Nisitrus insignis Saussure, 1878

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: 39-43

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.5170017

persistent identifier

http://treatment.plazi.org/id/039487A4-FFCA-FFD6-FDBA-F15CFABDF811

treatment provided by

Felipe

scientific name

Nisitrus insignis Saussure, 1878
status

 

Nisitrus insignis Saussure, 1878  

Figs 2A View Fig , 5 View Fig , 7D View Fig , 8F View Fig , 10E View Fig , 11E View Fig , 12E View Fig , 13D View Fig , 14E View Fig , 16D View Fig , 17H–I View Fig , 22; Tables 1–2 View Table 1 View Table 2 , 7 View Table 7

Nisitrus insignis Saussure, 1878: 515   .

Crystallomorpha sumatrensis Rehn, 1909: 209   . Syn. nov.

Nisitra insignis   – Kirby 1906: 87. — Chopard 1968: 352.

Nisitrus insignis   – Chopard 1968: 352. — Vicente et al. 2017: 2203 (molecular phylogeny). — Hollier et al. 2013: 487 (no types in MHNG). — Cigliano et al. 2020 ( Orthoptera   Species File online).

Nisitrus sumatrensis   – Robillard & Desutter-Grandcolas 2004a: 276 (morphological phylogeny).

Nisitrus hyalinus   – Chopard 1929: 110. — Robillard & Desutter-Grandcolas 2004a: 276 (morphological phylogeny).

Nisitrus sp.   – Preston-Mahfam 2000: 1 (mating behaviour).

Diagnosis

Of smaller size but stouter habitus than congeners. Vertex coloration ranging from black with creamcoloured margins around eyes and fastigium to cream-coloured with a strong longitudinal black band and one or two faint transverse black band (forming a T- or a cross-shaped black pattern). FIIIs brown, with a brown longitudinal stripe along external ventral half; sometimes dorsal margin with a paler longitudinal stripe. Dorsal field of male FW always with cream-coloured triangular (sometimes rounded) patch, with very distinctly different venation; harp very small, slightly longer than wide, with one distinct straight oblique vein. This species is similar to N. malaya   sp. nov. and N. vittatus   but differs by legs with lighter colouration and dorsum of head yellow with variable black pattern (instead of entirely black). This species also differs from the sympatric N. hughtani   sp. nov. by smaller size, frons yellow (black in N. hughtani   sp. nov.) and vertex colouration pattern; FW lateral field M/R area dark (instead of forming a clearly defined white/yellow stripe), and female FW dorsal field with veins yellow (instead of mostly black).

Material examined

Lectotype (here designated)

INDONESIA – Sumatra • ♀; “ Neit Suma ” [North Sumatra]; 1853; Mus. Caes.Vindobon; NMW.  

