Nisitrus musicus Ingrisch, 1987

Tan, Ming Kai, Wahab, Rodzay bin Haji Abdul, Japir, Razy, Chung, Authur Y. C. & Robillard, Tony, 2021, Revision of the cricket genus Nisitrus Saussure (Orthoptera: Gryllidae: Eneopterinae) and descriptions of five new species, European Journal of Taxonomy 761 (1), pp. 1-75: 58-61

publication ID

https://doi.org/10.5852/ejt.2021.761.1449

publication LSID

lsid:zoobank.org:pub:519E2F56-40E1-4431-BC90-8484E308D16E

DOI

http://doi.org/10.5281/zenodo.5170033

persistent identifier

http://treatment.plazi.org/id/039487A4-FFD5-FFC0-FDBC-F26CFD86FB63

treatment provided by

Felipe

scientific name

Nisitrus musicus Ingrisch, 1987
status

 

Nisitrus musicus Ingrisch, 1987  

Figs 5 View Fig , 7F View Fig , 9B View Fig , 10G View Fig , 11G View Fig , 12G View Fig , 13F View Fig , 14G View Fig , 16F View Fig , 17L–M View Fig , 26 View Fig , 28; Tables 1–2 View Table 1 View Table 2 , 9

Nisitrus musicus Ingrisch, 1987: 178   .

Nisitrus musicus   – Tan et al. 2019: 303 View Cited Treatment . — Cigliano et al. 2020 ( Orthoptera   Species File Online).

Diagnosis (revised from Ingrisch, 1987)

Frons whitish with a black stripe between eyes and black mouthparts; femora reddish brown with a black stripe dorsally; male genitalia with pseudepiphallus slenderer than in congeners. This species is most similar to N. danum   sp. nov., also from Borneo, from which it differs by mouthparts black (instead of yellow), FIIIs black dorsally and female papilla. While this species is restricted to the highlands in the Kinabalu range, N. danum   sp. nov. occurs in the Danum Valley and Tawau Hill areas at the east of Sabah. It is also similar to N. vittatus   , N. crucius   sp. nov. and N. malaya   sp. nov., from which it differs by slightly larger and slenderer habitus, frons whitish with black front head and mouthparts, FIIIs with a black pattern dorsally, and slenderer pseudepiphallus.

Material examined

Holotype

MALAYSIA – Sabah • ♂; Mount Kinabalu ; 6°07′16.09″ N, 116°35′46.86″ E; 1000–1800 m a.s.l.; 5–7 Aug. 1984; S. Ingrisch leg.; SMFD. GoogleMaps  

Paratype

MALAYSIA – Sabah • 1 ♀; same collection data as for holotype; SMFD GoogleMaps   .

