Account
What the sources say about this taxon, as written.
diagnosis · 
Plazi
Diagnosis Ornebius aff. aperta can be reliably differentiated from other species of Ornebius , including Ornebius aperta in Auckland , only by its song, a sequence of chirps made of four or five pulses at a peak frequency of 4 kHz or less. The interval between the first two pulses is much longer than the interval between the remaining pulses. Male paraprocts pale brown, club-like in shape, with a long narrow neck at the base, and widest one fourth of the length from the apex.
description · Plazi
Description A detailed description of Ornebius aff. aperta is not included here, since I am not designating or describing a new species. Images of the main characters are in Fig. 33 . The male genitalia and the song are described in detail below, since they are the only traits that differentiate Ornebius aff. aperta from other species in the genus, including Ornebius aperta in Auckland . Measurement Ornebius aperta Otte & Alexander, 1983 Ornebius aff. aperta Otte & Alexander, 1983 male female male female Body length (mm) 7.2 (6.5–7.4) N = 4 8.1 (6.5–9.0) N = 6 6.8 (6.2–7.1) N = 7 7.3 (6.8–7.9) N = 5 Pronotum width (mm) 2.2 (2.1–2.2) N = 4 1.8 (1.7–1.9) N = 6 2.3 (2.1–2.5) N = 7 1.6 (1.4–2.0) N = 5 Pronotum length (mm) 2.6 (2.5–2.8) N = 4 1.7 (1.7–1.8) N = 6 2.6 (2.5–2.8) N = 7 1.7 (1.6–2.0) N = 5 Femur III length (mm) 4.0 (3.8–4.1) N = 4 4.4 (4.2–4.6) N = 6 3.9 (3.8–4.2) N = 7 4.4 (4.0–4.6) N = 5 Tibia III length (mm) 2.7 (2.5–2.9) N = 4 3.0 (2.7–3.1) N = 6 2.7 (2.5–2.9) N = 7 3.0 (2.6–3.1) N = 5 Number of dorsal spines on TIII inner 16 (14–17) N = 4 19 (17–20) N = 6 15 (14–16) N = 7 15 (15–16) N = 5 Number of dorsal spines on TIII outer 23 (19–25) N = 4 23 (19–27) N = 6 21 (19–22) N = 7 21 (20–23) N = 5 Number of dorsal spines on Tarsomere III-1 inner 4 (4–4) N = 4 4 (4–5) N = 6 4 (4–5) N = 7 5 (4–5) N = 5 Number of dorsal spines on Tarsomere III-1 outer 5 (5–6) N = 4 5 (4–6) N = 6 5 (5–6) N = 7 6 (5–6) N = 5 Ovipositor length (mm) – 3.3 (3.1–3.7) N = 6 – 3.4 (3.1–3.8) N = 5 OL / BL – 0.41 (0.37–0.51) N = 6 – 0.47 (0.43–0.52) N = 5 FWW (mm) 2.5 (2.3–2.5) N = 4 – 2.5 (2.4–2.8) N = 7 – FWL (mm) 3.3 (2.8–3.4) N = 4 – 3.2 (2.7–3.4) N = 7 – ST 164 (163–177) N = 3 – 177 (157–192) N = 6 – SFL (mm) 1.48 (1.45–1.58) N = 3 – 1.50 (1.40–1.86) N = 6 – tmao / tmai 0.89 (0.86–0.96) N = 4 0.93 (0.88–0.98) N = 6 0.91 (0.86–0.95) N = 7 0.87 (0.80–0.97) N = 5 tao1 / tai1 0.77 (0.71–0.87) N = 4 0.73 (0.69–0.95) N = 6 0.77 (0.55–0.82) N = 7 0.78 (0.60–0.90) N = 5 Measurement Ornebius aperta Otte & Alexander, 1983 Ornebius aff. aperta Otte & Alexander, 1983 male female male female Song (20°C) Song (23°C) Peak frequency (kHz) 5.1 – 3.75 – Pulse duration (ms) 30 – 30 – Pulse interval 1 (ms) 280 – 650–700 – Pulse interval 2 (ms) 42 – 90–95 – Chirp duration (s) 0.4 – 0.95–1.2 – Chirp interval (s) 1.1 – 2.6–2.7 – MEASUREMENTS . See Table 8 . Females are larger than males. MALE TERMINALIA ( Figs 33J–K , 36E–H ). Suranal plate without hair spikes projecting backwards from posterior margin, same as in Ornebius aperta ( Fig. 33D–E ). Paraprocts pale brown, club-like in shape, with a long narrow neck at base, and widest one fourth of length from apex ( Figs 33K , 36H ). SONG . A melodious sequence of chirps with a peak frequency at 4 kHz or less, separated by intervals of two to three seconds; each chirp consisting of 4 or 5 pulses, the first two pulses 650 ms to 700 ms apart, the remaining pulses less than 100 ms apart. Pulse duration is approx. 30 ms. See also Fig. 35 and Table 8 .
biology_ecology · Plazi
Habitat and ecology An arboreal scaly cricket, nocturnal, locally abundant. Its melodious song is heard from dusk into the night at forest edges, in urban parks and residential areas, and camping grounds.
biology_ecology · Plazi
Habitat and ecology An arboreal scaly cricket, nocturnal, locally abundant. Its melodious song is heard from dusk into the night in urban parks and in the streets of Auckland ; the cricket is common in hedges in residential areas.
description · Plazi
Description For a detailed description of Ornebius aperta see Otte & Alexander (1983: 396–397) and Ramsay (1991) . Images of the main characters are in Fig. 33 . The male genitalia and the song are described in detail below, since they are the only traits that differentiate Ornebius aperta from other species in the genus, including Ornebius aff. aperta in Northland . MEASUREMENTS . See Table 8 . Females are larger than males. MALE TERMINALIA ( Figs 33D–E, G–I , 36A–D ). Suranal plate without hair spikes projecting backwards from posterior margin ( Fig. 33D–E ). Paraprocts pale brown, club-like in shape, narrowest at base and widest one fifth of length from apex ( Figs 33G–I , 36D ). SONG . A melodious sequence of chirps with a peak frequency between 4.5 kHz and 5.6 kHz, separated by intervals of approx. 1 second; each chirp consisting of 3 pulses, the first two pulses 280 ms apart, the second and third pulses 40 ms apart. Pulse duration is approx. 30 ms. See also Fig. 34 and Table 8 .
diagnosis · Plazi
Diagnosis Ornebius aperta can be reliably differentiated from other species of Ornebius , and from the population further north in Northland , only by its song, a sequence of chirps made of three pulses at a peak frequency between 4.5 and 5.6 kHz. The interval between the first two pulses is much longer than the interval between the second and third pulses. Male paraprocts pale brown, club-like in shape, narrowest at the base and widest one fifth of the length from the apex.
iNaturalist