Nisitrus brunnerianus 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 : 25-28

publication ID	https://doi.org/ 10.5852/ejt.2021.761.1449
publication LSID	lsid:zoobank.org:pub:519E2F56-40E1-4431-BC90-8484E308D16E
DOI	https://doi.org/10.5281/zenodo.5169992
persistent identifier	https://treatment.plazi.org/id/039487A4-FFF4-FFE7-FDD6-F13DFEECF9EF
treatment provided by	Felipe
scientific name	Nisitrus brunnerianus Saussure, 1878
status

Treatment

Nisitrus brunnerianus Saussure, 1878 View in CoL View at ENA

Figs 5 View Fig , 7A View Fig , 8A–B View Fig , 10A View Fig , 11A View Fig , 12A View Fig , 13A View Fig , 14A View Fig , 15B View Fig , 16A View Fig , 17A–B View Fig , 18; Tables 1–3 View Table 1 View Table 2 View Table 3

Nisitrus brunnerianus Saussure, 1878: 516 View in CoL .

Nisitra brunnerianus View in CoL – Kirby 1906: 87.

Nisitrus brunnerianus View in CoL – Chopard 1968: 353. — Cigliano et al. 2020 ( Orthoptera View in CoL Species File online). Nisitrus aff. brunnerianus View in CoL – Vicente 2017: 2203 (phylogeny, historical biogeography).

non Nisitrus brunnerianus View in CoL – Robillard & Desutter-Grandcolas 2004a: 276 (morphological phylogeny).

Diagnosis

This species differs from all known congeners by the following characters: head nearly completely black (sometimes with yellow patch beneath scapes and eyes). Pronotum lateral lobe either black with small brown spot on postero-ventral corner, or black in dorsal half and yellow in ventral half. Male FW with basal area brown with tint of black, otherwise mostly hyaline; veins mostly yellow. Female FW with dorsal field mostly infumated black, with veins dark brown and lighten towards lateral field and apical areas. Legs red brown; FIII black dorso-basally without bands or stripes on external surface; with a distinct black ring before hind knee; hind knee black.Abdomen with tergites black, sternites mostly black. This species is similar to N. crucius sp. nov. and N. rindu sp. nov. but differs by the combination of these characters: frons nearly completely black (without black cross marking as in N. crucius sp. nov.), dorsum of head completely black (vs with yellow margins in N. crucius sp. nov. or pale with dark patterns in N. rindu sp. nov.) and lateral lobe either with ventral half yellow or with an oval yellow spot at the anterior end (vs with a characteristic dorsal yellow band that extends ventrally in N. rindu sp. nov.).

Material examined

Lectotype (here designated)

NO COUNTRY • ♀; “Boncard ded.”; Brunner von Wattenwyl leg.; NMW.

Paralectotype (here designated)

NO COUNTRY • 1 ♀; same collection data as for lectotype; NMW .

Additional specimens

INDONESIA – Kalimantan • 1 ♀; [East Kalimantan] “West Borneo, Marah”, [near border of Koetai and Beraoe]; 1°42′28″ N, 116°15′40″ E; 10 Aug. 1925; H.C. Siebers leg.; MNHN GoogleMaps • 1 ♂; [East Kalimantan] “ West Borneo, Marah ”; 0°58′31″ N, 116°33′14.8″ E; 10–28 Nov. 1925; H.C. Siebers leg.; MNHN-EO- ENSIF1734 GoogleMaps • 7 ♀♀; same collection data as for preceding; MNHN GoogleMaps • 2 ♀♀; “West Borneo, Midden”, [near border of Koetai and Beraoe]; 1°47′35″ N, 116°12′22″ E; 12 Sep. 1925; H.C. Siebers leg.; MNHN GoogleMaps • 1 ♂; “West Borneo, Midden”, [near border of Koetai and Beraoe]; 1°50′14″ N, 116°12′34″ E; 26 Sep. 1925; H.C. Siebers leg.; MNHN-EO-ENSIF1726 GoogleMaps • 1 ♂; “West Borneo, Midden”, [near Beraoe?]; 1°58′53″ N, 116°7′56″ E; 1 Oct. 1925; H.C. Siebers leg.; MNHN-ENSIF1752 GoogleMaps • 1 ♂; same collection data as for preceding; MNHN GoogleMaps • 1 ♂; “West Borneo, Midden”, [near border of Koetai and Beraoe]; 1°54′44″ N, 116°11′27″ E; 6 Nov. 1925; H.C. Siebers leg.; MNHN-ENSIF1715 View Materials GoogleMaps • 2 ♀♀; same collection data as for preceding; MNHN GoogleMaps • 1 ♀; [ Melawi Regency ] “West Borneo, Melawi”; 0°35′43″ S, 0°0′46″ E; Nov.– Dec. 1924; Blanchemanche leg.; MNHN GoogleMaps • 1 ♀; “ West Borneo ”; 1924; Blanchemanche leg.; MNHN • 1 ♀; “ Lebang Hara ”; 25 Nov.–5 Dec. 1924; H. Winkler leg.; ZMH • 1 ♀; “ Samarinda ”; 0°29′47″ S, 117°8′23″ E; M.-E. Walsh leg.; ZMLU GoogleMaps • 1 ♀; Kayan Basin, Bahau ; 2°55′23.2″ N, 117°33′13.1″ E; 13 Nov. 1999; H.H. Tan and D. Wowor leg.; ZRC GoogleMaps • 1 ♂; same collection data as for preceding; ZRC GoogleMaps • 1 ♀; “O. Borneo Pelawan ”; May 1937; M.-E. Walsh leg.; ZMLU • 4 ♀♀; Penda Siroen, Soengai Maroewai [Sungai Maruwai]; 0°34′1.9″ S, 114°44′0.5″ E; 13 May 1932; Prince Leopold leg.; RBINS GoogleMaps • 1 ♀; same collection data as for preceding; RBINS GoogleMaps • 1 ♀; Kumai, West Kotawaringin Regency , Central Kalimantan; 2°55′17.9″ S, 111°54′16.4″ E; 24 Jun. 2014; G. Cahyadi leg.; iNaturalist.org/observations/41219515 GoogleMaps . – Java • 2 ♂♂; “ Bibidjilan Djampang , Tengah VI.”; 7°20′8.2″ S, 107°38′21.2″ E; M.-E. Walsh leg.; ZMLU GoogleMaps .

