Platybinthus sandyi Robillard & Tan 2022, gen. et sp. nov.
Creators: name: Robillard, Tony
name: Tan, Ming Kai
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Orthoptera
Gryllidae
Platybinthus
Platybinthus sandyi

description: Platybinthus sandyi gen. et sp. nov.
urn:lsid:zoobank.org:act: 90D41D87-CFAD-4C8F-A623-47529A073E43
Figs 3, 4E–H, 5C, F, 6C, 7B, D, 8D–F
Diagnosis
This new species differs from Platybinthus striolatus gen. et comb. nov. by its larger size and by male genitalia with pseudepiphallus with dorsal disk larger, apical margins straight and parallel and by pseudepiphallic parameres with ventral lobe appearing triangular and flattened.
Etymology
This species is dedicated to Sandy Robillard, the late brother of the first author.
Material examined
Holotype INDONESIA • ♂; [Maluku] Sangi en Talaud, Goegoeti [Indonesia: Maluku, Morotai, Pilowo, Guguti (2°6′3.63″ N, 128°15′36.83″ E)]; Jun. 1926; Erie leg.; molecular sample L163; GenBank accession: OP684787 and OP686540; MZB.ORTH.1786.
Paratypes INDONESIA • 1 ♀; same collection data as for holotype; MZB.ORTH.1787 • 1 ♀; same collection data as for holotype; MZB.ORTH.1788 • 1 ♂; Morotai, Goegoeti [Maluku, Morotai, Pilowo, Guguti (2°6′3.63″ N, 128°15′36.83″ E)]; 1926; Erie leg. (ex MZB.ORTH.1839); MNHN-EO-ENSIF11342.
Remark
The labels of all the type specimens mention “Sangi en Talaud”, seemingly referring to the archipelago of Sangi and Talaud, near northern Sulawesi. However, the manuscript addition of the term Goegoeti on the labels of all the specimens of the type series, completed with the term “Morotai” on the label of one male specimen, suggests that the type locality may rather correspond to the locality of Pilowo, Goegoeti (Guguti) (2°6′3.63″ N, 128°15′36.83″ E), in the island of Morotai, Maluku.
Description
Size relatively large for the genus (Fig. 4E–H). Vertex and fastigium brown, lighter in colouration than P. punctatus gen. et comb. nov. (Fig. 5C); back of eyes with a cream-coloured band. Scapes brown. Antennae orange brown. Fastigium verticis and frons brown to dark brown (Fig. 5F). Mandibles mostly brown; clypeus brown with some dark patterns, labrum pale yellow with two dark longitudinal stripes in the middle; maxillary palpi with segments white with some dark stripes (more prominent on external surface) (Fig. 5F). Gena dark brown with a triangular white spot beneath eyes and two small white spots nearer to mouthparts. Lateral parts of head dark brown behind eyes (Fig. 6C). Pronotum dorsal disk yellow mottled with dark brown, anterior and posterior margins straight; lateral lobes very dark brown (Fig. 6C). Legs: FI–II pale with numerous dark brown spots and incomplete ring near apices, knee area dark brown; TI–II pale with three broad dark brown rings; tarsomeres 1 and 3 of each leg yellow basally then dark brown; FIII brown finely mottled with yellow and dark brown, knees dark brown; TIII brown to dark brown, spurs lighter brown with dark tips. Abdominal tergites dark brown with faint dark and light spots. Cerci brown with faint apical rings.
Male
FW surpassing base of third tergite. FW colouration (Fig. 7B): dorsal field cells mostly yellow brown, with two faint pale spots at the basal and apical end of Cu and M; veins pale brown; M yellow brown, R red brown. Lateral field cells dark brown and whitish near ventral margin; longitudinal veins red brown. FW venation: harp vein bordering false mirror strongly sinuous, slightly angular. Anal area of dorsal field not extending beyond apex of lateral field, apex of dorsal field truncated.
GENITALIA (Fig. 8D–F). Pseudepiphallus typical of genus, except dorsal disk larger, posterior apex truncated, lateral margins at the apex straight and parallel. Rami shorter. Pseudepiphallic parameres with ventral lobe appearing triangular and flattened. Endophallic sclerite with long anterior region reaching anterior margin of pseudepiphallic sclerite and a short median expansion and small lateral arms posteriorly. Endophallic apodeme with lateral lamellae pointing laterally.
Female
FWs reaching middle of fourth tergite, faintly overlapping. Cells of dorsal field dark brown, not translucent, with strong orange longitudinal veins and weak yellow transverse ones; with 9 veins on dorsal field, 4 on lateral field (Fig. 7D). Dorsal field apex truncated, lateral field posterior margin oblique.
GENITALIA. Ovipositor as long as FIII, apex very slightly denticulate dorsally. Copulatory papilla not observed (lost in female specimen).
Measurements
See Table 1.
Ecology
Unknown.
Distribution
INDONESIA: Morotai Island near northern Halmahera.
Type locality
INDONESIA: Morotai Island, near northern Halmahera (see remarks).
Calling song
Unknown.
description: Published as part of Robillard, Tony & Tan, Ming Kai, 2023, Platybinthus, a new genus of Lebinthina crickets (Orthoptera, Gryllidae, Eneopterinae) from Maluka, Indonesia, pp. 46-66 in European Journal of Taxonomy 856 (1) on pages 61-62, DOI: 10.5852/ejt.2023.856.2027, http://zenodo.org/record/7544313