Cardiodactylus borneoe Robillard & Gorochov, 2014

Robillard, Tony, Gorochov, Andrej V., Poulain, Simon & Suhardjono, Yayuk R., 2014, Revision of the cricket genus Cardiodactylus (Orthoptera, Eneopterinae, Lebinthini): the species from both sides of the Wallace line, with description of 25 new species, Zootaxa 3854 (1), pp. 1-104 : 12-14

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Cardiodactylus borneoe Robillard & Gorochov

n. sp.

Cardiodactylus borneoe Robillard & Gorochov   , n. sp.

( Figs 4 View FIGURE 4 , 5A View FIGURE 5 , 7 View FIGURE 7 , 8 View FIGURE 8 , 9A View FIGURE 9 , 11A View FIGURE 11 , 13A View FIGURE 13 , 14A View FIGURE 14 )

Type material. Male holotype: Indonesia. Central Kalimantan Province, Midden O. Borneo Exp. Marah [river], 10–28.XI.1925, #208[?], H. C. Siebers (MNHN-EO-ENSIF3497). Female allotype: same information as HT, #200 (MNHN-EO-ENSIF3498).   Paratypes (12♂, 12♀): 2♂, same information as HT, #204, #208 (MNHN-EO-ENSIF3499-3500). Midden O. Borneo Exp. , no precision, H. C. Siebers: 1♂, 17.XI.1925   , #200 (MNHN-EO-ENSIF3502); 1♂, 22.IX.1925, #117 (MNHN-EO-ENSIF3503); 1♂, 29.IX.1925, #135 (MNHN-EO-ENSIF3501); 1♂, 23.XI.1925, #206 (MNHN-EO-ENSIF3504); 1♀, 10.XI.1925, #105 (MNHN-EO-ENSIF3505); 1♂, 23.IX.1925, #121; 1♀, 22.XI.1925, #205 ( ZIN). Midden O. Borneo Exp., Long Petak, 450 m, 1♀, IX.1925, H. C. Siebers (MNHN-EO-ENSIF3506). East Kalimantan Province, Kec. Pujungan, Kayan-Mentarang Nat. Reserve , IIS 930549, lowland diptero forest, WWF station, Lalut Birai, base camp, Kebun, 355 m, 2°52’N 115°49’E, X.1993 GoogleMaps   , malaise trap head, DC. D. Rosichon U.: 1♂ (MZB-ORTH12194); 1♀ (MZB-ORTH12238). Bukit Soeharto Expt. For. 60 km S. Samarinda IIS 930613, 60 m, 0°42’S 117°0’E, lowland dipterocarp forest, primary rainforest, malaise trap head, XII.1993 GoogleMaps   , DC. D. Rosichon U.: 1♀ (MZB-ORTH12195). Malaysia. South East Sabah, nr. Danum Valley Field C., c. 150 m, W0, mal. trap 5, C. v. Achterberg & D. Kennedy: 26.V–20.VI.1987   , 1♀; 20.VI–12.VII.1987, 1♂; 2–23.VIII.1987, 1♀; 26.X–22.XI.1987, 1♂, 1♀; 5.XII.1987 - 20-I.1988, 1♂; 22.XI-4.XII.1987, 1♀ ( RMNH). nr. Danum Valley Field C., c. 150 m, W0, mal. trap 11, C. v. Achterberg: 14–20.III.1987   , 1♀ ( RMNH). North Sabah, Mangalum Island , 35 m, NW Jesselton, 8–15.VII.1928   , 1♂, identified Cardiodactylus novaeguineae Haan   by L. Chopard, C. Boden Kloss (MNHN-EO-ENSIF3507). Borneo , no precise locality, 1891   , 2♀ (#1269, -), Chaper (MNHN-EO-ENSIF3508-3509). Malaysia (Borneo), Sabah, Crocker Range, 80 km S of Kota-Kinabalu City, environs of Ulu Kumanis Vill. , 800 m, 5–10.V.2009   , A. Sotshivko, 1♂ ( ZIN); Crocker Range National Park not far from Keningau Town , 1000–1300 m, secondary-primary forest, 2–6.V.2013   , A. Gorochov, M. Berezin, V. Gorochova, E. Tkatsheva, 1♀ ( ZIN); ~ 5 km NWW of Kota-Kinabalu City, Manukan I., sea level, secondary forest, 24–25.IV.2013   , A. Gorochov, M. Berezin, V. Gorochova, E. Tkatsheva, 1♂, 1♀ ( ZIN); Sandakan Division, environs of Sukau Vill. on Kinabatangan River (~ 35 km from its mouth), ~sea level, secondary-primary forest, 8–13.V.2013   , A. Gorochov, M. Berezin, E. Tkatsheva, 2♂ ( ZIN)   .