MALAYSIA – Sarawak • 1 ♀; Balleh River, Kapit jungle ; 1°45′14.51″ N, 113°45′59.00″ E; 15Apr. 1979; PII: N53; MNHN-EO-ENSIF11260 GoogleMaps • 2 ♀♀; Balleh River, Kapit jungle ; 1°45′14.51″ N, 113°45′59.00″ E; 15 Apr. 1979; MNHN GoogleMaps • 1 ♀; 10 miles south of Kuching; 1°15′12.94″ N, 110°19′36.71″ E; 14 Jun. 1910; Beebe leg.; MZB GoogleMaps • 1 juvenile; “ Gunung Mulu NP, Camp 4, Summit Trail ”; 4°2′40.6″ N, 114°54′50.8″ E; 5950 ft a.s.l.; 19 Jan. 2009; G.J. Svenson leg.; MNHN GoogleMaps • 1 ♀; Sarawak ; 1909; C.J. Brooks leg.; NHMUK 012497567 View Materials • 1 ♀; [ Semongoh ] “ Semongok, on oil palm ”; 1°23′51″ N, 110°18′43″ E; 19 Dec. 1966; “Salin Iuses” leg.; NHMUK 012497569 View Materials GoogleMaps .

NO COUNTRY • 1 ♀; “Borneo”; [19]32; “Weir” leg.; AMS-K393086 • 1 ♀; “Borneo”; 1891; Chopard leg.; MNHN • 1 ♀; “Federal Malay States”; 1909; C.J. Brooks leg.; NHMUK 012497568.

Redescription

Relatively large and slender ( Figs 7A View Fig , 18 View Fig ). Vertex completely black ( Fig. 11A View Fig ). Fastigium velvety black, with anterior margins yellow. Scapes black, posterior end red brown. Antennae red brown with some segments black and with wide whitish rings. Eyes dark green when alive and red brown when dried. Frons generally black, sometimes with yellow to cream-coloured bands above and beneath antennal cavity and along ventral margins of eyes ( Fig. 10A View Fig ). Mouthparts dark red brown to black. Maxillary palpi creamcoloured; apical segment black apically ( Fig. 10A View Fig ). Head lateral side black ( Fig. 12A View Fig ). Pronotum generally black, covered with white setae; dorsal disk trapezoidal, posterior margin bisinuated ( Fig. 11A View Fig ). Lateral lobes of pronotum with two variants: (1) in lectotype, completely black except for a cream-coloured oblong spot near anterior margin ( Fig. 12A View Fig ); (2) dorsal third black, otherwise completely yellow. Legs red brown. FIIIs dark red brown, sometimes with a dorsal black 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, with a rounded transparent window near internal-basal area; longer than FWs, the dark brown tail exceeding FWs more than twice as long as pronotum. Tergites black, in some segments with cream-coloured transverse stripe at anterior end and/or with pale band laterally; sternites pale, their median area red brown. Cerci cream-coloured, short and conical.