Additional specimens

MALAYSIA – Sabah • 6 ♂♂; Mount Kinabalu Mesilau Trail ; 6°02′37.74″ N, 116°35′46.30″ E; 5000 ft a.s.l.; 13–15 Mar. 1964; S. Kueh (Royal Society Expedition) leg.; NHMUK GoogleMaps   1 ♀; Mount Kinabalu Mesilau Trail ; 6°02′37.74″ N, 116°35′46.30″ E; 15 Feb. 1964; Royal Society Expedition leg.; NHMUK 012497572 View Materials GoogleMaps   3 ♂♂; Mount Kinabalu ; 6°02′37.74″ N, 116°35′46.30″ E; 20 Mar. 1964; S. Kueh (Royal Society Expedition) leg.; NHMUK GoogleMaps   1 ♂; west of 3.1 km on Road Tenom Keningau, depleted lowland forest ; 5°15′39.17″ N, 115°58′30.22″ E; 240 m a.s.l.; 25 Jun. 1986; J. Huisman leg.; RMNH GoogleMaps   2 ♀♀; Tenompok 30 miles east of Jesselton; 6°00′10.40″ N, 116°31′45.20″ E; 1460 m a.s.l.; 17–21 Oct. 1958; T.C. Maa leg.; BPBM GoogleMaps   2 ♂♂; same collection data as for preceding; BPBM GoogleMaps   2 ♂♂; west coast Residency, Kundasan ; 5°57′37.51″ N, 116°33′18.03″ E; 1240 m a.s.l.; 15 Oct. 1958; T.C. Maa leg.; BPBM GoogleMaps   4 ♂♂; southern part of Kinabalu National Park; 5°59′50.78″ N, 116°33′39.77″ E; ~ 1500–2000 m a.s.l.; 26 Apr.– 1 May 2013; A. Gorochov, M. Berezin, V. Gorochova and E. Tkatsheva leg.; PII: N52; ZIN GoogleMaps   3 ♀♀; same collection data as for preceding; ZIN GoogleMaps   5 ♂♂; Mount Trus Madi ; 5°33′53.94″ N, 116°30′11.31″ E; ~ 1000 m a.s.l.; 13–25 May 2007; A.V. Gorochov leg.; PIII: N37 Nmu3; ZIN GoogleMaps   2 ♀♀; same collection data as for preceding; ZIN GoogleMaps   2 ♂♂; Mount Kinabalu ; 6°07′16.09″ N, 116°35′46.86″ E; J. Zhang leg.; MNHN GoogleMaps   1 ♂; same locality data as for preceding; Dec. 2018; J. Zhang leg.; PII: N48; MNHN-EO- ENSIF11070 GoogleMaps   3 ♀♀; same locality data as for preceding; J. Zhang leg.; MNHN GoogleMaps   2 ♀♀; Tenompok near Kinabalu; 6°00′10.40″ N, 116°31′45.20″ E; 4500 ft a.s.l.; 18 Mar. 1929; H.M. Pendlebury leg.; identified as Nisitra vittata   by L. Chopard; MNHN-EO-ENSIF1738, MNHN-EO-ENSIF1743 GoogleMaps   1 ♀; “ Crocker Range National Park not far from Keningau Town, secondary-primary forest ”; 5°28′07.79″ N, 116°04′22.95″ E; 1000–1300 m a.s.l.; 6 May 2013; A. Gorochov, M. Berezin, V. Gorochova and E. Tkatsheva leg.; N29-NboG2; ZIN GoogleMaps   1 ♀; Kinabalu Park, Ranau ; 6°0′22.0″ N, 116°32′33.5″ E; 3 Aug. 2018; lhurteau leg.; iNaturalist.org/observations/15440494 GoogleMaps   1 ♀; Ranau, Kinabalu Park World Heritage Site ; 6°10′18.9″ N, 116°43′45.9″ E; 10 Mar. 2018; rbeunen leg.; iNaturalist.org/observations/18843361 GoogleMaps   1 ♂; Kinabalu Park, Kota Belud ; 6°3′24.8″ N, 116°33′58.7″ E; 1 Aug. 2019; a1virginia leg.; iNaturalist.org/observations/30690023 GoogleMaps   1 ♀; Kota Belud District ; 6°0′49.0″ N, 116°30′35.3″ E; 28 Jun. 2019; paulsullivan25 leg.; iNaturalist.org/observations/27783166 GoogleMaps   1 juvenile; Tambunan ; 5°45′11.5″ N, 116°30′0.6″ E; 24 Jun. 2019; paulsullivan25 leg.; iNaturalist.org/observations/28232546 GoogleMaps   1 ♂; Crocker Range, 89300 Tambunan ; 5°45′0″ N, 116°30′0″ E; 24 Jun. 2019; paulsullivan25 leg.; iNaturalist.org/observations/28232543 GoogleMaps   1 ♀; Tambunan ; 5°45′10.9″ N, 116°30′1.9″ E; 24 Jun. 2019; paulsullivan25 leg.; iNaturalist.org/observations/28232551 GoogleMaps   1 juvenile; 89300 Ranau ; 6°12′26.5″ N, 116°38′27.2″ E; 2 Aug. 2019; a1virginia leg.; iNaturalist.org/observations/30808860 GoogleMaps   1 ♀; Kinabalu Park, Ranau ; 6°0′19.4″ N, 116°32′36.4″ E; 25 Oct. 2019; twan3253 leg.; iNaturalist.org/observations/35365957 GoogleMaps   1 juvenile; Tambunan ; 5°45′58.3″ N, 116°20′32.9″ E; 31 Dec. 2019; F. Jarvis leg.; iNaturalist.org/observations/37398325 GoogleMaps   1 ♂; Kinabalu Park, Ranau ; 6°0′31.1″ N, 116°32′34.2″ E; 23 Nov. 2016; K. O’Brien leg.; iNaturalist.org/observations/42450618 GoogleMaps   around 20 individuals; Kinabalu Park, Ranau ; 6°0′22.9″ N, 116°32′38.6″ E; 23 Nov. 2016; K. O’Brien leg.; iNaturalist.org/observations/42450617 GoogleMaps   2 ♀♀; Kundasang ; 6°0′27.0″ N, 116°32′1. 3″ E; 1 Feb. 2017; V. Volkova leg.; iNaturalist.org/observations/51690441 GoogleMaps   1 ♀; Kinabalu Park, Ranau ; 6°1′45.5″ N, 116°32′49.1″ E; 4 Jan. 2020; F. Jarvis leg.; iNaturalist.org/observations/37711505 GoogleMaps   1 ♀; Ranau ; 6°1′36.8″ N, 116°36′11.1″ E; 4 Jul. 2020; M. Haffiszul Mohd Said leg.; iNaturalist.org/observations/51878361 GoogleMaps   1 ♀; Kinabalu Park, Ranau ; 6°1′38.3″ N, 116°36′11.2″ E; 4 Jul. 2020; tanuki18 leg.; iNaturalist.org/observations/52011854 GoogleMaps   1 ♀; Kinabalu Park, Kota Belud ; 6°1′36.7″ N, 116°32′51.8″ E; 13 Mar. 2019; D. Shaw leg.; iNaturalist.org/observations/23278330 GoogleMaps   .

