 female ( BPBM) GoogleMaps ; NE Wau , elev. 1600–1700 m (7°17’’S, 146°44’E), 28.xii.1961, leg. J., J.H. & M. Sedlacek — 1 female ( BPBM) ; Wau , elev. 1150–1500 m (7°20’S, 146.45’E), 31.vii.1964, leg. J. Sedlacek — 1 female, 3 males ( BPBM) ; same locality, 25.iii.1966, leg. J.L. Gressitt — 1 female ( BPBM) ; Wau, Mt. Missim , elev. 1400 m (7°10’S, 146°54’E), 24.ix.1964, leg. M. Sedlacek —1 nymph female ( BPBM) GoogleMaps ; New Guinea (NE), Morobe district, Wau, Kunai Creek , elev. 1500 m (7°20’S, 146°41’E), 28.–30.v.1963, leg. P. Sganshan — 1 male ( BPBM) GoogleMaps ; New Guinea NE, Upper Watut , (6°57’S, 146°21’E), 3.v.1968, leg. J.L. Gressitt — 1 female ( BPBM) GoogleMaps .

Diagnosis. Regarding the shapes of the male titillators, H. wau sp. nov. and H. bivittata sp. nov. are closely related species that differ however by the shapes of the male abdominal appendages, details of the titillators, the female ovipositor and subgenital plate and by the absence ( H. wau ) or presence ( H. bivittata ) of a pair of black bands on the face. The male tenth abdominal tergite ends into a pair of lobes with simply rounded tip in H. wau while in H. bivittata the apical lobes are narrowed at end and curved distad; the dorsal projection of the male cercus is simply rounded in H. wau but prolonged and with wavy margin in H. bivittata , the internal process of the male cerci is little curved in both species but in H. wau it ends into a pair of about equal apical spines while in H. bivittata into a smaller subapical spine and short apical lobe with a spinule at tip. The basically U-curved male titillators of the genus Habetia are modified by voluminous sub-membranous septa in both species as illustrated in Figs 15D–H View FIGURE 15 for H. wau and Figs 14A–E View FIGURE 14 for H. bivittata . The female subgenital plate of H. wau has the baso-lateral extensions simply rounded and oriented in the same direction as the disc, they are however in some dried specimens shrunk and rolled-up, and the spine-like apical projections of the subgenital plate are shorter and separated by a wider interspace in H. wau ( Fig. 6D View FIGURE 6 ), while in H. bivittata the baso-lateral extensions are twisted against the central disc and the apical spine-like projections are stouter and longer and separated by a narrower interspace ( Fig. 6A–B View FIGURE 6 ). The females of both species can be easily separated by the shape of the ovipositor, which has the dorsal margin strongly elevated around mid-length in H. bivittata , but hardly convex, nearly straight in H wau .

Description. Coloration of face uniformly pale, of general color, few specimens with remnants of green, thus face might be green when alive; mandibles black or black with brownish spots; antennal scrobae and fastigium frontis partly or fully black or of general color; median ocellus light ( Fig. 4K View FIGURE 4 ). Femora with the following number of spines on ventral margins: (1) a 4–8, p 5–9; (2) a 3–7, p 2–6; (3) a 7–11, p 5–16 (n=15).

Male. Stridulatory file on underside of left tegmen 2.0– 2.1 mm long (mean 2.07) with 78–86 teeth (mean 82) that are at both ends very small and difficult to separate from each other, with 17–22 narrow basal teeth (mean 20) and 27–34 narrow apical teeth (mean 31); counted over the whole file length with 38–43 teeth per 1 mm (mean 39.5); in central 1 mm of file with 29–33 (mean 32) teeth; in central 0.5 mm with 14–15 teeth [n = 5] ( Fig. 18G–H View FIGURE 18 ). Tenth abdominal tergite almost twice as wide as long (1.7–1.8 times) with lateral margins curved ventrad in basal area; from apical margin deeply incised in middle resulting in a pair of roughly triangular lobes with widely rounded tips. Epiproct with medial furrow and obtuse tip ( Fig. 9G View FIGURE 9 ). Cerci narrow elongate and in apical area little curved; just before tip with a simple, compressed dorsal projection with nearly rounded, substraight or faintly angular dorsal margin; with an elongate, laterally compressed, and little wavy internal process from internal end of cercus, the process terminates into a pair of short apical teeth of sub-equal size ( Fig. 9G View FIGURE 9 ). Subgenital plate with basal margin concavely incised; lateral margins convex, basal area strongly projecting dorsad on both sides, upcurved dorsal margin descending to about mid-length and afterward forming a narrow compressed dorsal lamella; ventral disc in entire basal half with concave surface and convex lateral margins that become concave in, and little widening again behind mid-length; in nearly apical half deeply incised from hind margin, leaving only the strengthened lateral margins with a compressed dorsal lamella; at tip with a pair of small styli ( Fig. 11K View FIGURE 11 ). Titillators compressed throughout; at free base rather wide and little projecting distad; otherwise running dorsad, narrowing and subfused in about mid-length and then separating again; in dorsal area dividing into proximal and distal branches; proximal branches curved ventrad and fused at end to form in proximal view a U-shaped structure with wide margins and a medial furrow; apical branches strongly widened dorso-ventrally and with dorsal margin curved laterad; in ventral view it can be seen that the widened and sclerotized apical branches are connected to the corresponding basal branches in nearly full length to form a large wall; in lateral view with dorsal margin concave and at end little roundly projecting, afterward running ventrad to about same level as bases of titillators; at ventral margin curved distad, forming a narrowing apical projection and end into a rounded tip with serrulate margin and granular surface ( Figs 15D–H View FIGURE 15 ). Two large lateral sclerites with three-fold lamellae are also present.

Female. Subgenital plate at base in central area slightly elevated and with long and upcurved lateral lobes with obtuse tip and nearly flat surface but separated from central plate by a deep and wide furrow; ventral disc with transverse furrow in subbasal area afterward curved anterior-posteriorly with converging lateral margins that terminate into a pair of upcurved cones; apical margin faintly concave between lateral cones ( Figs 6D View FIGURE 6 , 7F–G View FIGURE 7 ). Ovipositor about as long as body; behind basal constriction straight ( Fig. 2G View FIGURE 2 ).

Measurements (8 males, 8 females).—Body w/wings: male 35.0–36.5, female 36–41; body w/o wings: male 23–28, female 21–29; pronotum: male 7–8, female 7.0–8.5; tegmen: male 25–27, female 26–31; hind femur: male 18–20, female 18–22; antenna: male 85; ovipositor length: female 19.0–23.5; ovipositor height: female 2.0– 2.3 mm.