Additional specimens

INDONESIA – Sumatra • 1 ♂ (holotype of N. sumatrensis   ); R. Weber leg.; No. 20486; AMNH   1 ♂; “ Mentawei ” [ Siberut ] “Siberoet”; 1°23′17.3″ S, 98°56′7.7″ E; 22 Sep. 1924; H.H. Karny leg.; MNHN GoogleMaps   2 ♂♂; same locality data as for preceding; 8 Sep. 1924; H.H. Karny leg.; MNHN GoogleMaps   2 ♀♀; same locality data as for preceding; 8 Sep. 1924; H.H. Karny leg.; identified as Nisitra hyalina   by L. Chopard; MNHN GoogleMaps   3 ♀♀; same locality data as for preceding; 12 Sep. 1924; H.H. Karny leg.; MNHN GoogleMaps   3 ♀♀; same locality data as for preceding; Sep. 1924; C.B. K. and N. S. leg.; MNHN GoogleMaps   3 ♂♂; same locality data as for preceding; Sep. 1924; C.B. K. and N. S. leg.; MNHN GoogleMaps   ; • 1 ♂; “Mentawei” Sipora Island ; 2°13′28.7″ S, 99°40′9.4″ E; Oct. 1924; C.B. K. and N. S. leg.; identifed Nisitrus brunnerianus   by T. Robillard, 2004; MNHN-EO-ENSIF1748 GoogleMaps   1 ♀; same collection data as for preceding; MNHN GoogleMaps   1 ♀; “Mentawei” [ Siberut ] “Siberoet”; 1°23′17.3″ S, 98°56′7.7″ E; Sep. 1924; C.B. K. and N. S. leg.; ZRC GoogleMaps   1 ♂; same collection data as for preceding; PII: N55; ZRC GoogleMaps   2 ♀♀; Sibolangit ; 3°18′2″ N, 98°34′8″ E; Sep.–Oct. 1929; D.V. Leeuwen leg.; MNHN GoogleMaps   2 ♂♂; same collection data as for preceding; MNHN GoogleMaps   2 ♀♀; Sibolangit ; 3°18′2″ N, 98°34′8″ E; 8 Oct. 1925; Fulmek and H. Karny leg. GoogleMaps   ; • 2 ♀♀; 20 km east of Sasak environs of Harau Valley National Park; 0°4′57″ S, 100°39′12″ E; 600 m a.s.l.; 24–26 Nov. 1999; A.V. Gorochov leg.; ZIN GoogleMaps   3 ♂♂; same collection data as for preceding; ZIN GoogleMaps   1 ♀; Pematang Siantar “Pem. Siantar”, Research Centre ? “Prapat Hutan Penelitian”; 10–1100 m a.s.l.; 10 Mar. 1993; S. Ingrisch leg.; SMTD   1 ♂; same collection data as for preceding; SMTD   2 ♂; Alas Valley, Belelutu ; 3°43′ N, 97°38′ E; ca 320 m a.s.l.; 3–8 Aug. 1972; J. Krikken leg.; RMNH GoogleMaps   1 ♀; Alas Valley, vicinity of Gumpang; 3°48′ N, 97°29′ E; 13 Jun. 1972; J. Krikken leg.; RMNH GoogleMaps   1 ♀; Deli Sibolangit Nature Reserve ; 3°19′ N, 98°35′ E; 500 m a.s.l.; 29 Jul. 1972; J. Krikken leg.; RMNH GoogleMaps   1 ♂; Soban Ajam ; Jul. 1916; E. Jacobson leg.; RMNH   2 ♀♀; Kuala Simpang , lowland forest ; 4°17′3.7″ N, 98°3′29″ E; Jan. 1954; A. Sollaart leg.; RMNH GoogleMaps   1 ♀; Serdang, Tanjong Morawai ; 1882; B. Hagen leg.; RMNH   2 ♀♀; Sumatra Expedition 1877–1878 leg.; RMNH   1 ♀; Ketambe, at Jeb Tenggara ; 3°41′6″ N, 97°44′57″ E; 350 m a.s.l.; 18 Nov. 1973; H.D. Rijksen leg.; RMNH GoogleMaps   1 ♂; Medan ; 3°35′10″ N, 98°40′19″ E; 20 Jun. 1949; Kalshoven leg.; RMNH GoogleMaps   1 ♂; 1908; E. Jacobson leg.; RMNH   1 ♂; Padang Panjang, Singalang ; 0°54′9″ S, 100°23′16″ E; 700 m a.s.l.; 15 Feb. 1995; H. Deumer and M. Schaarschmidt leg.; N5; MNHN-EO-ENSIF4180 GoogleMaps   2 ♀♀; 2 km from Padang Panjang ( Taglang ) [Talang?]; “ 3.9.1991 ”; Wolfram Guidatti leg.; MNHN   2 ♂♂; [ Lubu ?] “Lubu Sampin”; 19 Jan. 1885; MHN   1 ♀; [ Lubu ?] “Lubu Sampin”; 2 Dec. 1884; MHN   2 ♀♀; Padang in Batangproepoe “Pad. Bovenl”; 0°54′9″ S, 100°23′16″ E; Nov. 1924; C.B. K. and N. S. leg.; ZRC GoogleMaps   1 ♂; Jambi “ Djambi ”; O. Posthumus leg.; MNHN   1 ♂; “ Habinsaran Tangga ”; 2 Aug. 1928; J.C. v. d. MeerMohr leg.; MNHN   1 ♀; same collection data as for