Cardiodactylus thailandia Robillard

Robillard, Tony, 2011, New Cardiodactylus species from unsuspected places in Southeast Asia (Orthoptera, Grylloidea, Eneopterinae), Zootaxa 2909, pp. 14-26 : 22-24

Cardiodactylus thailandia Robillard , sp. nov.

( Figs 6–7 )

Type material. Male holotype: Thailand. Khaoyai [Khao Yai] National Park, about 14.VII.1986 (M. Takeda) ( OMNH).

Type locality. Thailand. Khao Yai National Park

Etymology. Named after the type locality.

Distribution. Thailand.

Diagnosis. Species of average size for the genus, with very contrasted coloration, close to C. pelagus Otte, 2007 from Borneo and C. guttulus (Matsumura, 1913) from Japan, with differences on colour pattern and the shape of the pseudepiphallic sclerite and parameres and in male genitalia.

Description. Average size for the species group. General coloration very contrasted, orange brown, dark brown and whitish brown. Head dorsum yellow brown with 4 wide dark brown bands, median ones punctuated, fused with lateral ones near fastigium; bordered by dark brown triangles posterior to eyes ( Figs 6 , 7 A). Fastigium dark brown. Scapes and antennae homogeneously yellow brown. Face and mouth parts almost homogeneously yellow brown, slightly mottled with brown, with 2 dark spots ventral to antennae. Maxillary palpi yellowish, dark brown apically. Head lateral sides with a wide dark brown area posterior to eyes. Pronotum: Dorsal disk trapezoidal, posterior margin straight; yellow brown laterally, median area mottled with dark brown. Lateral lobes dark brown, ventral edges yellow. Legs homogeneously orange brown. Tarsomeres III-1 with 3 spines on dorso-external edges (n=1). Hind wings longer than FWs, the dark brown tail exceeding the forewings one and a half longer than the pronotum. Cerci yellow brown basally then gray brown with dark brown spots. Tergites yellow brown mottled with black.

Male: FW coloration very contrasted ( Figs 6 , 7 B): Dorsal field cells and veins brown, some areas dark brown, black, yellow or translucent. Yellow areas include: bases of anal veins, basal 3/4 of CuA, part of 1A bearing the stridulatory file, harp veins, chords, part of diagonal vein, mirror accessory veins, large rounded area posterior to mirror, area between CuA and MP. Posterior corner of harp whitish. Translucent areas include anterior region of harp and cells posterior to mirror. MP/R area red brown. Area ventral to R black. Lateral field veins: MP black; MA red brown on first half, then black; R black; R projections yellow, their bases black.

FW venation ( Fig. 7 B): 1A slightly bisinuated; CuP missing. Harp longer than wide, with 2 w-shaped harp veins; posterior margin raised along diagonal vein. Mirror area: c1 long and narrow, c2 quite large; mirror (d1) longer than wide, not rounded, separated in two parts by a strong transverse vein, the posterior part almost rectangular; d2 wide, prolonging the mirror, crossed by many accessory veins; e1 very elongated, along the mirror. Apical field short, with 3 cell alignments posterior to mirror. Lateral field with 8 projections of R and 4 more ventral veins. Subgenital plate yellow brown.

Male genitalia ( Fig. 7 C–F): Pseudepiphallus very sclerotized, little setose, clearly narrowed at midlength. Two parallel dorsal ridges, forming a narrow gutter, their dorsal surface bean-shaped and setose, slightly asymmetrical, the left ridge curved externally, the right one straight. Pseudepiphallic sclerite with latero-anterior expansions, but without a membranous sac as in C. novaeguineae . Apex of pseudepiphallus spoon-like, not indented. Rami strong, with large preapical plates. Pseudepiphallic parameres trilobate, the posterior lobe pointed and divergent. Ectophallic arc complete, with a triangular posterior expansion. Ectophallic apodemes wide, slightly divergent; base of apodemes with sclerotized expansions oriented posteriorly. Apex of ectophallic fold membranous and trilobate. Endophallic sclerite with long posterior arms. Endophallic apodeme with both lateral lamellas and a long mediodorsal crest. Membrane of endophallic cavity smooth.

PronL PronW FWL FWW HWT FIIIL FIIIW TIIIL Male holotype 3.2 4.9 14 4.7 5.2 16.4 4.3 14

continued.

TIIIs TaIIIs ST OL Ias Ibs Oas Obs Tt Lt Bt

Male holotype 8 6 11 6 3??? - Female: unknown.

Juvenile: unknown.

Measurements. See Table 2. Habitat and life history traits. Unknown. Behavior. Unknown.

Figures

FIGURE 6. Cardiodactylus thailandia. Habitus drawing (male holotype). Scale bar: 5 mm.

FIGURE 7. Cardiodactylus thailandia. Dorsal view of head coloration (A); male FW venation (B); Lateral (C), dorsal (D) and