Type locality. Indonesia, Borneo, Central Kalimantan, Marah [river]   .

Other material examined. Malaysia. Pahang, Tioman I. not far from Mersing City in Johor State (Malacca Peninsula ), environs of Juara Vill. on eastern coast of island, disturbed primary forest, on leaf of bush, at night, 6–14.IV.2010, A. Gorochov, M. Berezin, E. Tkatsheva, 3♂ ( ZIN).   Borneo, no presicion, C. Pictet, 1♀, identified Cardiodactylus novae-guineae (MHNG)     .

Etymology. Named after the type locality.

Distribution. Eastern, northern and central Borneo; Tioman Island.

Diagnosis. Species of average size, general coloration brown and yellow brown, little contrasted, characterized by male FW venation with mirror separated in 2 sub-equal parts, and by shape of pseudepiphallic sclerite in male genitalia. Species very close to C. thailandia   and C. admirabilis   by shape of male genitalia (asymmetrical dorsal ridges of pseudepiphallus) and male FW venation, but differing by smaller size and coloration less contrasted (brown and yellow in C. borneoe   , black and yellow in C. thailandia   ; diagonal vein including a black area in C. thailandia   , absent in C. borneoe   ).

Description. Average size for the species group. General coloration brown, little contrasted ( Fig. 7A–D View FIGURE 7 ). Head dorsum yellow brown with 4 wide dark brown bands; lateral bands complete except for a separate spot anteriorly; median bands punctuated; 2 short dark brown lines posterior to eyes ( Fig. 5A View FIGURE 5 ). Fastigium black or dark brown. Scapes yellow brown with a dark brown ring; antennae brown with yellow brown rings. Face variable, most often yellow brown with a yellow transverse band below eyes, 2 parallel stripes on front head and 2 small black dots bellow antennae. Mouthparts mostly yellow brown. Lateral sides of head brown. Maxillary palpi yellow brown, apex dark brown. Pronotum: Dorsal disk lateral margins yellow to whitish, with dark spots; median area yellow brown, with brown and black symmetrical patterns; posterior margin dark brown. Lateral lobes dark brown to black, ventral margins yellow. Legs I–II yellow brown, with dark brown spots on femora and rings on tibiae; tarsomeres I–III yellow brown, their ends dark brown. FIII yellow brown mottled with brown, knees black; TIII with yellow brown and dark brown rings. Hind wing tail black, 1.5 times longer than pronotum. Cerci yellow brown with dark brown spots basally and dark brown rings apically. Posterior tergites dark brown with lateral discontinuous yellow lines; posterior sternites yellow brown.