preceding; MNHN   1 ♂; Fort de Kock ; 0°18′1″ S, 100°22′8″ E; 920 m a.s.l.; 1924; E. Jacobson leg.; MNHN GoogleMaps   1 juvenile; same collection data as for preceding; MNHN GoogleMaps   1 ♀; same collection data as for preceding; MNHN GoogleMaps   1 ♂; Soilak Daras, Korinchi Valley ; 1°41′12″ S, 101°13′46″ E; 3100 ft a.s.l.; Mar. 1914; NHMUK GoogleMaps   1 ♀; Lut [“Laut″] Tawar ; 4°37′36″ N, 96°51′4″ E; 1400 m a.s.l.; 23 Dec. 1929; H.T. Pagdan leg.; NHMUK GoogleMaps   1 ♂; Dohrn leg.; identified as Nisitrus hyalinus   by L. Chopard; MNHN   1 ♀; Dohrn leg.; MNHN   1 ♀; Padang in Batangproepoe “Pad. Bovenl”; 0°54′9″ S, 100°23′16″ E; 9 Aug. 1920 “20”; MNHN GoogleMaps   1 ♂; same locality data as for preceding; MNHN GoogleMaps   3 ♀♀; same locality data as for preceding; MNHN GoogleMaps   1 ♂; Medan ; 3°35′10″ N, 98°40′19″ E; Mjöberg leg.; GNME GoogleMaps   1 ♀; Dolok Baros ; 1906; “Maindon” leg.; MNHN   1 ♀; Medan Batu-Seri ; 3°35′10″ N, 98°40′19″ E; 10 Mar. 1900; B. Jachan leg.; ZMH GoogleMaps   1 ♀; Deli ; 3°19′ N, 98°35′ E; 3 Jan. 1896; Gebr. Siemssen leg.; ZMH GoogleMaps   3 ♂♂; Deli [Bindjai] “Bindjey-Estate”; 3°36′44″ N, 98°29′20″ E; 28 Apr. 1894; W. Burchard leg.; ZMH GoogleMaps   1 ♀; same collection data as for preceding; ZMH GoogleMaps   1 ♂; A. Grubauer leg.; ZMH   1 ♂; “ Anei Kloof ”; 500 m a.s.l.; 1925; E. Jacobson leg.; ZMH   1 ♀; Fort de Kock ; 0°18′1″ S, 100°22′8″ E; 920 m a.s.l.; 1925/1926?; ZMH GoogleMaps   1 ♂; “ Deli ”; 3°19′ N, 98°35′ E; MNHN GoogleMaps   1 ♀; same locality data as for preceding; MNHN GoogleMaps   1 ♂; v. W. leg.; MNHN   1 ♀; v. W. leg.; MNHN   1 ♂; “ Sumatra ”; MNHN   1 ♀; “ Sumatra ”; MNHN   3 ♀♀; Haran Kloof ; 0°27′14.6″ S, 101°24′53.192″ E; 23 Apr. 1929; Prince Leopold leg.; RBINS GoogleMaps   1 ♂; same collection data as for preceding; RBINS GoogleMaps   1 ♂; Singalang [Mount Singgalang]; 0°24′36″ S, 100°19′51″ E; 23 Apr. 1929; Prince Leopold leg.; RBINS GoogleMaps   1 ♂; Medan S.O.K. [ Deli River ]; 3°35′42.7″ N, 98°40′20.0″ E; Fulmek L. leg.; NHMW GoogleMaps   1 ♂; Labuhan Batu ; 2°0′4.8″ N, 99°53′54.1″ E; 22 Sep. 2020; K.S. Zebua leg.; iNaturalist.org/observations/60403336 GoogleMaps   1 ♂; Labuhan Batu ; 2°10′42.9″ N, 99°57′25.3″ E; 6 Oct. 2020; K.S. Zebua leg.; iNaturalist.org/observations/61849044 GoogleMaps   1 ♂; Labuhan Batu ; 2°08′7.3″ N, 99°52′59.2″ E; 6 Oct. 2020; K.S. Zebua leg.; iNaturalist.org/observations/61849074 GoogleMaps   1 ♂; Kong Paluh, Kutapanjang, Gayo Lues Regency , Aceh; 3°48′16.0″ N, 97°14′6.9″ E; 20 Jul. 2018; G. Jarasunas leg.; iNaturalist.org/observations/20738568 GoogleMaps   1 ♀; Kerinci , Jambi; 2°14′54.4″ S, 101°32′21.3″ E; 12 Aug. 2018; pmaaskant leg.; iNaturalist.org/observations/37307112 GoogleMaps   1 ♂; “Ланкат, СевернаЯ Суматра, ИндонеЗИЯ” [Langkat, North Sumatra, Indonesia ]; 3°33′6.3″ N, 98°6′37.2″ E; 3 May 2019; reflectitur_photons leg.; iNaturalist.org/observations/25730568 GoogleMaps   1 ♀; Lima Puluh Koto , ID-SB, ID; 0°6′39.0″ S, 100°40′15.2″ E; 6 Jun. 2011; D. Nys and M. Vancauwenbergh leg.; iNaturalist.org/observations/34083286 GoogleMaps   1 ♀; Lubuk Landua ; 0°6′19.5″ N, 99°53′12.3″ E; 13 Mar. 2018; O. Johnson leg.; iNaturalist.org/observations/11018930 GoogleMaps   1 ♂; Gayo Lues Regency , Aceh; 3°52′51.7″ N, 97°19′23.1″ E; 21 May 2010; ninjawil leg.; iNaturalist.org/observations/9181395 GoogleMaps   .

