Cardiodactylus pentecotensis, Robillard, 2009

Robillard, Tony, 2009, Eneopterinae crickets (Insecta, Orthoptera, Grylloidea) from Vanuatu, Zoosystema 31 (3), pp. 577-618 : 584-587

Cardiodactylus pentecotensis n. sp. ( Figs 4D, E ; 6C ; 7 D-F)

Cardiodactylus sp. – Robillard & Desutter-Grandcolas 2004a: 273; 2004b: 579; Robillard 2006: 674 (phylogeny and calling song study, identified as C. canotus Saussure, 1878 whose type was meanwhile re-examined).

TYPE MATERIAL. — [ Vanuatu] Nouvelles-Hébrides. [Province Penama], île Pentecôte [Pentecost Is.], 1934, E. Aubert de la Rüe, ♂ holotype, identified as C. canotus byT. Robillard (Robillard & Desutter-Grandcolas 2004a) (MNHN-ENSIF1122). — Same locality, date and collector as holotype, ♀ allotype, identified as C. canotus by T. Robillard (Robillard & Desutter-Grandcolas 2004a) (MNHN-ENSIF1138). — [ Vanuatu] Nouvelles-Hébrides. [Province Penama], île Pentecôte [Pentecost Is.], Mt.

Lerip, 1935-1936, E. Aubert de la Rüe, 1 ♀ paratype (MNHN-ENSIF1137).

TYPE LOCALITY. — Vanuatu, Pentecost Is.

ETYMOLOGY. — Species named after the type locality.

DISTRIBUTION. — Vanuatu, Pentecost Is.

DIAGNOSIS. — Species very similar to C. enkraussi in shape, size and colouration, homogeneous brown, but separate by male and female genitalia. Th e main difference between the two species is the wider shape and larger size of the endophallic sclerite in C. pentecotensis n. sp., the lateral arms of the sclerite being in continuity with the ectophallic fold sclerotization in C. pentecotensis n. sp. but not in C. enkraussi .

DESCRIPTION

Species very similar to C. enkraussi . Hind tibiae dorsal face with 7-9 inner (m = 8, n = 3) and 12 or 13 outer (m = 13 n =3) spines above spurs; 7 or 8 inner (m = 7, n = 3), 8-11 (m = 9, n = 3) outer spines between spurs. Tarsomeres III-1 with 4-6 spines on dorso-external edges (m = 5, n = 3).

Male

FW colouration: light brown, translucent, with the same pattern of faint dark areas as in C. enkraussi . FW venation: Similar to C. enkraussi ; stridulatory vein with 167 teeth (HT), located on both transverse (123 teeth) and basal longitudinal (42 teeth) parts of 1A. Apical field lanceolate with 4 bifurcations of CuA posterior to mirror. Lateral field: latero-dorsal angle made by MP; R with 8 bifurcating veins.

Male genitalia ( Fig. 4D, E ). Endophallic sclerite wide, larger than in C. enkraussi , its lateral arms in continuity with ectophallic fold sclerotization, unlike in C. enkraussi . Differs from C. enkraussi by many details concerning: shape of pseudepiphallus with narrowed posterior part, pseudepiphallic paramere structure, ectophallic fold sclerotization.

Female

FW venation: 9 or 10 strong longitudinal veins on dorsal field (including 3 anal veins). Ovipositor: Slightly longer than C. enkraussi , but still short; apex dorsal edge slightly denticulate ( Fig. 6C ).

Female genitalia ( Fig. 7 D-F): same general shape as C. enkraussi , but apex more protruding, and ventral bump narrower, with a median ventral sclerotized expansion.

Measurements

See Table 5.

HABITAT, LIFE HISTORY TRAITS AND BEHAVIOUR Not documented.

Figures

FIG. 4. — Male genitalia:A-C, Cardiodactylus enkraussi Otte,2007,in ventral (A), dorsal (B) and lateral (C) views;D, E, C. pentecotensis n. sp., in ventral (D) and lateral (E) views; F-H, C. tankara n. sp., in ventral (F), dorsal (G) and lateral (H) views. Abbreviations: see Material and methods. Scale bar: 1 mm.

FIG. 6. — Apex of ovipositor in lateral view: A, Cardiodactylus enkraussi Otte, 2007; B, C. tankara n. sp.; C, C. pentecotensis n. sp.; D, C. aobaensis n. sp.; E, C. cheesmani Otte, 2007a; F, C. epiensis n. sp.; G, Lebinthus santoensis n. sp.; H, L. nattawa n. sp.; I, L. malekulensis n. sp. Scale bar: 1 mm.

FIG. 7.— Female copulatory papilla in ventral,dorsal and lateral views:A-C, Cardiodactylus enkraussi Otte,2007;D-F, C. pentecotensis n. sp.; G-I, C. cheesmani Otte, 2007; J-L, C. tankara n. sp.; M-O, C. aobaensis n. sp.; P-R, C. epiensis n. sp. Scale bars: 1 mm.