Additional description (after Ingrisch 1987)

Male

GENITALIA ( Fig. 16F View Fig ). Pseudepiphallus very slender and elongated, distinctly longer than wide, anterior and anterior margins gently concave. Pseudepiphallic lophi slightly longer than wide (at base), subacute and slightly folded dorsally at apex, sclerotized laterally only, widely spaced apart from each other. Rami straight, swollen preapically, slightly diverging. Pseudepiphallic parameres narrow, diverging posteriorly, their basal sclerite short and narrow. Ectophallic lateral sclerites appearing rounded. Ectophallic apodemes straight and parallel. Endophallic sclerite elongated, its posterior lateral arms short.

Female

GENITALIA. Copulatory papilla conical, smaller and stout; apex folded ventrally, elongated, pointed; dorsal face with a weakly sclerotized area; at ventro-anterior end a narrow oblong rim ( Fig. 17L–M View Fig ).

Juvenile ( Fig. 28D–E View Fig )

Similar to adults in colour patterns, but younger instars differ by pronotal disk grey with dark longitudinal stripes, lateral lobes with a grey longitudinal stripe slightly ventral of the dorsal-third, sometimes in femora with white dorsal stripe, FIII with a white dorsal stripe at basal half. Legs darker in older instars, similar to adults.

Measurements

See Table 9.

Ecology

Adult and nymphal individuals have been observed to aggregate in large number (~20 individuals) on the same plant ( Fig. 28E View Fig ).

Distribution

Borneo (Mount Kinabalu, Trus Madi, Tenompok, Tenom Keningau in Sabah) ( Fig. 5 View Fig ).

Type locality

Borneo: Sabah: Mount Kinabalu.

Calling song (n = 1 male, 9 echemes, MNHN-SO-2020-2857)

The calling song consists of long homogeneous bouts formed of very short echemes consisting of doublets of syllables; echeme duration is 29.7 ± 1.1 ms (28.4–31.3 ms); echeme period is 72.2± 2.1 ms (69.8– 76.8 ms); downtime between consecutive echemes is 42.5 ± 2.2 ms (39.4–45.9 ms). Duration for first and second syllables of the doublets are as follows: 7.5± 0.6 ms (6.6–8.1 ms) and 18.7± 1.5 ms (15.8–20.5 ms); with second syllable usually with greater amplitude than the first. The song spectrum consists of a series of harmonics, with two main peaks in the first two harmonics: first harmonic (fundamental frequency) which is also the dominant frequency peaks at 5.46 ±0.03 (5.42–5.51) kHz; second harmonic peaking at 10.93± 0.04 (10.88–11.02) kHz.

Table 9. Measurements of Nisitrus musicus Ingrisch, 1987 (in mm, means in brackets).

  Ias Dorsal spines of TIII Ibs Oas Obs TaIIIs OL
Males (n = 5) 11–13 (12) 2–4 21–24 (22) 2–7 2–3
Females (n = 5) 12–13 (13) 2–4 20–23 (21) 2–6 2–3 16.3–22.5 (19.3)
RMNH

Netherlands, Leiden, Nationaal Natuurhistorische Museum ("Naturalis") [formerly Rijksmuseum van Natuurlijke Historie]

BPBM

USA, Hawaii, Honolulu, Bernice P. Bishop Museum

ZIN

Russia, St. Petersburg, Russian Academy of Sciences, Zoological Institute

MNHN

France, Paris, Museum National d'Histoire Naturelle

NHMUK

Natural History Museum, London

RMNH

National Museum of Natural History, Naturalis

BPBM

Bishop Museum

ZIN

Russian Academy of Sciences, Zoological Institute, Zoological Museum

MNHN

Museum National d'Histoire Naturelle

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Orthoptera

Family

Gryllidae

Genus

Nisitrus

Loc

Nisitrus musicus Ingrisch, 1987

Tan, Ming Kai, Wahab, Rodzay bin Haji Abdul, Japir, Razy, Chung, Authur Y. C. & Robillard, Tony 2021
2021
Loc

Nisitrus musicus

Ingrisch S. 1987: 178
1987