MALAYSIA • 4 ♀♀; “Camp Jor”, border between Perak and Pahang; 4°9′43″ N, 102°22′20″ E; 30 Dec. 1902; Alb. Grubauer leg.; ZMH GoogleMaps   .

Redescription

Slightly smaller than other species ( Fig. 7D View Fig ). Vivid yellow, brown and black when alive ( Fig. 22A–C View Fig ). Vertex variable: ranging from black with yellow margins around eyes (mostly in individuals from Sumatra) to cream-coloured with a strong longitudinal black band and one or two faint transverse black bands (forming a T- or cross-shaped black pattern; mostly in individuals from Siberut Islands and Malaysia) ( Fig. 11E View Fig ); dark pattern variable between individuals, some have a narrow pattern appearing more like a longitudinal band. Scapes red brown to black. Antennae red brown (individuals from Siberut) to black (individuals from Sumatra), with wide whitish rings. Frons yellow, cream-coloured to yellow, face part of fastigium brown to dark brown or black between eyes, lighter for individuals from Siberut than from Sumatra ( Fig. 10E View Fig ). Mouthparts dark brown to black in specimens from Sumatra, lighter or sometimes yellow in specimens from Siberut ( Fig. 10E View Fig ). Maxillary palpi cream-coloured; apical segment black apically ( Fig. 10E View Fig ). Head lateral side yellow to cream-coloured, including gena, with a black band posterior to eyes ( Fig. 12E View Fig ). Pronotum dorsal disk black, covered with white setae, rectangular with lateral margin barely widening posteriorly, posterior margin substraight to faintly bisinuous ( Fig. 11E View Fig ). Lateral lobes of pronotum dorsal half black, vivid yellow ventrally (cream-coloured in preserved specimens) ( Fig. 12E View Fig ). Legs generally light grey brown, sometimes with some small dark spots. FIIIs brown, with a brown longitudinal stripe along ventral half (more distinct and darker in individuals from Sumatra); sometimes dorsal margin with a paler longitudinal stripe; knees dark brown to black. TIIIs brown with black spines and spurs, dark brown to black near distal end; tarsomeres dark brown to black. Hindwings hyaline brown apically; longer than FWs and surpassing cerci, forming a black tail with yellow veins exceeding FWs for less than twice the length of the pronotum. Tergites red brown, with a pale band laterally; sternites pale, sometimes with a dark brown median area. Subgenital plate with a dark median area.

Male

FOREWINGS. FW colouration ( Fig. 13D View Fig ): dorsal field narrow, cells mostly transparent, veins varying from pale yellow to black. Basal area either infumated brown to black (individuals from Sumatra) or almost transparent (individuals from Siberut), but always with a cream-coloured triangular patch (sometimes more rounded). Chords most often with a white patch, most readily observed in individuals from Sumatra. R black, Sc projections black basally, cream-coloured or transparent apically. Lateral field transparent. FW venation ( Fig. 13D View Fig ): 1A curved, slightly angulated. Harp very small, slightly longer than wide, with one distinct straight oblique vein. c1 long and wide, broader basally; c2 diamond-shaped; mirror (d1) small, longer than wide, not rounded, generally separated into two parts by a transverse vein, the anterior part triangular, about as long as posterior part, posterior part rectangular. Cell d2 about as wide as d1, usually subdivided by accessory veins. Apical field short, including one cell alignment posterior to mirror and a narrow apical alignment; its veins cream-coloured. Lateral field transparent, with 5 or 6 projections of Sc. Epiproct black. Subgenital plate with a dark median area. Cerci red brown.

GENITALIA ( Fig. 16D View Fig ). Pseudepiphallus sclerotized, stout (medium-sized but broad) compared to congeners, anterior margin somewhat broad and straight, posterior margin also straight, lateral margins faintly converging posteriorly. Posterior apex with paired lophi slightly longer than wide (at base), obtuse at apex, moderately spaced apart from one another. Rami swollen preapically, anterior apex somewhat truncated. Pseudepiphallic parameres narrow. Ectophallic fold rounded lateral sclerites appearing beanshaped to rectangular. Endophallic sclerite wide and rounded laterally, with relatively long lateral arms.

Female

FOREWINGS. FW colouration ( Fig. 14E View Fig ): base of dorsal field with a yellow area; cells black, veins mostly vivid yellow (cream-coloured in preserved specimens). Region of CuA, M and R black, including the

veins. Sc projections yellow basally, black apically. Lateral field transparent. FW venation: 6–7 strong longitudinal veins on dorsal field; lateral field with 6 projections of Sc.