Male

FOREWINGS. FW colouration ( Fig. 13A View Fig ): dorsal field cells mostly transparent to pale yellow, veins mostly dark brown to black. Basal area brown with tint of black. R brown, Sc projections brown basally, transparent apically. Lateral field yellow brown, apex more transparent. FW venation ( Fig. 13A View Fig ): 1A somewhat straight. Harp slightly longer than wide, with 3 oblique veins, posterior-most vein bifurcated at base. c1 long and wide, c2 diamond-shaped; mirror (d1) longer than wide, not rounded, generally separated into two parts by a distinct, roundly bent transverse vein, the posterior part hexagonal, shorter than anterior part. Cell d2 narrower than d1. Apical field short and rounded, with 2 wide cell alignments posterior to mirror and a narrow apical alignment; veins yellow. Lateral field with 5–6 projections of Sc. Epiproct black. Subgenital plate pale cream, its median area and anterior and posterior margins black.

GENITALIA ( Fig. 16A View Fig ). Pseudepiphallus sclerotized, relatively large and broad compared to congeners, anterior margin somewhat broad and straight, posterior margin also straight, lateral margins faintly converging posteriorly. Posterior apex with paired lophi longer than wide (at base), subacute at apex, sclerotized laterally only and covered with strong short setae; spaced apart from one another. Rami swollen preapically, anterior apex somewhat truncated. Pseudepiphallic parameres narrow, divergent posteriorly, their basis membranous, with a sclerotized lobe on anterior apex. Ectophallic arc transverse, complete, with anterior and posterior margins straight. Ectophallic fold strong rounded lateral sclerites appearing bean-shaped. Ectophallic apodemes long and thin, straight and slightly divergent basally. Endophallic sclerite large and sclerotized, its posterior apex with divergent lateral arms and with a short median expansion curved dorsally. Endophallic apodeme with lateral lamellae stout.

Female

FOREWINGS. FW colouration ( Fig. 14A View Fig ): cells on dorsal field mostly infumated black, gradually becoming yellow near CuA, M and R veins; veins generally black or dark brown, also gradually becoming yellow towards CuA, M and R veins; veins near apical area also yellow. Sc projections cream-coloured basally, black apically. Lateral field dark. FW venation: 6–7 strong longitudinal veins on dorsal field, sometimes not smooth; lateral field with 6 projections of Sc.

GENITALIA. Ovipositor: on average longer than FIII; apex thin with both dorsal and ventral edges smooth. Copulatory papilla conical, slender, more elongated than congeners; apex folded ventrally, long and slender, pointed; dorsal face with a sclerotized area; ventro-anterior end forming a somewhat triangular rim ( Fig. 17A–B View Fig ).

Juvenile

Unknown.

Measurements

See Table 3 View Table 3 .

Ecology

Unknown.

Distribution

Borneo (Kalimantan, Sarawak), West Java.

Calling song

Unknown.

References

Figures

Tables

Table 3. Measurements of Nisitrus brunnerianus Saussure, 1878 (in mm, means in brackets).

	PronL	PronW	FWL	FWW	HWT	FIIIL	FIIIW	TIIIL
Males (n = 4)	2.1–2.3 (2.2)	3.6–3.8 (3.7)	10.8–11.7 (11.2)	4.1–4.8 (4.4)	5.1–8.3 (6.8)	13.8–14.7 (14.3)	2.0–2.6 (2.4)	14.3–15.3 (14.8)
Females (n = 5)	1.9–2.6 (2.2)	3.3–3.8 (3.5)	11.8–14.6 (13)	3.7–4.1 (3.9)	7.1–8.4 (7.7)	13.8–17.5 (15.9)	2.6–3.2 (2.8)	12.3–18.7 (15.4)

Abbreviations

NMW	Austria, Wien, Naturhistorisches Museum Wien
ZMH	USA, Illinois, Chicago, Field Museum of Natural History (also used by Finnish Museum of Natural History)
ZRC	Singapore, National University of Singapore, Raffles Museum of Biodiversity Research, Zoological Reference Collection
NMW	Naturhistorisches Museum, Wien
MNHN	Museum National d'Histoire Naturelle
ZMH	Zoologisches Museum Hamburg
ZMLU	Lunds Universitet, Zoologiska Institutionen
ZRC	Zoological Reference Collection, National University of Singapore
RBINS	Royal Belgian Institute of Natural Sciences
MZB	Museum Zoologicum Bogoriense

Copyright notice

No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.

Taxonomy

Kingdom	Animalia
Phylum	Arthropoda
Class	Insecta
Order	Orthoptera
Family	Gryllidae
Genus	Nisitrus