Cardiodactylus guttulus (Matsumura, 1913)

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 : 42-45

Cardiodactylus guttulus (Matsumura, 1913)

( Figs 25–26 )

Gryllodes gutulus Matsumura, 1913: 36 .

Gryllopsis guttula — Chopard 1967: 33; Otte 1994: 11; Eades et al. 2008 ( Orthoptera Species File Online).

Cardiodactylus novaeguineae — Shiraki 1930: 233; Oshiro et al. 1981: 25; Oshiro 1995: 43; Warati et al. 2008: 12.

Cardiodactylus guttulus — Ichikawa 1999: 105; Ito & Ichikawa 2003: 60; Ichikawa et al. 2006: 468; Warati et al. 2008: 15. Robillard & Ichikawa 2009: 887 (redescription); Nattier et al. 2011: 2201 (molecular phylogeny); Eades et al. 2013 ( Orthoptera Species File Online).

Synonym names

Cardiodactylus boharti Otte, 2007a: 349 ; 2007b: 30. Robillard & Ichikawa 2009: 887 (synonym name of C. guttulus ); Eades et al. 2013 ( Orthoptera Species File Online).

Cardiodactylus hainanensis Ma & Zhang, 2010: 299 . New synonymy. Examination of new material from Vietnam and Japan revealed that there is a continuous variation in the characters of coloration used to describe the species C. hainanensis from Hainan Island ( China) ( Fig. 26 ), which do not differ in male genitalia.

Type material. Female holotype: Japan. Okinawa, Riukiu [Ryukyu] (K. Kuroiwa) (Hokaido University). Not examined .

Type locality. Okinawa, Ryukyu Islands .

New signalizations. Japan, Ryukyu, Okinawa Pref., Ishigaki I., 14–15.X.1999, S. Belokobylsky, 4♂, 5♀ ( ZIN) ; Iriomote I., 16–17.X. 1999, S. Belokobylsky, 1♂, 1♀ ( ZIN) ; Okinawa-jima, Kunigami-cha, Yona , 14.VIII.1991, A. Lelej, 1♂ ( ZIN) ; Amami I., 11.IX.2000, A. Bugrov ( ZIN), 1♂, 1♀ ( ZIN) ; Amami-Oshima, Komia near Sumno , 17.XII.1926, P. Schmidt, 1♂ ( ZIN) . Vietnam (northern). Quang Tri Province, Huong Hoa Distr., Huong Lap Communa , XI.2007, N. Orlov, 1♂ ( ZIN) . Quang Binh Province, Ba Ty Long Archipelago, Thanh Lan I., 18.X.1990, V. Kuznetsov, 1♀ ( ZIN) . Vietnam (southern half). Gia Lai Province, 20 km N of Kannack Town, environs of Buon Luoi Vill. , 24–30.IV.1995, A. Gorochov, 1♂ ( ZIN) ; same information, 3–11.XI.1993 and 22.III-10.V.1995, A. Gorochov, 2♂, 2♀ ( ZIN) ; same province, environs of Kannack Town , 8–16.XI.1988, A. Gorochov, 1♀ ( ZIN) .

Distribution. Japan (Ryukuy Islands), coastal part of Vietnam (north to south), Hainan Island ( China), Taiwan.

Diagnosis and redescription. See Robillard and Ichikawa (2009).

Variation. Specimens from southern Vietnam tend to vary in female coloration (median anterior witish spot on FWs nearly absent, Fig. 25A ), and one male has very angular peudepiphallic dorsal ridges in lateral view ( Fig. 25B ). Such characteristics could be seen as sufficient to diagnose a new species or subspecies if they were stable within the sampled locality, which is not the case .

Figures

FIGURE 25. Cardiodactylus guttulus (Matsumura, 1913): variation observed in male genitalia along geographical distribution. (A) specimen from Southern Vietnam (angular dorsal ridges in lateral views); (B) specimen from Northern Vietnam (very similar to specimens from Japan and Taiwan). From left to right, male genitalia in lateral, ventral and dorsal views.

FIGURE 26. Cardiodactylus guttulus (Matsumura, 1913): male (A) and female (B) specimens from Hainan Island, by night. Photographs by courtesy of Dr. He Zhuqing.