GENITALIA. Ovipositor slightly longer than FIII. Copulatory papilla conical, smaller and stout; apex folded ventrally, stout, broader than congeners, pointed; dorsal face with a sclerotized area, forming a somewhat triangular rim ( Fig. 17H–I View Fig ).

Juvenile ( Fig. 22D–E View Fig )

Young instar with head nearly completely cream-coloured. Pronotum disk velvety black, lateral lobe with dorsal half velvety black and ventral half cream-coloured. Legs generally cream-coloured with small dark spots; tarsi darker. Abdomen with tergites velvety black dorsally, with sternites cream-coloured ventrally. Epiproct cream-coloured. Later instar resembles adult colouration.

Measurements

See Table 7 View Table 7 .

Ecology

Habitat and mating behaviour, including multiple mating, male guarding behaviour, female eating spermatophores and male-male competition for females, were described in detail by Preston-Mahfam (2000).

Distribution

Sumatra, Malay Peninsula ( Malaysia).

Type locality

Indonesia: Sumatra.

Calling song

Unknown.

Remarks

One syntype of Saussure from Northern Sumatra found in NMW is designated here as the lectotype of the species. Based on comparisons with the type of N. sumatrensis   , the latter name is considered as a junior synonym of N. insignis   (new synonymy, see below).

The observed specimen series vary greatly in size and colouration, which made us hesitate between defining one or more species, in particular for the lighter specimens from the Mentawai Islands. To remain conservative, we considered these differences as species variation only, but more information about molecular divergence and acoustic parameters may lead to revise this decision in future studies.

Table 7. Measurements of Nisitrus insignis Saussure, 1878 (in mm, means in brackets).

  PronL PronW FWL FWW HWT FIIIL FIIIW TIIIL
Males (n = 5) 1.7–2.4 (2.0) 2.5–3.2 (2.8) 7.3–9.5 (8.7) 2.5–2.9 (2.8) 3.4–4.6 (3.8) 13.9–16.3 (15) 2.3–2.9 (2.6) 14.3–19.4 (15.8)
Females (n = 5) 2.1–2.5 (2.2) 2.9–3.5 (3.1) 10.2–11.4 (10.7) 3.0–3.7 (3.3) 3.7–4.6 (4.2) 16.3–17.6 (17.0) 2.7–3.2 (3.0) 15.6–18.2 (16.9)
NMW

Austria, Wien, Naturhistorisches Museum Wien

AMNH

USA, New York, New York, American Museum of Natural History

MNHN

France, Paris, Museum National d'Histoire Naturelle

ZRC

Singapore, National University of Singapore, Raffles Museum of Biodiversity Research, Zoological Reference Collection

ZIN

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

SMTD

Germany, Dresden, Museum fuer Tierkunde

RMNH

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

GNME

Sweden, Goeteborg, Naturhistoriska Museet

ZMH

USA, Illinois, Chicago, Field Museum of Natural History (also used by Finnish Museum of Natural History)

NHMW

Austria, Wien, Naturhistorisches Museum Wien

NMW

Naturhistorisches Museum, Wien

AMNH

American Museum of Natural History

MNHN

Museum National d'Histoire Naturelle

ZRC

Zoological Reference Collection, National University of Singapore

ZIN

Russian Academy of Sciences, Zoological Institute, Zoological Museum

RMNH

National Museum of Natural History, Naturalis

NHMUK

Natural History Museum, London

ZMH

Zoologisches Museum Hamburg

RBINS

Royal Belgian Institute of Natural Sciences

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Orthoptera

Family

Gryllidae

Genus

Nisitrus

Loc

Nisitrus insignis Saussure, 1878

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

Nisitrus sumatrensis

Robillard R. & Desutter-Grandcolas L. 2004: 276
2004
Loc

Nisitrus insignis

Vicente N. & Kergoat G. J. & Dong J. & Yotoko K. & Legendre F. & Nattier R. & Robillard T. 2017: 2203
Hollier J. & Bruckner H. & Heads S. W. 2013: 487
Chopard L. 1968: 352
1968
Loc

Nisitrus hyalinus

Robillard R. & Desutter-Grandcolas L. 2004: 276
Chopard L. 1929: 110
1929
Loc

Crystallomorpha sumatrensis

Rehn J. A. G. 1909: 209
1909
Loc

Nisitra insignis

Chopard L. 1968: 352
Kirby W. F. 1906: 87
1906
Loc

Nisitrus insignis

Saussure H. 1878: 515
1878