Male: FW coloration mostly dark brown, some areas with yellowish or whitish venation ( Fig. 9A View FIGURE 9 ). Orange brown sclerotized area anterior to chords. Cell e1 dark brown. Yellow areas include all veins anterior to harp, i.e. bases of anal veins, harp veins and anterior half of the diagonal vein; large oval area posterior to mirror with translucent cells. M/R/Sc area orange brown to dark brown; posterior part of Sc whitish; projections of Sc and ventral veins whitish, cells between them dark brown. FW venation ( Fig. 9A View FIGURE 9 ): 1A slightly bisinuated. CuP missing. Diagonal vein homogeneously yellow brown (with a black median area in C. thailandia   ). Stridulatory file with 200–250 teeth on the transverse and longitudinal parts of 1A, without discontinuity at the level of the angle, and ca. 30 more teeth on a bump near 1A base (see Table 1 View TABLE 1 , n = 3). Harp with a strong w-shaped vein and a faint anterior one. Mirror area: mirror (d1) longer than wide, oval, separated in two sub-equal parts by a transverse vein; d2 wide, prolonging mirror shape; e1 variable, crossed by several accessory veins in HT. Apical field with 3–5 cell alignments posterior to mirror. Lateral field with 7–9 (m = 7.8, n = 5) projections of Sc and 4–5 (m = 4.6, n = 5) ventral veins. Subgenital plate yellow brown.

Male genitalia ( Fig. 7E–G View FIGURE 7 ): Pseudepiphallus elongate, clearly narrowed twice, at mid-length and preapically. Dorsal ridges divergent posteriorly, their dorsal edges bean-like, slightly asymmetrical, the left one curved, the right one straight; pseudepiphallus bisinuated laterally. Pseudepiphallic sclerite with wide latero-anterior expansions pointed at apex, membrane between them with thin setae. Posterior region rounded, narrower than preapical part, apex with a small translucent area longer than wide. Rami with large preapical plates, indented on dorsal margin; apex slightly convergent. Ectophallic arc complete, wide and curved, with a short posterior expansion. Ectophallic apodemes as long as the rami, straight and parallel, their bases with a posterior membranous lobe and a long anterior sclerotization along the membrane. Ectophallic fold membranous, with weak lateral sclerites; apex trilobate, membranous, median lobe oval. Endophallic sclerite little sclerotized except lateral arms; with a wide posterior expansion. Endophallic apodeme with wide lateral lamellas and a strong medio-dorsal crest. Membrane of endophallic cavity smooth.

Female: FW coloration ( Fig. 11A View FIGURE 11 ): mostly dark brown, veins light brown in anterior region, bases of anal veins whitish to yellow brown; dark brown area near base of CuA, CuP and 1A. Anterior half of CuA/M area whitish, including transverse veins and associated sclerotization; posteror part dark brown. R/Sc area orange brown including veins. Projections of Sc and more ventral veins yellow brown, the cells between them dark brown. FW venation: 10 (n = 5) strong longitudinal veins on dorsal field; lateral field with 8–11 (n = 5) longitudinal veins including 4–7 Sc projections and 4–5 ventral veins. Ovipositor: slightly shorter than FIII; apex with both dorsal (slightly) and ventral edges denticulate ( Fig. 13A View FIGURE 13 ).

Female genitalia ( Fig. 14A View FIGURE 14 ): Copulatory papilla trapezoidal with baso-lateral sclerites; apex rounded, slightly sclerotized and folded ventrally.

Juvenile: Unknown.

Variation: The species shows an important array of variation in details of coloration (specimens more or less dark or light) and in male genitalia: the length of the posterior part of the pseudepiphallus is slightly variable; in profile view, the dorsal edge of the pseudepiphallic ridges are variably indented, rounded or flat ( Fig. 8 View FIGURE 8 ). In particular, males from Tioman Island show a little indented genitalic profile with a flat dorsal edge ( Fig. 8C View FIGURE 8 ). Further studies including acoustic and molecular analyses will be necessary to test whether some of these populations may constitute separate species.

Measurements. See Table 1 View TABLE 1 .

Habitat and life history traits. Unknown.

Behavior. Unknown.


Russian Academy of Sciences, Zoological Institute, Zoological Museum


National Museum of Natural History, Naturalis